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Printk changes for 5.2

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Merge tag 'printk-for-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk

Pull printk updates from Petr Mladek:

 - Allow state reset of printk_once() calls.

 - Prevent crashes when dereferencing invalid pointers in vsprintf().
   Only the first byte is checked for simplicity.

 - Make vsprintf warnings consistent and inlined.

 - Treewide conversion of obsolete %pf, %pF to %ps, %pF printf
   modifiers.

 - Some clean up of vsprintf and test_printf code.

* tag 'printk-for-5.2' of git://git.kernel.org/pub/scm/linux/kernel/git/pmladek/printk:
  lib/vsprintf: Make function pointer_string static
  vsprintf: Limit the length of inlined error messages
  vsprintf: Avoid confusion between invalid address and value
  vsprintf: Prevent crash when dereferencing invalid pointers
  vsprintf: Consolidate handling of unknown pointer specifiers
  vsprintf: Factor out %pO handler as kobject_string()
  vsprintf: Factor out %pV handler as va_format()
  vsprintf: Factor out %p[iI] handler as ip_addr_string()
  vsprintf: Do not check address of well-known strings
  vsprintf: Consistent %pK handling for kptr_restrict == 0
  vsprintf: Shuffle restricted_pointer()
  printk: Tie printk_once / printk_deferred_once into .data.once for reset
  treewide: Switch printk users from %pf and %pF to %ps and %pS, respectively
  lib/test_printf: Switch to bitmap_zalloc()
This commit is contained in:
Linus Torvalds 2019-05-07 09:18:12 -07:00
commit 0968621917
60 changed files with 410 additions and 272 deletions
Download patch file Download diff file Expand all files Collapse all files

2
Documentation/clearing-warn-once.txt
View file

@ -1,5 +1,5 @@
WARN_ONCE / WARN_ON_ONCE only print a warning once. WARN_ONCE / WARN_ON_ONCE / printk_once only emit a message once.
echo 1 > /sys/kernel/debug/clear_warn_once echo 1 > /sys/kernel/debug/clear_warn_once

8
Documentation/core-api/printk-formats.rst
View file

@ -58,6 +58,14 @@ A raw pointer value may be printed with %p which will hash the address
before printing. The kernel also supports extended specifiers for printing before printing. The kernel also supports extended specifiers for printing
pointers of different types. pointers of different types.
Some of the extended specifiers print the data on the given address instead
of printing the address itself. In this case, the following error messages
might be printed instead of the unreachable information::
(null) data on plain NULL address
(efault) data on invalid address
(einval) invalid data on a valid address
Plain Pointers Plain Pointers
-------------- --------------

20
arch/alpha/kernel/pci_iommu.c
View file

@ -249,7 +249,7 @@ static int pci_dac_dma_supported(struct pci_dev *dev, u64 mask)
ok = 0; ok = 0;
/* If both conditions above are met, we are fine. */ /* If both conditions above are met, we are fine. */
DBGA("pci_dac_dma_supported %s from %pf\n", DBGA("pci_dac_dma_supported %s from %ps\n",
ok ? "yes" : "no", __builtin_return_address(0)); ok ? "yes" : "no", __builtin_return_address(0));
return ok; return ok;
@ -281,7 +281,7 @@ pci_map_single_1(struct pci_dev *pdev, void *cpu_addr, size_t size,
&& paddr + size <= __direct_map_size) { && paddr + size <= __direct_map_size) {
ret = paddr + __direct_map_base; ret = paddr + __direct_map_base;
DBGA2("pci_map_single: [%p,%zx] -> direct %llx from %pf\n", DBGA2("pci_map_single: [%p,%zx] -> direct %llx from %ps\n",
cpu_addr, size, ret, __builtin_return_address(0)); cpu_addr, size, ret, __builtin_return_address(0));
return ret; return ret;
@ -292,7 +292,7 @@ pci_map_single_1(struct pci_dev *pdev, void *cpu_addr, size_t size,
if (dac_allowed) { if (dac_allowed) {
ret = paddr + alpha_mv.pci_dac_offset; ret = paddr + alpha_mv.pci_dac_offset;
DBGA2("pci_map_single: [%p,%zx] -> DAC %llx from %pf\n", DBGA2("pci_map_single: [%p,%zx] -> DAC %llx from %ps\n",
cpu_addr, size, ret, __builtin_return_address(0)); cpu_addr, size, ret, __builtin_return_address(0));
return ret; return ret;
@ -329,7 +329,7 @@ pci_map_single_1(struct pci_dev *pdev, void *cpu_addr, size_t size,
ret = arena->dma_base + dma_ofs * PAGE_SIZE; ret = arena->dma_base + dma_ofs * PAGE_SIZE;
ret += (unsigned long)cpu_addr & ~PAGE_MASK; ret += (unsigned long)cpu_addr & ~PAGE_MASK;
DBGA2("pci_map_single: [%p,%zx] np %ld -> sg %llx from %pf\n", DBGA2("pci_map_single: [%p,%zx] np %ld -> sg %llx from %ps\n",
cpu_addr, size, npages, ret, __builtin_return_address(0)); cpu_addr, size, npages, ret, __builtin_return_address(0));
return ret; return ret;
@ -396,14 +396,14 @@ static void alpha_pci_unmap_page(struct device *dev, dma_addr_t dma_addr,
&& dma_addr < __direct_map_base + __direct_map_size) { && dma_addr < __direct_map_base + __direct_map_size) {
/* Nothing to do. */ /* Nothing to do. */
DBGA2("pci_unmap_single: direct [%llx,%zx] from %pf\n", DBGA2("pci_unmap_single: direct [%llx,%zx] from %ps\n",
dma_addr, size, __builtin_return_address(0)); dma_addr, size, __builtin_return_address(0));
return; return;
} }
if (dma_addr > 0xffffffff) { if (dma_addr > 0xffffffff) {
DBGA2("pci64_unmap_single: DAC [%llx,%zx] from %pf\n", DBGA2("pci64_unmap_single: DAC [%llx,%zx] from %ps\n",
dma_addr, size, __builtin_return_address(0)); dma_addr, size, __builtin_return_address(0));
return; return;
} }
@ -435,7 +435,7 @@ static void alpha_pci_unmap_page(struct device *dev, dma_addr_t dma_addr,
spin_unlock_irqrestore(&arena->lock, flags); spin_unlock_irqrestore(&arena->lock, flags);
DBGA2("pci_unmap_single: sg [%llx,%zx] np %ld from %pf\n", DBGA2("pci_unmap_single: sg [%llx,%zx] np %ld from %ps\n",
dma_addr, size, npages, __builtin_return_address(0)); dma_addr, size, npages, __builtin_return_address(0));
} }
@ -458,7 +458,7 @@ try_again:
cpu_addr = (void *)__get_free_pages(gfp | __GFP_ZERO, order); cpu_addr = (void *)__get_free_pages(gfp | __GFP_ZERO, order);
if (! cpu_addr) { if (! cpu_addr) {
printk(KERN_INFO "pci_alloc_consistent: " printk(KERN_INFO "pci_alloc_consistent: "
"get_free_pages failed from %pf\n", "get_free_pages failed from %ps\n",
__builtin_return_address(0)); __builtin_return_address(0));
/* ??? Really atomic allocation? Otherwise we could play /* ??? Really atomic allocation? Otherwise we could play
with vmalloc and sg if we can't find contiguous memory. */ with vmalloc and sg if we can't find contiguous memory. */
@ -477,7 +477,7 @@ try_again:
goto try_again; goto try_again;
} }
DBGA2("pci_alloc_consistent: %zx -> [%p,%llx] from %pf\n", DBGA2("pci_alloc_consistent: %zx -> [%p,%llx] from %ps\n",
size, cpu_addr, *dma_addrp, __builtin_return_address(0)); size, cpu_addr, *dma_addrp, __builtin_return_address(0));
return cpu_addr; return cpu_addr;
@ -497,7 +497,7 @@ static void alpha_pci_free_coherent(struct device *dev, size_t size,
pci_unmap_single(pdev, dma_addr, size, PCI_DMA_BIDIRECTIONAL); pci_unmap_single(pdev, dma_addr, size, PCI_DMA_BIDIRECTIONAL);
free_pages((unsigned long)cpu_addr, get_order(size)); free_pages((unsigned long)cpu_addr, get_order(size));
DBGA2("pci_free_consistent: [%llx,%zx] from %pf\n", DBGA2("pci_free_consistent: [%llx,%zx] from %ps\n",
dma_addr, size, __builtin_return_address(0)); dma_addr, size, __builtin_return_address(0));
} }

2
arch/arm/mach-imx/pm-imx6.c
View file

@ -631,7 +631,7 @@ static void imx6_pm_stby_poweroff(void)
static int imx6_pm_stby_poweroff_probe(void) static int imx6_pm_stby_poweroff_probe(void)
{ {
if (pm_power_off) { if (pm_power_off) {
pr_warn("%s: pm_power_off already claimed %p %pf!\n", pr_warn("%s: pm_power_off already claimed %p %ps!\n",
__func__, pm_power_off, pm_power_off); __func__, pm_power_off, pm_power_off);
return -EBUSY; return -EBUSY;
} }

2
arch/arm/mm/alignment.c
View file

@ -133,7 +133,7 @@ static const char *usermode_action[] = {
static int alignment_proc_show(struct seq_file *m, void *v) static int alignment_proc_show(struct seq_file *m, void *v)
{ {
seq_printf(m, "User:\t\t%lu\n", ai_user); seq_printf(m, "User:\t\t%lu\n", ai_user);
seq_printf(m, "System:\t\t%lu (%pF)\n", ai_sys, ai_sys_last_pc); seq_printf(m, "System:\t\t%lu (%pS)\n", ai_sys, ai_sys_last_pc);
seq_printf(m, "Skipped:\t%lu\n", ai_skipped); seq_printf(m, "Skipped:\t%lu\n", ai_skipped);
seq_printf(m, "Half:\t\t%lu\n", ai_half); seq_printf(m, "Half:\t\t%lu\n", ai_half);
seq_printf(m, "Word:\t\t%lu\n", ai_word); seq_printf(m, "Word:\t\t%lu\n", ai_word);

2
arch/arm/nwfpe/fpmodule.c
View file

@ -147,7 +147,7 @@ void float_raise(signed char flags)
#ifdef CONFIG_DEBUG_USER #ifdef CONFIG_DEBUG_USER
if (flags & debug) if (flags & debug)
printk(KERN_DEBUG printk(KERN_DEBUG
"NWFPE: %s[%d] takes exception %08x at %pf from %08lx\n", "NWFPE: %s[%d] takes exception %08x at %ps from %08lx\n",
current->comm, current->pid, flags, current->comm, current->pid, flags,
__builtin_return_address(0), GET_USERREG()->ARM_pc); __builtin_return_address(0), GET_USERREG()->ARM_pc);
#endif #endif

2
arch/microblaze/mm/pgtable.c
View file

@ -75,7 +75,7 @@ static void __iomem *__ioremap(phys_addr_t addr, unsigned long size,
p >= memory_start && p < virt_to_phys(high_memory) && p >= memory_start && p < virt_to_phys(high_memory) &&
!(p >= __virt_to_phys((phys_addr_t)__bss_stop) && !(p >= __virt_to_phys((phys_addr_t)__bss_stop) &&
p < __virt_to_phys((phys_addr_t)__bss_stop))) { p < __virt_to_phys((phys_addr_t)__bss_stop))) {
pr_warn("__ioremap(): phys addr "PTE_FMT" is RAM lr %pf\n", pr_warn("__ioremap(): phys addr "PTE_FMT" is RAM lr %ps\n",
(unsigned long)p, __builtin_return_address(0)); (unsigned long)p, __builtin_return_address(0));
return NULL; return NULL;
} }

2
arch/sparc/kernel/ds.c
View file

@ -876,7 +876,7 @@ void ldom_power_off(void)
static void ds_conn_reset(struct ds_info *dp) static void ds_conn_reset(struct ds_info *dp)
{ {
printk(KERN_ERR "ds-%llu: ds_conn_reset() from %pf\n", printk(KERN_ERR "ds-%llu: ds_conn_reset() from %ps\n",
dp->id, __builtin_return_address(0)); dp->id, __builtin_return_address(0));
} }

2
arch/um/kernel/sysrq.c
View file

@ -20,7 +20,7 @@
static void _print_addr(void *data, unsigned long address, int reliable) static void _print_addr(void *data, unsigned long address, int reliable)
{ {
pr_info(" [<%08lx>] %s%pF\n", address, reliable ? "" : "? ", pr_info(" [<%08lx>] %s%pS\n", address, reliable ? "" : "? ",
(void *)address); (void *)address);
} }

