mirror of
https://gitee.com/bianbu-linux/linux-6.6
synced 2025-07-24 01:54:03 -04:00
8954a159d1
[ Upstream commit 95f97fe0ac974467ab4da215985a32b2fdf48af0 ]
When compiling with clang 16.0.6 and CONFIG_FORTIFY_SOURCE=y, I've
noticed the following (somewhat confusing due to absence of an actual
source code location):
In file included from drivers/net/wireless/ath/ath9k/debug.c:17:
In file included from ./include/linux/slab.h:16:
In file included from ./include/linux/gfp.h:7:
In file included from ./include/linux/mmzone.h:8:
In file included from ./include/linux/spinlock.h:56:
In file included from ./include/linux/preempt.h:79:
In file included from ./arch/x86/include/asm/preempt.h:9:
In file included from ./include/linux/thread_info.h:60:
In file included from ./arch/x86/include/asm/thread_info.h:53:
In file included from ./arch/x86/include/asm/cpufeature.h:5:
In file included from ./arch/x86/include/asm/processor.h:23:
In file included from ./arch/x86/include/asm/msr.h:11:
In file included from ./arch/x86/include/asm/cpumask.h:5:
In file included from ./include/linux/cpumask.h:12:
In file included from ./include/linux/bitmap.h:11:
In file included from ./include/linux/string.h:254:
./include/linux/fortify-string.h:592:4: warning: call to '__read_overflow2_field'
declared with 'warning' attribute: detected read beyond size of field (2nd
parameter); maybe use struct_group()? [-Wattribute-warning]
__read_overflow2_field(q_size_field, size);
In file included from drivers/net/wireless/ath/ath9k/htc_drv_debug.c:17:
In file included from drivers/net/wireless/ath/ath9k/htc.h:20:
In file included from ./include/linux/module.h:13:
In file included from ./include/linux/stat.h:19:
In file included from ./include/linux/time.h:60:
In file included from ./include/linux/time32.h:13:
In file included from ./include/linux/timex.h:67:
In file included from ./arch/x86/include/asm/timex.h:5:
In file included from ./arch/x86/include/asm/processor.h:23:
In file included from ./arch/x86/include/asm/msr.h:11:
In file included from ./arch/x86/include/asm/cpumask.h:5:
In file included from ./include/linux/cpumask.h:12:
In file included from ./include/linux/bitmap.h:11:
In file included from ./include/linux/string.h:254:
./include/linux/fortify-string.h:592:4: warning: call to '__read_overflow2_field'
declared with 'warning' attribute: detected read beyond size of field (2nd
parameter); maybe use struct_group()? [-Wattribute-warning]
__read_overflow2_field(q_size_field, size);
The compiler actually complains on 'ath9k_get_et_strings()' and
'ath9k_htc_get_et_strings()' due to the same reason: fortification logic
inteprets call to 'memcpy()' as an attempt to copy the whole array from
it's first member and so issues an overread warning. These warnings may
be silenced by passing an address of the whole array and not the first
member to 'memcpy()'.
Signed-off-by: Dmitry Antipov <dmantipov@yandex.ru>
Acked-by: Toke Høiland-Jørgensen <toke@toke.dk>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20230829093856.234584-1-dmantipov@yandex.ru
Signed-off-by: Sasha Levin <sashal@kernel.org>
519 lines
14 KiB
C
519 lines
14 KiB
C
/*
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* Copyright (c) 2010-2011 Atheros Communications Inc.