2
arch/x86/include/asm/trace/exceptions.h
View file

@ -30,7 +30,7 @@ DECLARE_EVENT_CLASS(x86_exceptions,
__entry->error_code = error_code; __entry->error_code = error_code;
), ),
TP_printk("address=%pf ip=%pf error_code=0x%lx", TP_printk("address=%ps ip=%ps error_code=0x%lx",
(void *)__entry->address, (void *)__entry->ip, (void *)__entry->address, (void *)__entry->ip,
__entry->error_code) ); __entry->error_code) );

4
arch/x86/mm/extable.c
View file

@ -145,7 +145,7 @@ __visible bool ex_handler_rdmsr_unsafe(const struct exception_table_entry *fixup
unsigned long error_code, unsigned long error_code,
unsigned long fault_addr) unsigned long fault_addr)
{ {
if (pr_warn_once("unchecked MSR access error: RDMSR from 0x%x at rIP: 0x%lx (%pF)\n", if (pr_warn_once("unchecked MSR access error: RDMSR from 0x%x at rIP: 0x%lx (%pS)\n",
(unsigned int)regs->cx, regs->ip, (void *)regs->ip)) (unsigned int)regs->cx, regs->ip, (void *)regs->ip))
show_stack_regs(regs); show_stack_regs(regs);
@ -162,7 +162,7 @@ __visible bool ex_handler_wrmsr_unsafe(const struct exception_table_entry *fixup
unsigned long error_code, unsigned long error_code,
unsigned long fault_addr) unsigned long fault_addr)
{ {
if (pr_warn_once("unchecked MSR access error: WRMSR to 0x%x (tried to write 0x%08x%08x) at rIP: 0x%lx (%pF)\n", if (pr_warn_once("unchecked MSR access error: WRMSR to 0x%x (tried to write 0x%08x%08x) at rIP: 0x%lx (%pS)\n",
(unsigned int)regs->cx, (unsigned int)regs->dx, (unsigned int)regs->cx, (unsigned int)regs->dx,
(unsigned int)regs->ax, regs->ip, (void *)regs->ip)) (unsigned int)regs->ax, regs->ip, (void *)regs->ip))
show_stack_regs(regs); show_stack_regs(regs);

2
arch/x86/xen/multicalls.c
View file

@ -105,7 +105,7 @@ void xen_mc_flush(void)
for (i = 0; i < b->mcidx; i++) { for (i = 0; i < b->mcidx; i++) {
if (b->entries[i].result < 0) { if (b->entries[i].result < 0) {
#if MC_DEBUG #if MC_DEBUG
pr_err(" call %2d: op=%lu arg=[%lx] result=%ld\t%pF\n", pr_err(" call %2d: op=%lu arg=[%lx] result=%ld\t%pS\n",
i + 1, i + 1,
b->debug[i].op, b->debug[i].op,
b->debug[i].args[0], b->debug[i].args[0],

2
drivers/acpi/device_pm.c
View file

@ -414,7 +414,7 @@ static void acpi_pm_notify_handler(acpi_handle handle, u32 val, void *not_used)
if (adev->wakeup.flags.notifier_present) { if (adev->wakeup.flags.notifier_present) {
pm_wakeup_ws_event(adev->wakeup.ws, 0, acpi_s2idle_wakeup()); pm_wakeup_ws_event(adev->wakeup.ws, 0, acpi_s2idle_wakeup());
if (adev->wakeup.context.func) { if (adev->wakeup.context.func) {
acpi_handle_debug(handle, "Running %pF for %s\n", acpi_handle_debug(handle, "Running %pS for %s\n",
adev->wakeup.context.func, adev->wakeup.context.func,
dev_name(adev->wakeup.context.dev)); dev_name(adev->wakeup.context.dev));
adev->wakeup.context.func(&adev->wakeup.context); adev->wakeup.context.func(&adev->wakeup.context);

6
drivers/base/power/main.c
View file

@ -207,7 +207,7 @@ static ktime_t initcall_debug_start(struct device *dev, void *cb)
if (!pm_print_times_enabled) if (!pm_print_times_enabled)
return 0; return 0;
dev_info(dev, "calling %pF @ %i, parent: %s\n", cb, dev_info(dev, "calling %pS @ %i, parent: %s\n", cb,
task_pid_nr(current), task_pid_nr(current),
dev->parent ? dev_name(dev->parent) : "none"); dev->parent ? dev_name(dev->parent) : "none");
return ktime_get(); return ktime_get();
@ -225,7 +225,7 @@ static void initcall_debug_report(struct device *dev, ktime_t calltime,
rettime = ktime_get(); rettime = ktime_get();
nsecs = (s64) ktime_to_ns(ktime_sub(rettime, calltime)); nsecs = (s64) ktime_to_ns(ktime_sub(rettime, calltime));
dev_info(dev, "%pF returned %d after %Ld usecs\n", cb, error, dev_info(dev, "%pS returned %d after %Ld usecs\n", cb, error,
(unsigned long long)nsecs >> 10); (unsigned long long)nsecs >> 10);
} }
@ -2051,7 +2051,7 @@ EXPORT_SYMBOL_GPL(dpm_suspend_start);
void __suspend_report_result(const char *function, void *fn, int ret) void __suspend_report_result(const char *function, void *fn, int ret)
{ {
if (ret) if (ret)
pr_err("%s(): %pF returns %d\n", function, fn, ret); pr_err("%s(): %pS returns %d\n", function, fn, ret);
} }
EXPORT_SYMBOL_GPL(__suspend_report_result); EXPORT_SYMBOL_GPL(__suspend_report_result);

12
drivers/base/syscore.c
View file

@ -62,19 +62,19 @@ int syscore_suspend(void)
list_for_each_entry_reverse(ops, &syscore_ops_list, node) list_for_each_entry_reverse(ops, &syscore_ops_list, node)
if (ops->suspend) { if (ops->suspend) {
if (initcall_debug) if (initcall_debug)
pr_info("PM: Calling %pF\n", ops->suspend); pr_info("PM: Calling %pS\n", ops->suspend);
ret = ops->suspend(); ret = ops->suspend();
if (ret) if (ret)
goto err_out; goto err_out;
WARN_ONCE(!irqs_disabled(), WARN_ONCE(!irqs_disabled(),
"Interrupts enabled after %pF\n", ops->suspend); "Interrupts enabled after %pS\n", ops->suspend);
} }
trace_suspend_resume(TPS("syscore_suspend"), 0, false); trace_suspend_resume(TPS("syscore_suspend"), 0, false);
return 0; return 0;
err_out: err_out:
pr_err("PM: System core suspend callback %pF failed.\n", ops->suspend); pr_err("PM: System core suspend callback %pS failed.\n", ops->suspend);
list_for_each_entry_continue(ops, &syscore_ops_list, node) list_for_each_entry_continue(ops, &syscore_ops_list, node)
if (ops->resume) if (ops->resume)
@ -100,10 +100,10 @@ void syscore_resume(void)
list_for_each_entry(ops, &syscore_ops_list, node) list_for_each_entry(ops, &syscore_ops_list, node)
if (ops->resume) { if (ops->resume) {
if (initcall_debug) if (initcall_debug)
pr_info("PM: Calling %pF\n", ops->resume); pr_info("PM: Calling %pS\n", ops->resume);
ops->resume(); ops->resume();
WARN_ONCE(!irqs_disabled(), WARN_ONCE(!irqs_disabled(),
"Interrupts enabled after %pF\n", ops->resume); "Interrupts enabled after %pS\n", ops->resume);
} }
trace_suspend_resume(TPS("syscore_resume"), 0, false); trace_suspend_resume(TPS("syscore_resume"), 0, false);
} }
@ -122,7 +122,7 @@ void syscore_shutdown(void)
list_for_each_entry_reverse(ops, &syscore_ops_list, node) list_for_each_entry_reverse(ops, &syscore_ops_list, node)
if (ops->shutdown) { if (ops->shutdown) {
if (initcall_debug) if (initcall_debug)
pr_info("PM: Calling %pF\n", ops->shutdown); pr_info("PM: Calling %pS\n", ops->shutdown);
ops->shutdown(); ops->shutdown();
} }

2
drivers/block/drbd/drbd_receiver.c
View file

@ -6115,7 +6115,7 @@ int drbd_ack_receiver(struct drbd_thread *thi)
err = cmd->fn(connection, &pi); err = cmd->fn(connection, &pi);
if (err) { if (err) {
drbd_err(connection, "%pf failed\n", cmd->fn); drbd_err(connection, "%ps failed\n", cmd->fn);
goto reconnect; goto reconnect;
} }

10
drivers/block/floppy.c
View file

@ -1693,7 +1693,7 @@ irqreturn_t floppy_interrupt(int irq, void *dev_id)
/* we don't even know which FDC is the culprit */ /* we don't even know which FDC is the culprit */
pr_info("DOR0=%x\n", fdc_state[0].dor); pr_info("DOR0=%x\n", fdc_state[0].dor);
pr_info("floppy interrupt on bizarre fdc %d\n", fdc); pr_info("floppy interrupt on bizarre fdc %d\n", fdc);
pr_info("handler=%pf\n", handler); pr_info("handler=%ps\n", handler);
is_alive(__func__, "bizarre fdc"); is_alive(__func__, "bizarre fdc");
return IRQ_NONE; return IRQ_NONE;
} }
@ -1752,7 +1752,7 @@ static void reset_interrupt(void)
debugt(__func__, ""); debugt(__func__, "");
result(); /* get the status ready for set_fdc */ result(); /* get the status ready for set_fdc */
if (FDCS->reset) { if (FDCS->reset) {
pr_info("reset set in interrupt, calling %pf\n", cont->error); pr_info("reset set in interrupt, calling %ps\n", cont->error);
cont->error(); /* a reset just after a reset. BAD! */ cont->error(); /* a reset just after a reset. BAD! */
} }
cont->redo(); cont->redo();
@ -1793,7 +1793,7 @@ static void show_floppy(void)
pr_info("\n"); pr_info("\n");
pr_info("floppy driver state\n"); pr_info("floppy driver state\n");
pr_info("-------------------\n"); pr_info("-------------------\n");
pr_info("now=%lu last interrupt=%lu diff=%lu last called handler=%pf\n", pr_info("now=%lu last interrupt=%lu diff=%lu last called handler=%ps\n",
jiffies, interruptjiffies, jiffies - interruptjiffies, jiffies, interruptjiffies, jiffies - interruptjiffies,
lasthandler); lasthandler);
@ -1812,9 +1812,9 @@ static void show_floppy(void)
pr_info("status=%x\n", fd_inb(FD_STATUS)); pr_info("status=%x\n", fd_inb(FD_STATUS));
pr_info("fdc_busy=%lu\n", fdc_busy); pr_info("fdc_busy=%lu\n", fdc_busy);
if (do_floppy) if (do_floppy)
pr_info("do_floppy=%pf\n", do_floppy); pr_info("do_floppy=%ps\n", do_floppy);
if (work_pending(&floppy_work)) if (work_pending(&floppy_work))
pr_info("floppy_work.func=%pf\n", floppy_work.func); pr_info("floppy_work.func=%ps\n", floppy_work.func);
if (delayed_work_pending(&fd_timer)) if (delayed_work_pending(&fd_timer))
pr_info("delayed work.function=%p expires=%ld\n", pr_info("delayed work.function=%p expires=%ld\n",
fd_timer.work.func, fd_timer.work.func,

2
drivers/cpufreq/cpufreq.c
View file

@ -466,7 +466,7 @@ static void cpufreq_list_transition_notifiers(void)
mutex_lock(&cpufreq_transition_notifier_list.mutex); mutex_lock(&cpufreq_transition_notifier_list.mutex);
for (nb = cpufreq_transition_notifier_list.head; nb; nb = nb->next) for (nb = cpufreq_transition_notifier_list.head; nb; nb = nb->next)
pr_info("%pF\n", nb->notifier_call); pr_info("%pS\n", nb->notifier_call);
mutex_unlock(&cpufreq_transition_notifier_list.mutex); mutex_unlock(&cpufreq_transition_notifier_list.mutex);
} }

2
drivers/mmc/core/quirks.h
View file

@ -159,7 +159,7 @@ static inline void mmc_fixup_device(struct mmc_card *card,
(f->ext_csd_rev == EXT_CSD_REV_ANY || (f->ext_csd_rev == EXT_CSD_REV_ANY ||
f->ext_csd_rev == card->ext_csd.rev) && f->ext_csd_rev == card->ext_csd.rev) &&
rev >= f->rev_start && rev <= f->rev_end) { rev >= f->rev_start && rev <= f->rev_end) {
dev_dbg(&card->dev, "calling %pf\n", f->vendor_fixup); dev_dbg(&card->dev, "calling %ps\n", f->vendor_fixup);
f->vendor_fixup(card, f->data); f->vendor_fixup(card, f->data);
} }
} }

2
drivers/nvdimm/bus.c
View file

@ -581,7 +581,7 @@ int __nd_driver_register(struct nd_device_driver *nd_drv, struct module *owner,
struct device_driver *drv = &nd_drv->drv; struct device_driver *drv = &nd_drv->drv;
if (!nd_drv->type) { if (!nd_drv->type) {
pr_debug("driver type bitmask not set (%pf)\n", pr_debug("driver type bitmask not set (%ps)\n",
__builtin_return_address(0)); __builtin_return_address(0));
return -EINVAL; return -EINVAL;
} }

2
drivers/nvdimm/dimm_devs.c
View file

@ -58,7 +58,7 @@ static int validate_dimm(struct nvdimm_drvdata *ndd)
rc = nvdimm_check_config_data(ndd->dev); rc = nvdimm_check_config_data(ndd->dev);
if (rc) if (rc)
dev_dbg(ndd->dev, "%pf: %s error: %d\n", dev_dbg(ndd->dev, "%ps: %s error: %d\n",
__builtin_return_address(0), __func__, rc); __builtin_return_address(0), __func__, rc);
return rc; return rc;
} }

14
drivers/pci/pci-driver.c
View file

@ -578,7 +578,7 @@ static int pci_legacy_suspend(struct device *dev, pm_message_t state)
if (!pci_dev->state_saved && pci_dev->current_state != PCI_D0 if (!pci_dev->state_saved && pci_dev->current_state != PCI_D0
&& pci_dev->current_state != PCI_UNKNOWN) { && pci_dev->current_state != PCI_UNKNOWN) {
WARN_ONCE(pci_dev->current_state != prev, WARN_ONCE(pci_dev->current_state != prev,
"PCI PM: Device state not saved by %pF\n", "PCI PM: Device state not saved by %pS\n",
drv->suspend); drv->suspend);
} }
} }
@ -605,7 +605,7 @@ static int pci_legacy_suspend_late(struct device *dev, pm_message_t state)
if (!pci_dev->state_saved && pci_dev->current_state != PCI_D0 if (!pci_dev->state_saved && pci_dev->current_state != PCI_D0
&& pci_dev->current_state != PCI_UNKNOWN) { && pci_dev->current_state != PCI_UNKNOWN) {
WARN_ONCE(pci_dev->current_state != prev, WARN_ONCE(pci_dev->current_state != prev,
"PCI PM: Device state not saved by %pF\n", "PCI PM: Device state not saved by %pS\n",
drv->suspend_late); drv->suspend_late);
goto Fixup; goto Fixup;
} }
@ -773,7 +773,7 @@ static int pci_pm_suspend(struct device *dev)
if (!pci_dev->state_saved && pci_dev->current_state != PCI_D0 if (!pci_dev->state_saved && pci_dev->current_state != PCI_D0
&& pci_dev->current_state != PCI_UNKNOWN) { && pci_dev->current_state != PCI_UNKNOWN) {
WARN_ONCE(pci_dev->current_state != prev, WARN_ONCE(pci_dev->current_state != prev,
"PCI PM: State of device not saved by %pF\n", "PCI PM: State of device not saved by %pS\n",
pm->suspend); pm->suspend);
} }
} }
@ -821,7 +821,7 @@ static int pci_pm_suspend_noirq(struct device *dev)
if (!pci_dev->state_saved && pci_dev->current_state != PCI_D0 if (!pci_dev->state_saved && pci_dev->current_state != PCI_D0
&& pci_dev->current_state != PCI_UNKNOWN) { && pci_dev->current_state != PCI_UNKNOWN) {
WARN_ONCE(pci_dev->current_state != prev, WARN_ONCE(pci_dev->current_state != prev,
"PCI PM: State of device not saved by %pF\n", "PCI PM: State of device not saved by %pS\n",
pm->suspend_noirq); pm->suspend_noirq);
goto Fixup; goto Fixup;
} }
@ -1260,11 +1260,11 @@ static int pci_pm_runtime_suspend(struct device *dev)
* log level. * log level.
*/ */
if (error == -EBUSY || error == -EAGAIN) { if (error == -EBUSY || error == -EAGAIN) {
dev_dbg(dev, "can't suspend now (%pf returned %d)\n", dev_dbg(dev, "can't suspend now (%ps returned %d)\n",
pm->runtime_suspend, error); pm->runtime_suspend, error);
return error; return error;
} else if (error) { } else if (error) {
dev_err(dev, "can't suspend (%pf returned %d)\n", dev_err(dev, "can't suspend (%ps returned %d)\n",
pm->runtime_suspend, error); pm->runtime_suspend, error);
return error; return error;
} }
@ -1276,7 +1276,7 @@ static int pci_pm_runtime_suspend(struct device *dev)
&& !pci_dev->state_saved && pci_dev->current_state != PCI_D0 && !pci_dev->state_saved && pci_dev->current_state != PCI_D0
&& pci_dev->current_state != PCI_UNKNOWN) { && pci_dev->current_state != PCI_UNKNOWN) {
WARN_ONCE(pci_dev->current_state != prev, WARN_ONCE(pci_dev->current_state != prev,
"PCI PM: State of device not saved by %pF\n", "PCI PM: State of device not saved by %pS\n",
pm->runtime_suspend); pm->runtime_suspend);
return 0; return 0;
} }

4
drivers/pci/quirks.c
View file

@ -36,7 +36,7 @@ static ktime_t fixup_debug_start(struct pci_dev *dev,
void (*fn)(struct pci_dev *dev)) void (*fn)(struct pci_dev *dev))
{ {
if (initcall_debug) if (initcall_debug)
pci_info(dev, "calling %pF @ %i\n", fn, task_pid_nr(current)); pci_info(dev, "calling %pS @ %i\n", fn, task_pid_nr(current));
return ktime_get(); return ktime_get();
} }
@ -51,7 +51,7 @@ static void fixup_debug_report(struct pci_dev *dev, ktime_t calltime,
delta = ktime_sub(rettime, calltime); delta = ktime_sub(rettime, calltime);
duration = (unsigned long long) ktime_to_ns(delta) >> 10; duration = (unsigned long long) ktime_to_ns(delta) >> 10;
if (initcall_debug || duration > 10000) if (initcall_debug || duration > 10000)
pci_info(dev, "%pF took %lld usecs\n", fn, duration); pci_info(dev, "%pS took %lld usecs\n", fn, duration);
} }
static void pci_do_fixups(struct pci_dev *dev, struct pci_fixup *f, static void pci_do_fixups(struct pci_dev *dev, struct pci_fixup *f,

2
drivers/pnp/quirks.c
View file

@ -458,7 +458,7 @@ void pnp_fixup_device(struct pnp_dev *dev)
for (f = pnp_fixups; *f->id; f++) { for (f = pnp_fixups; *f->id; f++) {
if (!compare_pnp_id(dev->id, f->id)) if (!compare_pnp_id(dev->id, f->id))
continue; continue;
pnp_dbg(&dev->dev, "%s: calling %pF\n", f->id, pnp_dbg(&dev->dev, "%s: calling %pS\n", f->id,
f->quirk_function); f->quirk_function);
f->quirk_function(dev); f->quirk_function(dev);
} }

2
drivers/scsi/esp_scsi.c
View file

@ -1031,7 +1031,7 @@ static int esp_check_spur_intr(struct esp *esp)
static void esp_schedule_reset(struct esp *esp) static void esp_schedule_reset(struct esp *esp)
{ {
esp_log_reset("esp_schedule_reset() from %pf\n", esp_log_reset("esp_schedule_reset() from %ps\n",
__builtin_return_address(0)); __builtin_return_address(0));
esp->flags |= ESP_FLAG_RESETTING; esp->flags |= ESP_FLAG_RESETTING;
esp_event(esp, ESP_EVENT_RESET); esp_event(esp, ESP_EVENT_RESET);

4
fs/btrfs/tests/free-space-tree-tests.c
View file

@ -539,7 +539,7 @@ static int run_test_both_formats(test_func_t test_func, u32 sectorsize,
ret = run_test(test_func, 0, sectorsize, nodesize, alignment); ret = run_test(test_func, 0, sectorsize, nodesize, alignment);
if (ret) { if (ret) {
test_err( test_err(
"%pf failed with extents, sectorsize=%u, nodesize=%u, alignment=%u", "%ps failed with extents, sectorsize=%u, nodesize=%u, alignment=%u",
test_func, sectorsize, nodesize, alignment); test_func, sectorsize, nodesize, alignment);
test_ret = ret; test_ret = ret;
} }
@ -547,7 +547,7 @@ static int run_test_both_formats(test_func_t test_func, u32 sectorsize,
ret = run_test(test_func, 1, sectorsize, nodesize, alignment); ret = run_test(test_func, 1, sectorsize, nodesize, alignment);
if (ret) { if (ret) {
test_err( test_err(
"%pf failed with bitmaps, sectorsize=%u, nodesize=%u, alignment=%u", "%ps failed with bitmaps, sectorsize=%u, nodesize=%u, alignment=%u",
test_func, sectorsize, nodesize, alignment); test_func, sectorsize, nodesize, alignment);
test_ret = ret; test_ret = ret;
} }

2
fs/f2fs/f2fs.h
View file

@ -1338,7 +1338,7 @@ struct f2fs_private_dio {
#ifdef CONFIG_F2FS_FAULT_INJECTION #ifdef CONFIG_F2FS_FAULT_INJECTION
#define f2fs_show_injection_info(type) \ #define f2fs_show_injection_info(type) \
printk_ratelimited("%sF2FS-fs : inject %s in %s of %pF\n", \ printk_ratelimited("%sF2FS-fs : inject %s in %s of %pS\n", \
KERN_INFO, f2fs_fault_name[type], \ KERN_INFO, f2fs_fault_name[type], \
__func__, __builtin_return_address(0)) __func__, __builtin_return_address(0))
static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type) static inline bool time_to_inject(struct f2fs_sb_info *sbi, int type)

2
fs/pstore/inode.c
View file

@ -115,7 +115,7 @@ static int pstore_ftrace_seq_show(struct seq_file *s, void *v)
rec = (struct pstore_ftrace_record *)(ps->record->buf + data->off); rec = (struct pstore_ftrace_record *)(ps->record->buf + data->off);
seq_printf(s, "CPU:%d ts:%llu %08lx %08lx %pf <- %pF\n", seq_printf(s, "CPU:%d ts:%llu %08lx %08lx %ps <- %pS\n",
pstore_ftrace_decode_cpu(rec), pstore_ftrace_decode_cpu(rec),
pstore_ftrace_read_timestamp(rec), pstore_ftrace_read_timestamp(rec),
rec->ip, rec->parent_ip, (void *)rec->ip, rec->ip, rec->parent_ip, (void *)rec->ip,

4
include/linux/printk.h
View file

@ -347,7 +347,7 @@ extern int kptr_restrict;
#ifdef CONFIG_PRINTK #ifdef CONFIG_PRINTK
#define printk_once(fmt, ...) \ #define printk_once(fmt, ...) \
({ \ ({ \
static bool __print_once __read_mostly; \ static bool __section(.data.once) __print_once; \
bool __ret_print_once = !__print_once; \ bool __ret_print_once = !__print_once; \
\ \
if (!__print_once) { \ if (!__print_once) { \
@ -358,7 +358,7 @@ extern int kptr_restrict;
}) })
#define printk_deferred_once(fmt, ...) \ #define printk_deferred_once(fmt, ...) \
({ \ ({ \
static bool __print_once __read_mostly; \ static bool __section(.data.once) __print_once; \
bool __ret_print_once = !__print_once; \ bool __ret_print_once = !__print_once; \
\ \
if (!__print_once) { \ if (!__print_once) { \

2
include/trace/events/btrfs.h
View file

@ -1345,7 +1345,7 @@ DECLARE_EVENT_CLASS(btrfs__work,
__entry->normal_work = &work->normal_work; __entry->normal_work = &work->normal_work;
), ),
TP_printk_btrfs("work=%p (normal_work=%p) wq=%p func=%pf ordered_func=%p " TP_printk_btrfs("work=%p (normal_work=%p) wq=%p func=%ps ordered_func=%p "
"ordered_free=%p", "ordered_free=%p",
__entry->work, __entry->normal_work, __entry->wq, __entry->work, __entry->normal_work, __entry->wq,
__entry->func, __entry->ordered_func, __entry->ordered_free) __entry->func, __entry->ordered_func, __entry->ordered_free)