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include "htc.h"
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static ssize_t read_file_tgt_int_stats(struct file *file, char __user *user_buf,
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size_t count, loff_t *ppos)
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{
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struct ath9k_htc_priv *priv = file->private_data;
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struct ath9k_htc_target_int_stats cmd_rsp;
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char buf[512];
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unsigned int len = 0;
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int ret = 0;
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memset(&cmd_rsp, 0, sizeof(cmd_rsp));
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ath9k_htc_ps_wakeup(priv);
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WMI_CMD(WMI_INT_STATS_CMDID);
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if (ret) {
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ath9k_htc_ps_restore(priv);
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return -EINVAL;
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}
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ath9k_htc_ps_restore(priv);
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len += scnprintf(buf + len, sizeof(buf) - len,
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"%20s : %10u\n", "RX",
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be32_to_cpu(cmd_rsp.rx));
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len += scnprintf(buf + len, sizeof(buf) - len,
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"%20s : %10u\n", "RXORN",
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be32_to_cpu(cmd_rsp.rxorn));
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len += scnprintf(buf + len, sizeof(buf) - len,
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"%20s : %10u\n", "RXEOL",
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be32_to_cpu(cmd_rsp.rxeol));
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len += scnprintf(buf + len, sizeof(buf) - len,
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"%20s : %10u\n", "TXURN",
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be32_to_cpu(cmd_rsp.txurn));
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len += scnprintf(buf + len, sizeof(buf) - len,
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"%20s : %10u\n", "TXTO",
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be32_to_cpu(cmd_rsp.txto));
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len += scnprintf(buf + len, sizeof(buf) - len,
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"%20s : %10u\n", "CST",
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be32_to_cpu(cmd_rsp.cst));
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if (len > sizeof(buf))
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len = sizeof(buf);
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return simple_read_from_buffer(user_buf, count, ppos, buf, len);
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}
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static const struct file_operations fops_tgt_int_stats = {
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.read = read_file_tgt_int_stats,
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.open = simple_open,
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.owner = THIS_MODULE,
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.llseek = default_llseek,
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};
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static ssize_t read_file_tgt_tx_stats(struct file *file, char __user *user_buf,
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size_t count, loff_t *ppos)
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{
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struct ath9k_htc_priv *priv = file->private_data;
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struct ath9k_htc_target_tx_stats cmd_rsp;
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char buf[512];
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unsigned int len = 0;
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int ret = 0;
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memset(&cmd_rsp, 0, sizeof(cmd_rsp));
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ath9k_htc_ps_wakeup(priv);
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WMI_CMD(WMI_TX_STATS_CMDID);
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if (ret) {
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ath9k_htc_ps_restore(priv);
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return -EINVAL;
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}
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ath9k_htc_ps_restore(priv);
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len += scnprintf(buf + len, sizeof(buf) - len,
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"%20s : %10u\n", "Xretries",
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be32_to_cpu(cmd_rsp.xretries));
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len += scnprintf(buf + len, sizeof(buf) - len,
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"%20s : %10u\n", "FifoErr",
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be32_to_cpu(cmd_rsp.fifoerr));
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len += scnprintf(buf + len, sizeof(buf) - len,
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"%20s : %10u\n", "Filtered",
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be32_to_cpu(cmd_rsp.filtered));
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len += scnprintf(buf + len, sizeof(buf) - len,
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"%20s : %10u\n", "TimerExp",
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be32_to_cpu(cmd_rsp.timer_exp));
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len += scnprintf(buf + len, sizeof(buf) - len,
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"%20s : %10u\n", "ShortRetries",
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be32_to_cpu(cmd_rsp.shortretries));
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len += scnprintf(buf + len, sizeof(buf) - len,
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"%20s : %10u\n", "LongRetries",
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be32_to_cpu(cmd_rsp.longretries));
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len += scnprintf(buf + len, sizeof(buf) - len,
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"%20s : %10u\n", "QueueNull",
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be32_to_cpu(cmd_rsp.qnull));
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len += scnprintf(buf + len, sizeof(buf) - len,
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"%20s : %10u\n", "EncapFail",
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be32_to_cpu(cmd_rsp.encap_fail));