4
include/trace/events/cpuhp.h
View file

@ -30,7 +30,7 @@ TRACE_EVENT(cpuhp_enter,
__entry->fun = fun; __entry->fun = fun;
), ),
TP_printk("cpu: %04u target: %3d step: %3d (%pf)", TP_printk("cpu: %04u target: %3d step: %3d (%ps)",
__entry->cpu, __entry->target, __entry->idx, __entry->fun) __entry->cpu, __entry->target, __entry->idx, __entry->fun)
); );
@ -58,7 +58,7 @@ TRACE_EVENT(cpuhp_multi_enter,
__entry->fun = fun; __entry->fun = fun;
), ),
TP_printk("cpu: %04u target: %3d step: %3d (%pf)", TP_printk("cpu: %04u target: %3d step: %3d (%ps)",
__entry->cpu, __entry->target, __entry->idx, __entry->fun) __entry->cpu, __entry->target, __entry->idx, __entry->fun)
); );

2
include/trace/events/preemptirq.h
View file

@ -27,7 +27,7 @@ DECLARE_EVENT_CLASS(preemptirq_template,
__entry->parent_offs = (u32)(parent_ip - (unsigned long)_stext); __entry->parent_offs = (u32)(parent_ip - (unsigned long)_stext);
), ),
TP_printk("caller=%pF parent=%pF", TP_printk("caller=%pS parent=%pS",
(void *)((unsigned long)(_stext) + __entry->caller_offs), (void *)((unsigned long)(_stext) + __entry->caller_offs),
(void *)((unsigned long)(_stext) + __entry->parent_offs)) (void *)((unsigned long)(_stext) + __entry->parent_offs))
); );

4
include/trace/events/rcu.h
View file

@ -491,7 +491,7 @@ TRACE_EVENT(rcu_callback,
__entry->qlen = qlen; __entry->qlen = qlen;
), ),
TP_printk("%s rhp=%p func=%pf %ld/%ld", TP_printk("%s rhp=%p func=%ps %ld/%ld",
__entry->rcuname, __entry->rhp, __entry->func, __entry->rcuname, __entry->rhp, __entry->func,
__entry->qlen_lazy, __entry->qlen) __entry->qlen_lazy, __entry->qlen)
); );
@ -587,7 +587,7 @@ TRACE_EVENT(rcu_invoke_callback,
__entry->func = rhp->func; __entry->func = rhp->func;
), ),
TP_printk("%s rhp=%p func=%pf", TP_printk("%s rhp=%p func=%ps",
__entry->rcuname, __entry->rhp, __entry->func) __entry->rcuname, __entry->rhp, __entry->func)
); );

2
include/trace/events/sunrpc.h
View file

@ -146,7 +146,7 @@ DECLARE_EVENT_CLASS(rpc_task_running,
__entry->flags = task->tk_flags; __entry->flags = task->tk_flags;
), ),
TP_printk("task:%u@%d flags=%s runstate=%s status=%d action=%pf", TP_printk("task:%u@%d flags=%s runstate=%s status=%d action=%ps",
__entry->task_id, __entry->client_id, __entry->task_id, __entry->client_id,
rpc_show_task_flags(__entry->flags), rpc_show_task_flags(__entry->flags),
rpc_show_runstate(__entry->runstate), rpc_show_runstate(__entry->runstate),

4
include/trace/events/vmscan.h
View file

@ -226,7 +226,7 @@ TRACE_EVENT(mm_shrink_slab_start,
__entry->priority = priority; __entry->priority = priority;
), ),
TP_printk("%pF %p: nid: %d objects to shrink %ld gfp_flags %s cache items %ld delta %lld total_scan %ld priority %d", TP_printk("%pS %p: nid: %d objects to shrink %ld gfp_flags %s cache items %ld delta %lld total_scan %ld priority %d",
__entry->shrink, __entry->shrink,
__entry->shr, __entry->shr,
__entry->nid, __entry->nid,
@ -265,7 +265,7 @@ TRACE_EVENT(mm_shrink_slab_end,
__entry->total_scan = total_scan; __entry->total_scan = total_scan;
), ),
TP_printk("%pF %p: nid: %d unused scan count %ld new scan count %ld total_scan %ld last shrinker return val %d", TP_printk("%pS %p: nid: %d unused scan count %ld new scan count %ld total_scan %ld last shrinker return val %d",
__entry->shrink, __entry->shrink,
__entry->shr, __entry->shr,
__entry->nid, __entry->nid,

4
include/trace/events/workqueue.h
View file

@ -60,7 +60,7 @@ TRACE_EVENT(workqueue_queue_work,
__entry->cpu = pwq->pool->cpu; __entry->cpu = pwq->pool->cpu;
), ),
TP_printk("work struct=%p function=%pf workqueue=%p req_cpu=%u cpu=%u", TP_printk("work struct=%p function=%ps workqueue=%p req_cpu=%u cpu=%u",
__entry->work, __entry->function, __entry->workqueue, __entry->work, __entry->function, __entry->workqueue,
__entry->req_cpu, __entry->cpu) __entry->req_cpu, __entry->cpu)
); );
@ -102,7 +102,7 @@ TRACE_EVENT(workqueue_execute_start,
__entry->function = work->func; __entry->function = work->func;
), ),
TP_printk("work struct %p: function %pf", __entry->work, __entry->function) TP_printk("work struct %p: function %ps", __entry->work, __entry->function)
); );
/** /**

2
include/trace/events/xen.h
View file

@ -73,7 +73,7 @@ TRACE_EVENT(xen_mc_callback,
__entry->fn = fn; __entry->fn = fn;
__entry->data = data; __entry->data = data;
), ),
TP_printk("callback %pf, data %p", TP_printk("callback %ps, data %p",
__entry->fn, __entry->data) __entry->fn, __entry->data)
); );

6
init/main.c
View file

@ -846,7 +846,7 @@ trace_initcall_start_cb(void *data, initcall_t fn)
{ {
ktime_t *calltime = (ktime_t *)data; ktime_t *calltime = (ktime_t *)data;
printk(KERN_DEBUG "calling %pF @ %i\n", fn, task_pid_nr(current)); printk(KERN_DEBUG "calling %pS @ %i\n", fn, task_pid_nr(current));
*calltime = ktime_get(); *calltime = ktime_get();
} }
@ -860,7 +860,7 @@ trace_initcall_finish_cb(void *data, initcall_t fn, int ret)
rettime = ktime_get(); rettime = ktime_get();
delta = ktime_sub(rettime, *calltime); delta = ktime_sub(rettime, *calltime);
duration = (unsigned long long) ktime_to_ns(delta) >> 10; duration = (unsigned long long) ktime_to_ns(delta) >> 10;
printk(KERN_DEBUG "initcall %pF returned %d after %lld usecs\n", printk(KERN_DEBUG "initcall %pS returned %d after %lld usecs\n",
fn, ret, duration); fn, ret, duration);
} }
@ -917,7 +917,7 @@ int __init_or_module do_one_initcall(initcall_t fn)
strlcat(msgbuf, "disabled interrupts ", sizeof(msgbuf)); strlcat(msgbuf, "disabled interrupts ", sizeof(msgbuf));
local_irq_enable(); local_irq_enable();
} }
WARN(msgbuf[0], "initcall %pF returned with %s\n", fn, msgbuf); WARN(msgbuf[0], "initcall %pS returned with %s\n", fn, msgbuf);
add_latent_entropy(); add_latent_entropy();
return ret; return ret;

4
kernel/async.c
View file

@ -119,7 +119,7 @@ static void async_run_entry_fn(struct work_struct *work)
/* 1) run (and print duration) */ /* 1) run (and print duration) */
if (initcall_debug && system_state < SYSTEM_RUNNING) { if (initcall_debug && system_state < SYSTEM_RUNNING) {
pr_debug("calling %lli_%pF @ %i\n", pr_debug("calling %lli_%pS @ %i\n",
(long long)entry->cookie, (long long)entry->cookie,
entry->func, task_pid_nr(current)); entry->func, task_pid_nr(current));
calltime = ktime_get(); calltime = ktime_get();
@ -128,7 +128,7 @@ static void async_run_entry_fn(struct work_struct *work)
if (initcall_debug && system_state < SYSTEM_RUNNING) { if (initcall_debug && system_state < SYSTEM_RUNNING) {
rettime = ktime_get(); rettime = ktime_get();
delta = ktime_sub(rettime, calltime); delta = ktime_sub(rettime, calltime);
pr_debug("initcall %lli_%pF returned 0 after %lld usecs\n", pr_debug("initcall %lli_%pS returned 0 after %lld usecs\n",
(long long)entry->cookie, (long long)entry->cookie,
entry->func, entry->func,
(long long)ktime_to_ns(delta) >> 10); (long long)ktime_to_ns(delta) >> 10);

2
kernel/events/uprobes.c
View file

@ -2028,7 +2028,7 @@ static void handler_chain(struct uprobe *uprobe, struct pt_regs *regs)
if (uc->handler) { if (uc->handler) {
rc = uc->handler(uc, regs); rc = uc->handler(uc, regs);
WARN(rc & ~UPROBE_HANDLER_MASK, WARN(rc & ~UPROBE_HANDLER_MASK,
"bad rc=0x%x from %pf()\n", rc, uc->handler); "bad rc=0x%x from %ps()\n", rc, uc->handler);
} }
if (uc->ret_handler) if (uc->ret_handler)

2
kernel/fail_function.c
View file

@ -210,7 +210,7 @@ static int fei_seq_show(struct seq_file *m, void *v)
{ {
struct fei_attr *attr = list_entry(v, struct fei_attr, list); struct fei_attr *attr = list_entry(v, struct fei_attr, list);
seq_printf(m, "%pf\n", attr->kp.addr); seq_printf(m, "%ps\n", attr->kp.addr);
return 0; return 0;
} }

2
kernel/irq/debugfs.c
View file

@ -152,7 +152,7 @@ static int irq_debug_show(struct seq_file *m, void *p)
raw_spin_lock_irq(&desc->lock); raw_spin_lock_irq(&desc->lock);
data = irq_desc_get_irq_data(desc); data = irq_desc_get_irq_data(desc);
seq_printf(m, "handler: %pf\n", desc->handle_irq); seq_printf(m, "handler: %ps\n", desc->handle_irq);
seq_printf(m, "device: %s\n", desc->dev_name); seq_printf(m, "device: %s\n", desc->dev_name);
seq_printf(m, "status: 0x%08x\n", desc->status_use_accessors); seq_printf(m, "status: 0x%08x\n", desc->status_use_accessors);
irq_debug_show_bits(m, 0, desc->status_use_accessors, irqdesc_states, irq_debug_show_bits(m, 0, desc->status_use_accessors, irqdesc_states,

2
kernel/irq/handle.c
View file

@ -149,7 +149,7 @@ irqreturn_t __handle_irq_event_percpu(struct irq_desc *desc, unsigned int *flags
res = action->handler(irq, action->dev_id); res = action->handler(irq, action->dev_id);
trace_irq_handler_exit(irq, action, res); trace_irq_handler_exit(irq, action, res);
if (WARN_ONCE(!irqs_disabled(),"irq %u handler %pF enabled interrupts\n", if (WARN_ONCE(!irqs_disabled(),"irq %u handler %pS enabled interrupts\n",
irq, action->handler)) irq, action->handler))
local_irq_disable(); local_irq_disable();

2
kernel/irq/manage.c
View file

@ -781,7 +781,7 @@ int __irq_set_trigger(struct irq_desc *desc, unsigned long flags)
ret = 0; ret = 0;
break; break;
default: default:
pr_err("Setting trigger mode %lu for irq %u failed (%pF)\n", pr_err("Setting trigger mode %lu for irq %u failed (%pS)\n",
flags, irq_desc_get_irq(desc), chip->irq_set_type); flags, irq_desc_get_irq(desc), chip->irq_set_type);
} }
if (unmask) if (unmask)

4
kernel/irq/spurious.c
View file

@ -212,9 +212,9 @@ static void __report_bad_irq(struct irq_desc *desc, irqreturn_t action_ret)
*/ */
raw_spin_lock_irqsave(&desc->lock, flags); raw_spin_lock_irqsave(&desc->lock, flags);
for_each_action_of_desc(desc, action) { for_each_action_of_desc(desc, action) {
printk(KERN_ERR "[<%p>] %pf", action->handler, action->handler); printk(KERN_ERR "[<%p>] %ps", action->handler, action->handler);
if (action->thread_fn) if (action->thread_fn)
printk(KERN_CONT " threaded [<%p>] %pf", printk(KERN_CONT " threaded [<%p>] %ps",
action->thread_fn, action->thread_fn); action->thread_fn, action->thread_fn);
printk(KERN_CONT "\n"); printk(KERN_CONT "\n");
} }

2
kernel/rcu/tree.c
View file

@ -2392,7 +2392,7 @@ __call_rcu(struct rcu_head *head, rcu_callback_t func, int cpu, bool lazy)
* Use rcu:rcu_callback trace event to find the previous * Use rcu:rcu_callback trace event to find the previous
* time callback was passed to __call_rcu(). * time callback was passed to __call_rcu().
*/ */
WARN_ONCE(1, "__call_rcu(): Double-freed CB %p->%pF()!!!\n", WARN_ONCE(1, "__call_rcu(): Double-freed CB %p->%pS()!!!\n",
head, head->func); head, head->func);
WRITE_ONCE(head->func, rcu_leak_callback); WRITE_ONCE(head->func, rcu_leak_callback);
return; return;

2
kernel/stop_machine.c
View file

@ -513,7 +513,7 @@ repeat:
} }
preempt_count_dec(); preempt_count_dec();
WARN_ONCE(preempt_count(), WARN_ONCE(preempt_count(),
"cpu_stop: %pf(%p) leaked preempt count\n", fn, arg); "cpu_stop: %ps(%p) leaked preempt count\n", fn, arg);
goto repeat; goto repeat;
} }
} }

2
kernel/time/sched_clock.c
View file

@ -231,7 +231,7 @@ sched_clock_register(u64 (*read)(void), int bits, unsigned long rate)
if (irqtime > 0 || (irqtime == -1 && rate >= 1000000)) if (irqtime > 0 || (irqtime == -1 && rate >= 1000000))
enable_sched_clock_irqtime(); enable_sched_clock_irqtime();
pr_debug("Registered %pF as sched_clock source\n", read); pr_debug("Registered %pS as sched_clock source\n", read);
} }
void __init generic_sched_clock_init(void) void __init generic_sched_clock_init(void)

2
kernel/time/timer.c
View file

@ -1325,7 +1325,7 @@ static void call_timer_fn(struct timer_list *timer,
lock_map_release(&lockdep_map); lock_map_release(&lockdep_map);
if (count != preempt_count()) { if (count != preempt_count()) {
WARN_ONCE(1, "timer: %pF preempt leak: %08x -> %08x\n", WARN_ONCE(1, "timer: %pS preempt leak: %08x -> %08x\n",
fn, count, preempt_count()); fn, count, preempt_count());
/* /*
* Restore the preempt count. That gives us a decent * Restore the preempt count. That gives us a decent

12
kernel/workqueue.c
View file

@ -2271,7 +2271,7 @@ __acquires(&pool->lock)
if (unlikely(in_atomic() || lockdep_depth(current) > 0)) { if (unlikely(in_atomic() || lockdep_depth(current) > 0)) {
pr_err("BUG: workqueue leaked lock or atomic: %s/0x%08x/%d\n" pr_err("BUG: workqueue leaked lock or atomic: %s/0x%08x/%d\n"
" last function: %pf\n", " last function: %ps\n",
current->comm, preempt_count(), task_pid_nr(current), current->comm, preempt_count(), task_pid_nr(current),
worker->current_func); worker->current_func);
debug_show_held_locks(current); debug_show_held_locks(current);
@ -2590,11 +2590,11 @@ static void check_flush_dependency(struct workqueue_struct *target_wq,
worker = current_wq_worker(); worker = current_wq_worker();
WARN_ONCE(current->flags & PF_MEMALLOC, WARN_ONCE(current->flags & PF_MEMALLOC,
"workqueue: PF_MEMALLOC task %d(%s) is flushing !WQ_MEM_RECLAIM %s:%pf", "workqueue: PF_MEMALLOC task %d(%s) is flushing !WQ_MEM_RECLAIM %s:%ps",
current->pid, current->comm, target_wq->name, target_func); current->pid, current->comm, target_wq->name, target_func);
WARN_ONCE(worker && ((worker->current_pwq->wq->flags & WARN_ONCE(worker && ((worker->current_pwq->wq->flags &
(WQ_MEM_RECLAIM | __WQ_LEGACY)) == WQ_MEM_RECLAIM), (WQ_MEM_RECLAIM | __WQ_LEGACY)) == WQ_MEM_RECLAIM),
"workqueue: WQ_MEM_RECLAIM %s:%pf is flushing !WQ_MEM_RECLAIM %s:%pf", "workqueue: WQ_MEM_RECLAIM %s:%ps is flushing !WQ_MEM_RECLAIM %s:%ps",
worker->current_pwq->wq->name, worker->current_func, worker->current_pwq->wq->name, worker->current_func,
target_wq->name, target_func); target_wq->name, target_func);
} }
@ -4581,7 +4581,7 @@ void print_worker_info(const char *log_lvl, struct task_struct *task)
probe_kernel_read(desc, worker->desc, sizeof(desc) - 1); probe_kernel_read(desc, worker->desc, sizeof(desc) - 1);
if (fn || name[0] || desc[0]) { if (fn || name[0] || desc[0]) {
printk("%sWorkqueue: %s %pf", log_lvl, name, fn); printk("%sWorkqueue: %s %ps", log_lvl, name, fn);
if (strcmp(name, desc)) if (strcmp(name, desc))
pr_cont(" (%s)", desc); pr_cont(" (%s)", desc);
pr_cont("\n"); pr_cont("\n");
@ -4606,7 +4606,7 @@ static void pr_cont_work(bool comma, struct work_struct *work)
pr_cont("%s BAR(%d)", comma ? "," : "", pr_cont("%s BAR(%d)", comma ? "," : "",
task_pid_nr(barr->task)); task_pid_nr(barr->task));
} else { } else {
pr_cont("%s %pf", comma ? "," : "", work->func); pr_cont("%s %ps", comma ? "," : "", work->func);
} }
} }
@ -4638,7 +4638,7 @@ static void show_pwq(struct pool_workqueue *pwq)
if (worker->current_pwq != pwq) if (worker->current_pwq != pwq)
continue; continue;
pr_cont("%s %d%s:%pf", comma ? "," : "", pr_cont("%s %d%s:%ps", comma ? "," : "",
task_pid_nr(worker->task), task_pid_nr(worker->task),
worker == pwq->wq->rescuer ? "(RESCUER)" : "", worker == pwq->wq->rescuer ? "(RESCUER)" : "",
worker->current_func); worker->current_func);

2
lib/error-inject.c
View file

@ -189,7 +189,7 @@ static int ei_seq_show(struct seq_file *m, void *v)
{ {
struct ei_entry *ent = list_entry(v, struct ei_entry, list); struct ei_entry *ent = list_entry(v, struct ei_entry, list);
seq_printf(m, "%pf\t%s\n", (void *)ent->start_addr, seq_printf(m, "%ps\t%s\n", (void *)ent->start_addr,
error_type_string(ent->etype)); error_type_string(ent->etype));
return 0; return 0;
} }

4
lib/percpu-refcount.c
View file

@ -151,7 +151,7 @@ static void percpu_ref_switch_to_atomic_rcu(struct rcu_head *rcu)
atomic_long_add((long)count - PERCPU_COUNT_BIAS, &ref->count); atomic_long_add((long)count - PERCPU_COUNT_BIAS, &ref->count);
WARN_ONCE(atomic_long_read(&ref->count) <= 0, WARN_ONCE(atomic_long_read(&ref->count) <= 0,
"percpu ref (%pf) <= 0 (%ld) after switching to atomic", "percpu ref (%ps) <= 0 (%ld) after switching to atomic",
ref->release, atomic_long_read(&ref->count)); ref->release, atomic_long_read(&ref->count));
/* @ref is viewed as dead on all CPUs, send out switch confirmation */ /* @ref is viewed as dead on all CPUs, send out switch confirmation */
@ -333,7 +333,7 @@ void percpu_ref_kill_and_confirm(struct percpu_ref *ref,
spin_lock_irqsave(&percpu_ref_switch_lock, flags); spin_lock_irqsave(&percpu_ref_switch_lock, flags);
WARN_ONCE(ref->percpu_count_ptr & __PERCPU_REF_DEAD, WARN_ONCE(ref->percpu_count_ptr & __PERCPU_REF_DEAD,
"%s called more than once on %pf!", __func__, ref->release); "%s called more than once on %ps!", __func__, ref->release);
ref->percpu_count_ptr |= __PERCPU_REF_DEAD; ref->percpu_count_ptr |= __PERCPU_REF_DEAD;
__percpu_ref_switch_mode(ref, confirm_kill); __percpu_ref_switch_mode(ref, confirm_kill);

29
lib/test_printf.c
View file

@ -241,6 +241,7 @@ plain_format(void)
#define PTR ((void *)0x456789ab) #define PTR ((void *)0x456789ab)
#define PTR_STR "456789ab" #define PTR_STR "456789ab"
#define PTR_VAL_NO_CRNG "(ptrval)" #define PTR_VAL_NO_CRNG "(ptrval)"
#define ZEROS ""
static int __init static int __init
plain_format(void) plain_format(void)
@ -270,7 +271,6 @@ plain_hash_to_buffer(const void *p, char *buf, size_t len)
return 0; return 0;
} }
static int __init static int __init
plain_hash(void) plain_hash(void)
{ {
@ -327,6 +327,24 @@ test_hashed(const char *fmt, const void *p)
test(buf, fmt, p); test(buf, fmt, p);
} }
static void __init
null_pointer(void)
{
test_hashed("%p", NULL);
test(ZEROS "00000000", "%px", NULL);
test("(null)", "%pE", NULL);
}
#define PTR_INVALID ((void *)0x000000ab)
static void __init
invalid_pointer(void)
{
test_hashed("%p", PTR_INVALID);
test(ZEROS "000000ab", "%px", PTR_INVALID);
test("(efault)", "%pE", PTR_INVALID);
}
static void __init static void __init
symbol_ptr(void) symbol_ptr(void)
{ {
@ -464,8 +482,7 @@ struct_rtc_time(void)
.tm_year = 118, .tm_year = 118,
}; };
test_hashed("%pt", &tm); test("(%ptR?)", "%pt", &tm);
test("2018-11-26T05:35:43", "%ptR", &tm); test("2018-11-26T05:35:43", "%ptR", &tm);
test("0118-10-26T05:35:43", "%ptRr", &tm); test("0118-10-26T05:35:43", "%ptRr", &tm);
test("05:35:43|2018-11-26", "%ptRt|%ptRd", &tm, &tm); test("05:35:43|2018-11-26", "%ptRt|%ptRd", &tm, &tm);
@ -483,14 +500,14 @@ static void __init
large_bitmap(void) large_bitmap(void)
{ {
const int nbits = 1 << 16; const int nbits = 1 << 16;
unsigned long *bits = kcalloc(BITS_TO_LONGS(nbits), sizeof(long), GFP_KERNEL); unsigned long *bits = bitmap_zalloc(nbits, GFP_KERNEL);
if (!bits) if (!bits)
return; return;
bitmap_set(bits, 1, 20); bitmap_set(bits, 1, 20);
bitmap_set(bits, 60000, 15); bitmap_set(bits, 60000, 15);
test("1-20,60000-60014", "%*pbl", nbits, bits); test("1-20,60000-60014", "%*pbl", nbits, bits);
kfree(bits); bitmap_free(bits);
} }
static void __init static void __init
@ -574,6 +591,8 @@ static void __init
test_pointer(void) test_pointer(void)
{ {
plain(); plain();
null_pointer();
invalid_pointer();
symbol_ptr(); symbol_ptr();
kernel_ptr(); kernel_ptr();
struct_resource(); struct_resource();