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len += scnprintf(buf + len, sizeof(buf) - len,
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"%20s : %10u\n", "NoBuf",
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be32_to_cpu(cmd_rsp.nobuf));
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if (len > sizeof(buf))
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len = sizeof(buf);
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return simple_read_from_buffer(user_buf, count, ppos, buf, len);
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}
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static const struct file_operations fops_tgt_tx_stats = {
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.read = read_file_tgt_tx_stats,
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.open = simple_open,
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.owner = THIS_MODULE,
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.llseek = default_llseek,
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};
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static ssize_t read_file_tgt_rx_stats(struct file *file, char __user *user_buf,
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size_t count, loff_t *ppos)
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{
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struct ath9k_htc_priv *priv = file->private_data;
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struct ath9k_htc_target_rx_stats cmd_rsp;
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char buf[512];
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unsigned int len = 0;
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int ret = 0;
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memset(&cmd_rsp, 0, sizeof(cmd_rsp));
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ath9k_htc_ps_wakeup(priv);
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WMI_CMD(WMI_RX_STATS_CMDID);
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if (ret) {
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ath9k_htc_ps_restore(priv);
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return -EINVAL;
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}
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ath9k_htc_ps_restore(priv);
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len += scnprintf(buf + len, sizeof(buf) - len,
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"%20s : %10u\n", "NoBuf",
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be32_to_cpu(cmd_rsp.nobuf));
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len += scnprintf(buf + len, sizeof(buf) - len,
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"%20s : %10u\n", "HostSend",
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be32_to_cpu(cmd_rsp.host_send));
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len += scnprintf(buf + len, sizeof(buf) - len,
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"%20s : %10u\n", "HostDone",
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be32_to_cpu(cmd_rsp.host_done));
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if (len > sizeof(buf))
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len = sizeof(buf);
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return simple_read_from_buffer(user_buf, count, ppos, buf, len);
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}
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static const struct file_operations fops_tgt_rx_stats = {
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.read = read_file_tgt_rx_stats,
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.open = simple_open,
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.owner = THIS_MODULE,
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.llseek = default_llseek,
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};
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static ssize_t read_file_xmit(struct file *file, char __user *user_buf,
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size_t count, loff_t *ppos)
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{
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struct ath9k_htc_priv *priv = file->private_data;
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char buf[512];
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unsigned int len = 0;
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len += scnprintf(buf + len, sizeof(buf) - len,
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"%20s : %10u\n", "Buffers queued",
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priv->debug.tx_stats.buf_queued);
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len += scnprintf(buf + len, sizeof(buf) - len,
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"%20s : %10u\n", "Buffers completed",
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priv->debug.tx_stats.buf_completed);
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len += scnprintf(buf + len, sizeof(buf) - len,
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"%20s : %10u\n", "SKBs queued",
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priv->debug.tx_stats.skb_queued);
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len += scnprintf(buf + len, sizeof(buf) - len,
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"%20s : %10u\n", "SKBs success",
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priv->debug.tx_stats.skb_success);
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len += scnprintf(buf + len, sizeof(buf) - len,
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"%20s : %10u\n", "SKBs failed",
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priv->debug.tx_stats.skb_failed);
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len += scnprintf(buf + len, sizeof(buf) - len,
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"%20s : %10u\n", "CAB queued",
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priv->debug.tx_stats.cab_queued);
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len += scnprintf(buf + len, sizeof(buf) - len,
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"%20s : %10u\n", "BE queued",
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priv->debug.tx_stats.queue_stats[IEEE80211_AC_BE]);
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len += scnprintf(buf + len, sizeof(buf) - len,
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"%20s : %10u\n", "BK queued",
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priv->debug.tx_stats.queue_stats[IEEE80211_AC_BK]);
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len += scnprintf(buf + len, sizeof(buf) - len,
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"%20s : %10u\n", "VI queued",
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priv->debug.tx_stats.queue_stats[IEEE80211_AC_VI]);
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len += scnprintf(buf + len, sizeof(buf) - len,