431
lib/vsprintf.c
View file

@ -593,15 +593,13 @@ char *widen_string(char *buf, int n, char *end, struct printf_spec spec)
return buf; return buf;
} }
static noinline_for_stack /* Handle string from a well known address. */
char *string(char *buf, char *end, const char *s, struct printf_spec spec) static char *string_nocheck(char *buf, char *end, const char *s,
struct printf_spec spec)
{ {
int len = 0; int len = 0;
size_t lim = spec.precision; size_t lim = spec.precision;
if ((unsigned long)s < PAGE_SIZE)
s = "(null)";
while (lim--) { while (lim--) {
char c = *s++; char c = *s++;
if (!c) if (!c)
@ -614,9 +612,67 @@ char *string(char *buf, char *end, const char *s, struct printf_spec spec)
return widen_string(buf, len, end, spec); return widen_string(buf, len, end, spec);
} }
/* Be careful: error messages must fit into the given buffer. */
static char *error_string(char *buf, char *end, const char *s,
struct printf_spec spec)
{
/*
* Hard limit to avoid a completely insane messages. It actually
* works pretty well because most error messages are in
* the many pointer format modifiers.
*/
if (spec.precision == -1)
spec.precision = 2 * sizeof(void *);
return string_nocheck(buf, end, s, spec);
}
/*
* This is not a fool-proof test. 99% of the time that this will fault is
* due to a bad pointer, not one that crosses into bad memory. Just test
* the address to make sure it doesn't fault due to a poorly added printk
* during debugging.
*/
static const char *check_pointer_msg(const void *ptr)
{
char byte;
if (!ptr)
return "(null)";
if (probe_kernel_address(ptr, byte))
return "(efault)";
return NULL;
}
static int check_pointer(char **buf, char *end, const void *ptr,
struct printf_spec spec)
{
const char *err_msg;
err_msg = check_pointer_msg(ptr);
if (err_msg) {
*buf = error_string(*buf, end, err_msg, spec);
return -EFAULT;
}
return 0;
}
static noinline_for_stack static noinline_for_stack
char *pointer_string(char *buf, char *end, const void *ptr, char *string(char *buf, char *end, const char *s,
struct printf_spec spec) struct printf_spec spec)
{
if (check_pointer(&buf, end, s, spec))
return buf;
return string_nocheck(buf, end, s, spec);
}
static char *pointer_string(char *buf, char *end,
const void *ptr,
struct printf_spec spec)
{ {
spec.base = 16; spec.base = 16;
spec.flags |= SMALL; spec.flags |= SMALL;
@ -701,7 +757,7 @@ static char *ptr_to_id(char *buf, char *end, const void *ptr,
if (static_branch_unlikely(&not_filled_random_ptr_key)) { if (static_branch_unlikely(&not_filled_random_ptr_key)) {
spec.field_width = 2 * sizeof(ptr); spec.field_width = 2 * sizeof(ptr);
/* string length must be less than default_width */ /* string length must be less than default_width */
return string(buf, end, str, spec); return error_string(buf, end, str, spec);
} }
#ifdef CONFIG_64BIT #ifdef CONFIG_64BIT
@ -717,6 +773,55 @@ static char *ptr_to_id(char *buf, char *end, const void *ptr,
return pointer_string(buf, end, (const void *)hashval, spec); return pointer_string(buf, end, (const void *)hashval, spec);
} }
int kptr_restrict __read_mostly;
static noinline_for_stack
char *restricted_pointer(char *buf, char *end, const void *ptr,
struct printf_spec spec)
{
switch (kptr_restrict) {
case 0:
/* Handle as %p, hash and do _not_ leak addresses. */
return ptr_to_id(buf, end, ptr, spec);
case 1: {
const struct cred *cred;
/*
* kptr_restrict==1 cannot be used in IRQ context
* because its test for CAP_SYSLOG would be meaningless.
*/
if (in_irq() || in_serving_softirq() || in_nmi()) {
if (spec.field_width == -1)
spec.field_width = 2 * sizeof(ptr);
return error_string(buf, end, "pK-error", spec);
}
/*
* Only print the real pointer value if the current
* process has CAP_SYSLOG and is running with the
* same credentials it started with. This is because
* access to files is checked at open() time, but %pK
* checks permission at read() time. We don't want to
* leak pointer values if a binary opens a file using
* %pK and then elevates privileges before reading it.
*/
cred = current_cred();
if (!has_capability_noaudit(current, CAP_SYSLOG) ||
!uid_eq(cred->euid, cred->uid) ||
!gid_eq(cred->egid, cred->gid))
ptr = NULL;
break;
}
case 2:
default:
/* Always print 0's for %pK */
ptr = NULL;
break;
}
return pointer_string(buf, end, ptr, spec);
}
static noinline_for_stack static noinline_for_stack
char *dentry_name(char *buf, char *end, const struct dentry *d, struct printf_spec spec, char *dentry_name(char *buf, char *end, const struct dentry *d, struct printf_spec spec,
const char *fmt) const char *fmt)
@ -736,6 +841,11 @@ char *dentry_name(char *buf, char *end, const struct dentry *d, struct printf_sp
rcu_read_lock(); rcu_read_lock();
for (i = 0; i < depth; i++, d = p) { for (i = 0; i < depth; i++, d = p) {
if (check_pointer(&buf, end, d, spec)) {
rcu_read_unlock();
return buf;
}
p = READ_ONCE(d->d_parent); p = READ_ONCE(d->d_parent);
array[i] = READ_ONCE(d->d_name.name); array[i] = READ_ONCE(d->d_name.name);
if (p == d) { if (p == d) {
@ -766,8 +876,12 @@ static noinline_for_stack
char *bdev_name(char *buf, char *end, struct block_device *bdev, char *bdev_name(char *buf, char *end, struct block_device *bdev,
struct printf_spec spec, const char *fmt) struct printf_spec spec, const char *fmt)
{ {
struct gendisk *hd = bdev->bd_disk; struct gendisk *hd;
if (check_pointer(&buf, end, bdev, spec))
return buf;
hd = bdev->bd_disk;
buf = string(buf, end, hd->disk_name, spec); buf = string(buf, end, hd->disk_name, spec);
if (bdev->bd_part->partno) { if (bdev->bd_part->partno) {
if (isdigit(hd->disk_name[strlen(hd->disk_name)-1])) { if (isdigit(hd->disk_name[strlen(hd->disk_name)-1])) {
@ -802,7 +916,7 @@ char *symbol_string(char *buf, char *end, void *ptr,
else else
sprint_symbol_no_offset(sym, value); sprint_symbol_no_offset(sym, value);
return string(buf, end, sym, spec); return string_nocheck(buf, end, sym, spec);
#else #else
return special_hex_number(buf, end, value, sizeof(void *)); return special_hex_number(buf, end, value, sizeof(void *));
#endif #endif
@ -886,29 +1000,32 @@ char *resource_string(char *buf, char *end, struct resource *res,
int decode = (fmt[0] == 'R') ? 1 : 0; int decode = (fmt[0] == 'R') ? 1 : 0;
const struct printf_spec *specp; const struct printf_spec *specp;
if (check_pointer(&buf, end, res, spec))
return buf;
*p++ = '['; *p++ = '[';
if (res->flags & IORESOURCE_IO) { if (res->flags & IORESOURCE_IO) {
p = string(p, pend, "io ", str_spec); p = string_nocheck(p, pend, "io ", str_spec);
specp = &io_spec; specp = &io_spec;
} else if (res->flags & IORESOURCE_MEM) { } else if (res->flags & IORESOURCE_MEM) {
p = string(p, pend, "mem ", str_spec); p = string_nocheck(p, pend, "mem ", str_spec);
specp = &mem_spec; specp = &mem_spec;
} else if (res->flags & IORESOURCE_IRQ) { } else if (res->flags & IORESOURCE_IRQ) {
p = string(p, pend, "irq ", str_spec); p = string_nocheck(p, pend, "irq ", str_spec);
specp = &default_dec_spec; specp = &default_dec_spec;
} else if (res->flags & IORESOURCE_DMA) { } else if (res->flags & IORESOURCE_DMA) {
p = string(p, pend, "dma ", str_spec); p = string_nocheck(p, pend, "dma ", str_spec);
specp = &default_dec_spec; specp = &default_dec_spec;
} else if (res->flags & IORESOURCE_BUS) { } else if (res->flags & IORESOURCE_BUS) {
p = string(p, pend, "bus ", str_spec); p = string_nocheck(p, pend, "bus ", str_spec);
specp = &bus_spec; specp = &bus_spec;
} else { } else {
p = string(p, pend, "??? ", str_spec); p = string_nocheck(p, pend, "??? ", str_spec);
specp = &mem_spec; specp = &mem_spec;
decode = 0; decode = 0;
} }
if (decode && res->flags & IORESOURCE_UNSET) { if (decode && res->flags & IORESOURCE_UNSET) {
p = string(p, pend, "size ", str_spec); p = string_nocheck(p, pend, "size ", str_spec);
p = number(p, pend, resource_size(res), *specp); p = number(p, pend, resource_size(res), *specp);
} else { } else {
p = number(p, pend, res->start, *specp); p = number(p, pend, res->start, *specp);
@ -919,21 +1036,21 @@ char *resource_string(char *buf, char *end, struct resource *res,
} }
if (decode) { if (decode) {
if (res->flags & IORESOURCE_MEM_64) if (res->flags & IORESOURCE_MEM_64)
p = string(p, pend, " 64bit", str_spec); p = string_nocheck(p, pend, " 64bit", str_spec);
if (res->flags & IORESOURCE_PREFETCH) if (res->flags & IORESOURCE_PREFETCH)
p = string(p, pend, " pref", str_spec); p = string_nocheck(p, pend, " pref", str_spec);
if (res->flags & IORESOURCE_WINDOW) if (res->flags & IORESOURCE_WINDOW)
p = string(p, pend, " window", str_spec); p = string_nocheck(p, pend, " window", str_spec);
if (res->flags & IORESOURCE_DISABLED) if (res->flags & IORESOURCE_DISABLED)
p = string(p, pend, " disabled", str_spec); p = string_nocheck(p, pend, " disabled", str_spec);
} else { } else {
p = string(p, pend, " flags ", str_spec); p = string_nocheck(p, pend, " flags ", str_spec);
p = number(p, pend, res->flags, default_flag_spec); p = number(p, pend, res->flags, default_flag_spec);
} }
*p++ = ']'; *p++ = ']';
*p = '\0'; *p = '\0';
return string(buf, end, sym, spec); return string_nocheck(buf, end, sym, spec);
} }
static noinline_for_stack static noinline_for_stack
@ -948,9 +1065,8 @@ char *hex_string(char *buf, char *end, u8 *addr, struct printf_spec spec,
/* nothing to print */ /* nothing to print */
return buf; return buf;
if (ZERO_OR_NULL_PTR(addr)) if (check_pointer(&buf, end, addr, spec))
/* NULL pointer */ return buf;
return string(buf, end, NULL, spec);
switch (fmt[1]) { switch (fmt[1]) {
case 'C': case 'C':
@ -997,6 +1113,9 @@ char *bitmap_string(char *buf, char *end, unsigned long *bitmap,
int i, chunksz; int i, chunksz;
bool first = true; bool first = true;
if (check_pointer(&buf, end, bitmap, spec))
return buf;
/* reused to print numbers */ /* reused to print numbers */
spec = (struct printf_spec){ .flags = SMALL | ZEROPAD, .base = 16 }; spec = (struct printf_spec){ .flags = SMALL | ZEROPAD, .base = 16 };
@ -1038,6 +1157,9 @@ char *bitmap_list_string(char *buf, char *end, unsigned long *bitmap,
int cur, rbot, rtop; int cur, rbot, rtop;
bool first = true; bool first = true;
if (check_pointer(&buf, end, bitmap, spec))
return buf;
rbot = cur = find_first_bit(bitmap, nr_bits); rbot = cur = find_first_bit(bitmap, nr_bits);
while (cur < nr_bits) { while (cur < nr_bits) {
rtop = cur; rtop = cur;
@ -1076,6 +1198,9 @@ char *mac_address_string(char *buf, char *end, u8 *addr,
char separator; char separator;
bool reversed = false; bool reversed = false;
if (check_pointer(&buf, end, addr, spec))
return buf;
switch (fmt[1]) { switch (fmt[1]) {
case 'F': case 'F':
separator = '-'; separator = '-';
@ -1101,7 +1226,7 @@ char *mac_address_string(char *buf, char *end, u8 *addr,
} }
*p = '\0'; *p = '\0';
return string(buf, end, mac_addr, spec); return string_nocheck(buf, end, mac_addr, spec);
} }
static noinline_for_stack static noinline_for_stack
@ -1264,7 +1389,7 @@ char *ip6_addr_string(char *buf, char *end, const u8 *addr,
else else
ip6_string(ip6_addr, addr, fmt); ip6_string(ip6_addr, addr, fmt);
return string(buf, end, ip6_addr, spec); return string_nocheck(buf, end, ip6_addr, spec);
} }
static noinline_for_stack static noinline_for_stack
@ -1275,7 +1400,7 @@ char *ip4_addr_string(char *buf, char *end, const u8 *addr,
ip4_string(ip4_addr, addr, fmt); ip4_string(ip4_addr, addr, fmt);
return string(buf, end, ip4_addr, spec); return string_nocheck(buf, end, ip4_addr, spec);
} }
static noinline_for_stack static noinline_for_stack
@ -1337,7 +1462,7 @@ char *ip6_addr_string_sa(char *buf, char *end, const struct sockaddr_in6 *sa,
} }
*p = '\0'; *p = '\0';
return string(buf, end, ip6_addr, spec); return string_nocheck(buf, end, ip6_addr, spec);
} }
static noinline_for_stack static noinline_for_stack
@ -1372,7 +1497,42 @@ char *ip4_addr_string_sa(char *buf, char *end, const struct sockaddr_in *sa,
} }
*p = '\0'; *p = '\0';
return string(buf, end, ip4_addr, spec); return string_nocheck(buf, end, ip4_addr, spec);
}
static noinline_for_stack
char *ip_addr_string(char *buf, char *end, const void *ptr,
struct printf_spec spec, const char *fmt)
{
char *err_fmt_msg;
if (check_pointer(&buf, end, ptr, spec))
return buf;
switch (fmt[1]) {
case '6':
return ip6_addr_string(buf, end, ptr, spec, fmt);
case '4':
return ip4_addr_string(buf, end, ptr, spec, fmt);
case 'S': {
const union {
struct sockaddr raw;
struct sockaddr_in v4;
struct sockaddr_in6 v6;
} *sa = ptr;
switch (sa->raw.sa_family) {
case AF_INET:
return ip4_addr_string_sa(buf, end, &sa->v4, spec, fmt);
case AF_INET6:
return ip6_addr_string_sa(buf, end, &sa->v6, spec, fmt);
default:
return error_string(buf, end, "(einval)", spec);
}}
}
err_fmt_msg = fmt[0] == 'i' ? "(%pi?)" : "(%pI?)";
return error_string(buf, end, err_fmt_msg, spec);
} }
static noinline_for_stack static noinline_for_stack
@ -1387,9 +1547,8 @@ char *escaped_string(char *buf, char *end, u8 *addr, struct printf_spec spec,
if (spec.field_width == 0) if (spec.field_width == 0)
return buf; /* nothing to print */ return buf; /* nothing to print */
if (ZERO_OR_NULL_PTR(addr)) if (check_pointer(&buf, end, addr, spec))
return string(buf, end, NULL, spec); /* NULL pointer */ return buf;
do { do {
switch (fmt[count++]) { switch (fmt[count++]) {
@ -1435,6 +1594,21 @@ char *escaped_string(char *buf, char *end, u8 *addr, struct printf_spec spec,
return buf; return buf;
} }
static char *va_format(char *buf, char *end, struct va_format *va_fmt,
struct printf_spec spec, const char *fmt)
{
va_list va;
if (check_pointer(&buf, end, va_fmt, spec))
return buf;
va_copy(va, *va_fmt->va);
buf += vsnprintf(buf, end > buf ? end - buf : 0, va_fmt->fmt, va);
va_end(va);
return buf;
}
static noinline_for_stack static noinline_for_stack
char *uuid_string(char *buf, char *end, const u8 *addr, char *uuid_string(char *buf, char *end, const u8 *addr,
struct printf_spec spec, const char *fmt) struct printf_spec spec, const char *fmt)
@ -1445,6 +1619,9 @@ char *uuid_string(char *buf, char *end, const u8 *addr,
const u8 *index = uuid_index; const u8 *index = uuid_index;
bool uc = false; bool uc = false;
if (check_pointer(&buf, end, addr, spec))
return buf;
switch (*(++fmt)) { switch (*(++fmt)) {
case 'L': case 'L':
uc = true; /* fall-through */ uc = true; /* fall-through */
@ -1473,56 +1650,7 @@ char *uuid_string(char *buf, char *end, const u8 *addr,
*p = 0; *p = 0;
return string(buf, end, uuid, spec); return string_nocheck(buf, end, uuid, spec);
}
int kptr_restrict __read_mostly;
static noinline_for_stack
char *restricted_pointer(char *buf, char *end, const void *ptr,
struct printf_spec spec)
{
switch (kptr_restrict) {
case 0:
/* Always print %pK values */
break;
case 1: {
const struct cred *cred;
/*
* kptr_restrict==1 cannot be used in IRQ context
* because its test for CAP_SYSLOG would be meaningless.
*/
if (in_irq() || in_serving_softirq() || in_nmi()) {
if (spec.field_width == -1)
spec.field_width = 2 * sizeof(ptr);
return string(buf, end, "pK-error", spec);
}
/*
* Only print the real pointer value if the current
* process has CAP_SYSLOG and is running with the
* same credentials it started with. This is because
* access to files is checked at open() time, but %pK
* checks permission at read() time. We don't want to
* leak pointer values if a binary opens a file using
* %pK and then elevates privileges before reading it.
*/
cred = current_cred();
if (!has_capability_noaudit(current, CAP_SYSLOG) ||
!uid_eq(cred->euid, cred->uid) ||
!gid_eq(cred->egid, cred->gid))
ptr = NULL;
break;
}
case 2:
default:
/* Always print 0's for %pK */
ptr = NULL;
break;
}
return pointer_string(buf, end, ptr, spec);
} }
static noinline_for_stack static noinline_for_stack
@ -1532,24 +1660,31 @@ char *netdev_bits(char *buf, char *end, const void *addr,
unsigned long long num; unsigned long long num;
int size; int size;
if (check_pointer(&buf, end, addr, spec))
return buf;
switch (fmt[1]) { switch (fmt[1]) {
case 'F': case 'F':
num = *(const netdev_features_t *)addr; num = *(const netdev_features_t *)addr;
size = sizeof(netdev_features_t); size = sizeof(netdev_features_t);
break; break;
default: default:
return ptr_to_id(buf, end, addr, spec); return error_string(buf, end, "(%pN?)", spec);
} }
return special_hex_number(buf, end, num, size); return special_hex_number(buf, end, num, size);
} }
static noinline_for_stack static noinline_for_stack
char *address_val(char *buf, char *end, const void *addr, const char *fmt) char *address_val(char *buf, char *end, const void *addr,
struct printf_spec spec, const char *fmt)
{ {
unsigned long long num; unsigned long long num;
int size; int size;
if (check_pointer(&buf, end, addr, spec))
return buf;
switch (fmt[1]) { switch (fmt[1]) {
case 'd': case 'd':
num = *(const dma_addr_t *)addr; num = *(const dma_addr_t *)addr;
@ -1601,12 +1736,16 @@ char *time_str(char *buf, char *end, const struct rtc_time *tm, bool r)
} }
static noinline_for_stack static noinline_for_stack
char *rtc_str(char *buf, char *end, const struct rtc_time *tm, const char *fmt) char *rtc_str(char *buf, char *end, const struct rtc_time *tm,
struct printf_spec spec, const char *fmt)
{ {
bool have_t = true, have_d = true; bool have_t = true, have_d = true;
bool raw = false; bool raw = false;
int count = 2; int count = 2;
if (check_pointer(&buf, end, tm, spec))
return buf;
switch (fmt[count]) { switch (fmt[count]) {
case 'd': case 'd':
have_t = false; have_t = false;
@ -1640,9 +1779,9 @@ char *time_and_date(char *buf, char *end, void *ptr, struct printf_spec spec,
{ {
switch (fmt[1]) { switch (fmt[1]) {
case 'R': case 'R':
return rtc_str(buf, end, (const struct rtc_time *)ptr, fmt); return rtc_str(buf, end, (const struct rtc_time *)ptr, spec, fmt);
default: default:
return ptr_to_id(buf, end, ptr, spec); return error_string(buf, end, "(%ptR?)", spec);
} }
} }
@ -1650,8 +1789,11 @@ static noinline_for_stack
char *clock(char *buf, char *end, struct clk *clk, struct printf_spec spec, char *clock(char *buf, char *end, struct clk *clk, struct printf_spec spec,
const char *fmt) const char *fmt)
{ {
if (!IS_ENABLED(CONFIG_HAVE_CLK) || !clk) if (!IS_ENABLED(CONFIG_HAVE_CLK))
return string(buf, end, NULL, spec); return error_string(buf, end, "(%pC?)", spec);
if (check_pointer(&buf, end, clk, spec))
return buf;
switch (fmt[1]) { switch (fmt[1]) {
case 'n': case 'n':
@ -1659,7 +1801,7 @@ char *clock(char *buf, char *end, struct clk *clk, struct printf_spec spec,
#ifdef CONFIG_COMMON_CLK #ifdef CONFIG_COMMON_CLK
return string(buf, end, __clk_get_name(clk), spec); return string(buf, end, __clk_get_name(clk), spec);
#else #else
return ptr_to_id(buf, end, clk, spec); return error_string(buf, end, "(%pC?)", spec);
#endif #endif
} }
} }
@ -1692,11 +1834,15 @@ char *format_flags(char *buf, char *end, unsigned long flags,
} }
static noinline_for_stack static noinline_for_stack
char *flags_string(char *buf, char *end, void *flags_ptr, const char *fmt) char *flags_string(char *buf, char *end, void *flags_ptr,
struct printf_spec spec, const char *fmt)
{ {
unsigned long flags; unsigned long flags;
const struct trace_print_flags *names; const struct trace_print_flags *names;
if (check_pointer(&buf, end, flags_ptr, spec))
return buf;
switch (fmt[1]) { switch (fmt[1]) {
case 'p': case 'p':
flags = *(unsigned long *)flags_ptr; flags = *(unsigned long *)flags_ptr;
@ -1713,8 +1859,7 @@ char *flags_string(char *buf, char *end, void *flags_ptr, const char *fmt)
names = gfpflag_names; names = gfpflag_names;
break; break;
default: default:
WARN_ONCE(1, "Unsupported flags modifier: %c\n", fmt[1]); return error_string(buf, end, "(%pG?)", spec);
return buf;
} }
return format_flags(buf, end, flags, names); return format_flags(buf, end, flags, names);
@ -1736,13 +1881,13 @@ char *device_node_gen_full_name(const struct device_node *np, char *buf, char *e
/* special case for root node */ /* special case for root node */
if (!parent) if (!parent)
return string(buf, end, "/", default_str_spec); return string_nocheck(buf, end, "/", default_str_spec);
for (depth = 0; parent->parent; depth++) for (depth = 0; parent->parent; depth++)
parent = parent->parent; parent = parent->parent;
for ( ; depth >= 0; depth--) { for ( ; depth >= 0; depth--) {
buf = string(buf, end, "/", default_str_spec); buf = string_nocheck(buf, end, "/", default_str_spec);
buf = string(buf, end, device_node_name_for_depth(np, depth), buf = string(buf, end, device_node_name_for_depth(np, depth),
default_str_spec); default_str_spec);
} }
@ -1770,10 +1915,10 @@ char *device_node_string(char *buf, char *end, struct device_node *dn,
str_spec.field_width = -1; str_spec.field_width = -1;
if (!IS_ENABLED(CONFIG_OF)) if (!IS_ENABLED(CONFIG_OF))
return string(buf, end, "(!OF)", spec); return error_string(buf, end, "(%pOF?)", spec);
if ((unsigned long)dn < PAGE_SIZE) if (check_pointer(&buf, end, dn, spec))
return string(buf, end, "(null)", spec); return buf;
/* simple case without anything any more format specifiers */ /* simple case without anything any more format specifiers */
fmt++; fmt++;
@ -1814,7 +1959,7 @@ char *device_node_string(char *buf, char *end, struct device_node *dn,
tbuf[2] = of_node_check_flag(dn, OF_POPULATED) ? 'P' : '-'; tbuf[2] = of_node_check_flag(dn, OF_POPULATED) ? 'P' : '-';
tbuf[3] = of_node_check_flag(dn, OF_POPULATED_BUS) ? 'B' : '-'; tbuf[3] = of_node_check_flag(dn, OF_POPULATED_BUS) ? 'B' : '-';
tbuf[4] = 0; tbuf[4] = 0;
buf = string(buf, end, tbuf, str_spec); buf = string_nocheck(buf, end, tbuf, str_spec);
break; break;
case 'c': /* major compatible string */ case 'c': /* major compatible string */
ret = of_property_read_string(dn, "compatible", &p); ret = of_property_read_string(dn, "compatible", &p);
@ -1825,10 +1970,10 @@ char *device_node_string(char *buf, char *end, struct device_node *dn,
has_mult = false; has_mult = false;
of_property_for_each_string(dn, "compatible", prop, p) { of_property_for_each_string(dn, "compatible", prop, p) {
if (has_mult) if (has_mult)
buf = string(buf, end, ",", str_spec); buf = string_nocheck(buf, end, ",", str_spec);
buf = string(buf, end, "\"", str_spec); buf = string_nocheck(buf, end, "\"", str_spec);
buf = string(buf, end, p, str_spec); buf = string(buf, end, p, str_spec);
buf = string(buf, end, "\"", str_spec); buf = string_nocheck(buf, end, "\"", str_spec);
has_mult = true; has_mult = true;
} }
@ -1841,6 +1986,17 @@ char *device_node_string(char *buf, char *end, struct device_node *dn,
return widen_string(buf, buf - buf_start, end, spec); return widen_string(buf, buf - buf_start, end, spec);
} }
static char *kobject_string(char *buf, char *end, void *ptr,
struct printf_spec spec, const char *fmt)
{
switch (fmt[1]) {
case 'F':
return device_node_string(buf, end, ptr, spec, fmt + 1);
}
return error_string(buf, end, "(%pO?)", spec);
}
/* /*
* Show a '%p' thing. A kernel extension is that the '%p' is followed * Show a '%p' thing. A kernel extension is that the '%p' is followed
* by an extra set of alphanumeric characters that are extended format * by an extra set of alphanumeric characters that are extended format
@ -1957,18 +2113,6 @@ static noinline_for_stack
char *pointer(const char *fmt, char *buf, char *end, void *ptr, char *pointer(const char *fmt, char *buf, char *end, void *ptr,
struct printf_spec spec) struct printf_spec spec)
{ {
const int default_width = 2 * sizeof(void *);
if (!ptr && *fmt != 'K' && *fmt != 'x') {
/*
* Print (null) with the same width as a pointer so it makes
* tabular output look nice.
*/
if (spec.field_width == -1)
spec.field_width = default_width;
return string(buf, end, "(null)", spec);
}
switch (*fmt) { switch (*fmt) {
case 'F': case 'F':
case 'f': case 'f':
@ -2004,50 +2148,19 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr,
* 4: 001.002.003.004 * 4: 001.002.003.004
* 6: 000102...0f * 6: 000102...0f
*/ */
switch (fmt[1]) { return ip_addr_string(buf, end, ptr, spec, fmt);
case '6':
return ip6_addr_string(buf, end, ptr, spec, fmt);
case '4':
return ip4_addr_string(buf, end, ptr, spec, fmt);
case 'S': {
const union {
struct sockaddr raw;
struct sockaddr_in v4;
struct sockaddr_in6 v6;
} *sa = ptr;
switch (sa->raw.sa_family) {
case AF_INET:
return ip4_addr_string_sa(buf, end, &sa->v4, spec, fmt);
case AF_INET6:
return ip6_addr_string_sa(buf, end, &sa->v6, spec, fmt);
default:
return string(buf, end, "(invalid address)", spec);
}}
}
break;
case 'E': case 'E':
return escaped_string(buf, end, ptr, spec, fmt); return escaped_string(buf, end, ptr, spec, fmt);
case 'U': case 'U':
return uuid_string(buf, end, ptr, spec, fmt); return uuid_string(buf, end, ptr, spec, fmt);
case 'V': case 'V':
{ return va_format(buf, end, ptr, spec, fmt);
va_list va;
va_copy(va, *((struct va_format *)ptr)->va);
buf += vsnprintf(buf, end > buf ? end - buf : 0,
((struct va_format *)ptr)->fmt, va);
va_end(va);
return buf;
}
case 'K': case 'K':
if (!kptr_restrict)
break;
return restricted_pointer(buf, end, ptr, spec); return restricted_pointer(buf, end, ptr, spec);
case 'N': case 'N':
return netdev_bits(buf, end, ptr, spec, fmt); return netdev_bits(buf, end, ptr, spec, fmt);
case 'a': case 'a':
return address_val(buf, end, ptr, fmt); return address_val(buf, end, ptr, spec, fmt);
case 'd': case 'd':
return dentry_name(buf, end, ptr, spec, fmt); return dentry_name(buf, end, ptr, spec, fmt);
case 't': case 't':
@ -2064,13 +2177,9 @@ char *pointer(const char *fmt, char *buf, char *end, void *ptr,
#endif #endif
case 'G': case 'G':
return flags_string(buf, end, ptr, fmt); return flags_string(buf, end, ptr, spec, fmt);
case 'O': case 'O':
switch (fmt[1]) { return kobject_string(buf, end, ptr, spec, fmt);
case 'F':
return device_node_string(buf, end, ptr, spec, fmt + 1);
}
break;
case 'x': case 'x':
return pointer_string(buf, end, ptr, spec); return pointer_string(buf, end, ptr, spec);
} }
@ -2685,11 +2794,13 @@ int vbin_printf(u32 *bin_buf, size_t size, const char *fmt, va_list args)
case FORMAT_TYPE_STR: { case FORMAT_TYPE_STR: {
const char *save_str = va_arg(args, char *); const char *save_str = va_arg(args, char *);
const char *err_msg;
size_t len; size_t len;
if ((unsigned long)save_str > (unsigned long)-PAGE_SIZE err_msg = check_pointer_msg(save_str);
|| (unsigned long)save_str < PAGE_SIZE) if (err_msg)
save_str = "(null)"; save_str = err_msg;
len = strlen(save_str) + 1; len = strlen(save_str) + 1;
if (str + len < end) if (str + len < end)
memcpy(str, save_str, len); memcpy(str, save_str, len);