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"%20s : %10u\n", "VO queued",
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priv->debug.tx_stats.queue_stats[IEEE80211_AC_VO]);
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if (len > sizeof(buf))
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len = sizeof(buf);
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return simple_read_from_buffer(user_buf, count, ppos, buf, len);
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}
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static const struct file_operations fops_xmit = {
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.read = read_file_xmit,
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.open = simple_open,
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.owner = THIS_MODULE,
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.llseek = default_llseek,
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};
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void ath9k_htc_err_stat_rx(struct ath9k_htc_priv *priv,
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struct ath_rx_status *rs)
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{
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ath9k_cmn_debug_stat_rx(&priv->debug.rx_stats, rs);
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}
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static ssize_t read_file_skb_rx(struct file *file, char __user *user_buf,
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size_t count, loff_t *ppos)
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{
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struct ath9k_htc_priv *priv = file->private_data;
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char *buf;
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unsigned int len = 0, size = 1500;
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ssize_t retval = 0;
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buf = kzalloc(size, GFP_KERNEL);
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if (buf == NULL)
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return -ENOMEM;
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len += scnprintf(buf + len, size - len,
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"%20s : %10u\n", "SKBs allocated",
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priv->debug.skbrx_stats.skb_allocated);
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len += scnprintf(buf + len, size - len,
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"%20s : %10u\n", "SKBs completed",
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priv->debug.skbrx_stats.skb_completed);
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len += scnprintf(buf + len, size - len,
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"%20s : %10u\n", "SKBs Dropped",
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priv->debug.skbrx_stats.skb_dropped);
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if (len > size)
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len = size;
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retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
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kfree(buf);
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return retval;
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}
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static const struct file_operations fops_skb_rx = {
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.read = read_file_skb_rx,
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.open = simple_open,
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.owner = THIS_MODULE,
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.llseek = default_llseek,
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};
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static ssize_t read_file_slot(struct file *file, char __user *user_buf,
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size_t count, loff_t *ppos)
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{
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struct ath9k_htc_priv *priv = file->private_data;
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char buf[512];
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unsigned int len;
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spin_lock_bh(&priv->tx.tx_lock);
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len = scnprintf(buf, sizeof(buf),
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"TX slot bitmap : %*pb\n"
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"Used slots : %d\n",
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MAX_TX_BUF_NUM, priv->tx.tx_slot,
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bitmap_weight(priv->tx.tx_slot, MAX_TX_BUF_NUM));
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spin_unlock_bh(&priv->tx.tx_lock);
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return simple_read_from_buffer(user_buf, count, ppos, buf, len);
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}
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static const struct file_operations fops_slot = {
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.read = read_file_slot,
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.open = simple_open,
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.owner = THIS_MODULE,
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.llseek = default_llseek,
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};
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static ssize_t read_file_queue(struct file *file, char __user *user_buf,
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size_t count, loff_t *ppos)
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{
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struct ath9k_htc_priv *priv = file->private_data;
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char buf[512];
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unsigned int len = 0;
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len += scnprintf(buf + len, sizeof(buf) - len, "%20s : %10u\n",
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"Mgmt endpoint", skb_queue_len(&priv->tx.mgmt_ep_queue));
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len += scnprintf(buf + len, sizeof(buf) - len, "%20s : %10u\n",
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"Cab endpoint", skb_queue_len(&priv->tx.cab_ep_queue));
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len += scnprintf(buf + len, sizeof(buf) - len, "%20s : %10u\n",
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"Data BE endpoint", skb_queue_len(&priv->tx.data_be_queue));
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len += scnprintf(buf + len, sizeof(buf) - len, "%20s : %10u\n",
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"Data BK endpoint", skb_queue_len(&priv->tx.data_bk_queue));