12
mm/memblock.c
View file

@ -702,7 +702,7 @@ int __init_memblock memblock_add(phys_addr_t base, phys_addr_t size)
{ {
phys_addr_t end = base + size - 1; phys_addr_t end = base + size - 1;
memblock_dbg("memblock_add: [%pa-%pa] %pF\n", memblock_dbg("memblock_add: [%pa-%pa] %pS\n",
&base, &end, (void *)_RET_IP_); &base, &end, (void *)_RET_IP_);
return memblock_add_range(&memblock.memory, base, size, MAX_NUMNODES, 0); return memblock_add_range(&memblock.memory, base, size, MAX_NUMNODES, 0);
@ -821,7 +821,7 @@ int __init_memblock memblock_free(phys_addr_t base, phys_addr_t size)
{ {
phys_addr_t end = base + size - 1; phys_addr_t end = base + size - 1;
memblock_dbg(" memblock_free: [%pa-%pa] %pF\n", memblock_dbg(" memblock_free: [%pa-%pa] %pS\n",
&base, &end, (void *)_RET_IP_); &base, &end, (void *)_RET_IP_);
kmemleak_free_part_phys(base, size); kmemleak_free_part_phys(base, size);
@ -832,7 +832,7 @@ int __init_memblock memblock_reserve(phys_addr_t base, phys_addr_t size)
{ {
phys_addr_t end = base + size - 1; phys_addr_t end = base + size - 1;
memblock_dbg("memblock_reserve: [%pa-%pa] %pF\n", memblock_dbg("memblock_reserve: [%pa-%pa] %pS\n",
&base, &end, (void *)_RET_IP_); &base, &end, (void *)_RET_IP_);
return memblock_add_range(&memblock.reserved, base, size, MAX_NUMNODES, 0); return memblock_add_range(&memblock.reserved, base, size, MAX_NUMNODES, 0);
@ -1447,7 +1447,7 @@ void * __init memblock_alloc_try_nid_raw(
{ {
void *ptr; void *ptr;
memblock_dbg("%s: %llu bytes align=0x%llx nid=%d from=%pa max_addr=%pa %pF\n", memblock_dbg("%s: %llu bytes align=0x%llx nid=%d from=%pa max_addr=%pa %pS\n",
__func__, (u64)size, (u64)align, nid, &min_addr, __func__, (u64)size, (u64)align, nid, &min_addr,
&max_addr, (void *)_RET_IP_); &max_addr, (void *)_RET_IP_);
@ -1483,7 +1483,7 @@ void * __init memblock_alloc_try_nid(
{ {
void *ptr; void *ptr;
memblock_dbg("%s: %llu bytes align=0x%llx nid=%d from=%pa max_addr=%pa %pF\n", memblock_dbg("%s: %llu bytes align=0x%llx nid=%d from=%pa max_addr=%pa %pS\n",
__func__, (u64)size, (u64)align, nid, &min_addr, __func__, (u64)size, (u64)align, nid, &min_addr,
&max_addr, (void *)_RET_IP_); &max_addr, (void *)_RET_IP_);
ptr = memblock_alloc_internal(size, align, ptr = memblock_alloc_internal(size, align,
@ -1508,7 +1508,7 @@ void __init __memblock_free_late(phys_addr_t base, phys_addr_t size)
phys_addr_t cursor, end; phys_addr_t cursor, end;
end = base + size - 1; end = base + size - 1;
memblock_dbg("%s: [%pa-%pa] %pF\n", memblock_dbg("%s: [%pa-%pa] %pS\n",
__func__, &base, &end, (void *)_RET_IP_); __func__, &base, &end, (void *)_RET_IP_);
kmemleak_free_part_phys(base, size); kmemleak_free_part_phys(base, size);
cursor = PFN_UP(base); cursor = PFN_UP(base);

2
mm/memory.c
View file

@ -519,7 +519,7 @@ static void print_bad_pte(struct vm_area_struct *vma, unsigned long addr,
dump_page(page, "bad pte"); dump_page(page, "bad pte");
pr_alert("addr:%p vm_flags:%08lx anon_vma:%p mapping:%p index:%lx\n", pr_alert("addr:%p vm_flags:%08lx anon_vma:%p mapping:%p index:%lx\n",
(void *)addr, vma->vm_flags, vma->anon_vma, mapping, index); (void *)addr, vma->vm_flags, vma->anon_vma, mapping, index);
pr_alert("file:%pD fault:%pf mmap:%pf readpage:%pf\n", pr_alert("file:%pD fault:%ps mmap:%ps readpage:%ps\n",
vma->vm_file, vma->vm_file,
vma->vm_ops ? vma->vm_ops->fault : NULL, vma->vm_ops ? vma->vm_ops->fault : NULL,
vma->vm_file ? vma->vm_file->f_op->mmap : NULL, vma->vm_file ? vma->vm_file->f_op->mmap : NULL,

2
mm/vmscan.c
View file

@ -493,7 +493,7 @@ static unsigned long do_shrink_slab(struct shrink_control *shrinkctl,
total_scan += delta; total_scan += delta;
if (total_scan < 0) { if (total_scan < 0) {
pr_err("shrink_slab: %pF negative objects to delete nr=%ld\n", pr_err("shrink_slab: %pS negative objects to delete nr=%ld\n",
shrinker->scan_objects, total_scan); shrinker->scan_objects, total_scan);
total_scan = freeable; total_scan = freeable;
next_deferred = nr; next_deferred = nr;

2
net/ceph/osd_client.c
View file

@ -2398,7 +2398,7 @@ static void finish_request(struct ceph_osd_request *req)
static void __complete_request(struct ceph_osd_request *req) static void __complete_request(struct ceph_osd_request *req)
{ {
dout("%s req %p tid %llu cb %pf result %d\n", __func__, req, dout("%s req %p tid %llu cb %ps result %d\n", __func__, req,
req->r_tid, req->r_callback, req->r_result); req->r_tid, req->r_callback, req->r_result);
if (req->r_callback) if (req->r_callback)

2
net/core/net-procfs.c
View file

@ -258,7 +258,7 @@ static int ptype_seq_show(struct seq_file *seq, void *v)
else else
seq_printf(seq, "%04x", ntohs(pt->type)); seq_printf(seq, "%04x", ntohs(pt->type));
seq_printf(seq, " %-8s %pf\n", seq_printf(seq, " %-8s %ps\n",
pt->dev ? pt->dev->name : "", pt->func); pt->dev ? pt->dev->name : "", pt->func);
} }

4
net/core/netpoll.c
View file

@ -149,7 +149,7 @@ static void poll_one_napi(struct napi_struct *napi)
* indicate that we are clearing the Tx path only. * indicate that we are clearing the Tx path only.
*/ */
work = napi->poll(napi, 0); work = napi->poll(napi, 0);
WARN_ONCE(work, "%pF exceeded budget in poll\n", napi->poll); WARN_ONCE(work, "%pS exceeded budget in poll\n", napi->poll);
trace_napi_poll(napi, work, 0); trace_napi_poll(napi, work, 0);
clear_bit(NAPI_STATE_NPSVC, &napi->state); clear_bit(NAPI_STATE_NPSVC, &napi->state);
@ -346,7 +346,7 @@ void netpoll_send_skb_on_dev(struct netpoll *np, struct sk_buff *skb,
} }
WARN_ONCE(!irqs_disabled(), WARN_ONCE(!irqs_disabled(),
"netpoll_send_skb_on_dev(): %s enabled interrupts in poll (%pF)\n", "netpoll_send_skb_on_dev(): %s enabled interrupts in poll (%pS)\n",
dev->name, dev->netdev_ops->ndo_start_xmit); dev->name, dev->netdev_ops->ndo_start_xmit);
} }