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len += scnprintf(buf + len, sizeof(buf) - len, "%20s : %10u\n",
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"Data VI endpoint", skb_queue_len(&priv->tx.data_vi_queue));
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len += scnprintf(buf + len, sizeof(buf) - len, "%20s : %10u\n",
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"Data VO endpoint", skb_queue_len(&priv->tx.data_vo_queue));
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len += scnprintf(buf + len, sizeof(buf) - len, "%20s : %10u\n",
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"Failed queue", skb_queue_len(&priv->tx.tx_failed));
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spin_lock_bh(&priv->tx.tx_lock);
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len += scnprintf(buf + len, sizeof(buf) - len, "%20s : %10u\n",
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"Queued count", priv->tx.queued_cnt);
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spin_unlock_bh(&priv->tx.tx_lock);
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if (len > sizeof(buf))
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len = sizeof(buf);
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return simple_read_from_buffer(user_buf, count, ppos, buf, len);
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}
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static const struct file_operations fops_queue = {
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.read = read_file_queue,
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.open = simple_open,
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.owner = THIS_MODULE,
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.llseek = default_llseek,
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};
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static ssize_t read_file_debug(struct file *file, char __user *user_buf,
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size_t count, loff_t *ppos)
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{
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struct ath9k_htc_priv *priv = file->private_data;
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struct ath_common *common = ath9k_hw_common(priv->ah);
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char buf[32];
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unsigned int len;
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len = sprintf(buf, "0x%08x\n", common->debug_mask);
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return simple_read_from_buffer(user_buf, count, ppos, buf, len);
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}
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static ssize_t write_file_debug(struct file *file, const char __user *user_buf,
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size_t count, loff_t *ppos)
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{
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struct ath9k_htc_priv *priv = file->private_data;
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struct ath_common *common = ath9k_hw_common(priv->ah);
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unsigned long mask;
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ssize_t ret;
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ret = kstrtoul_from_user(user_buf, count, 0, &mask);
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if (ret)
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return ret;
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common->debug_mask = mask;
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return count;
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}
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static const struct file_operations fops_debug = {
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.read = read_file_debug,
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.write = write_file_debug,
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.open = simple_open,
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.owner = THIS_MODULE,
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.llseek = default_llseek,
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};
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/* Ethtool support for get-stats */
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#define AMKSTR(nm) #nm "_BE", #nm "_BK", #nm "_VI", #nm "_VO"
|
|
static const char ath9k_htc_gstrings_stats[][ETH_GSTRING_LEN] = {
|
|
"tx_pkts_nic",
|
|
"tx_bytes_nic",
|
|
"rx_pkts_nic",
|
|
"rx_bytes_nic",
|
|
|
|
AMKSTR(d_tx_pkts),
|
|
|
|
"d_rx_crc_err",
|
|
"d_rx_decrypt_crc_err",
|
|
"d_rx_phy_err",
|
|
"d_rx_mic_err",
|
|
"d_rx_pre_delim_crc_err",
|
|
"d_rx_post_delim_crc_err",
|
|
"d_rx_decrypt_busy_err",
|
|
|
|
"d_rx_phyerr_radar",
|
|
"d_rx_phyerr_ofdm_timing",
|
|
"d_rx_phyerr_cck_timing",
|
|
|
|
};
|
|
#define ATH9K_HTC_SSTATS_LEN ARRAY_SIZE(ath9k_htc_gstrings_stats)
|
|
|
|
void ath9k_htc_get_et_strings(struct ieee80211_hw *hw,
|
|
struct ieee80211_vif *vif,
|
|
u32 sset, u8 *data)
|
|
{
|
|
if (sset == ETH_SS_STATS)
|
|
memcpy(data, ath9k_htc_gstrings_stats,
|
|
sizeof(ath9k_htc_gstrings_stats));
|
|
}
|
|
|
|
int ath9k_htc_get_et_sset_count(struct ieee80211_hw *hw,
|
|
struct ieee80211_vif *vif, int sset)
|
|
{
|
|
if (sset == ETH_SS_STATS)
|
|
return ATH9K_HTC_SSTATS_LEN;
|
|
return 0;
|
|
}
|
|
|
|
#define STXBASE priv->debug.tx_stats
|
|
#define SRXBASE priv->debug.rx_stats
|
|
#define SKBTXBASE priv->debug.tx_stats
|
|
#define SKBRXBASE priv->debug.skbrx_stats
|
|
#define ASTXQ(a) \
|
|
data[i++] = STXBASE.a[IEEE80211_AC_BE]; \
|
|
data[i++] = STXBASE.a[IEEE80211_AC_BK]; \
|
|
data[i++] = STXBASE.a[IEEE80211_AC_VI]; \
|
|
data[i++] = STXBASE.a[IEEE80211_AC_VO]
|
|
|
|
void ath9k_htc_get_et_stats(struct ieee80211_hw *hw,
|
|
struct ieee80211_vif *vif,
|
|
struct ethtool_stats *stats, u64 *data)
|
|
{
|
|
struct ath9k_htc_priv *priv = hw->priv;
|
|
int i = 0;
|
|
|
|
data[i++] = SKBTXBASE.skb_success;
|
|
data[i++] = SKBTXBASE.skb_success_bytes;
|
|
data[i++] = SKBRXBASE.skb_completed;
|
|
data[i++] = SKBRXBASE.skb_completed_bytes;
|
|
|
|
ASTXQ(queue_stats);
|
|
|
|
data[i++] = SRXBASE.crc_err;
|
|
data[i++] = SRXBASE.decrypt_crc_err;
|
|
data[i++] = SRXBASE.phy_err;
|
|
data[i++] = SRXBASE.mic_err;
|
|
data[i++] = SRXBASE.pre_delim_crc_err;
|
|
data[i++] = SRXBASE.post_delim_crc_err;
|
|
data[i++] = SRXBASE.decrypt_busy_err;
|
|
|
|
data[i++] = SRXBASE.phy_err_stats[ATH9K_PHYERR_RADAR];
|
|
data[i++] = SRXBASE.phy_err_stats[ATH9K_PHYERR_OFDM_TIMING];
|
|
data[i++] = SRXBASE.phy_err_stats[ATH9K_PHYERR_CCK_TIMING];
|
|
|
|
WARN_ON(i != ATH9K_HTC_SSTATS_LEN);
|
|
}
|
|
|
|
void ath9k_htc_deinit_debug(struct ath9k_htc_priv *priv)
|
|
{
|
|
ath9k_cmn_spectral_deinit_debug(&priv->spec_priv);
|
|
}
|
|
|
|
int ath9k_htc_init_debug(struct ath_hw *ah)
|
|
{
|
|
struct ath_common *common = ath9k_hw_common(ah);
|
|
struct ath9k_htc_priv *priv = (struct ath9k_htc_priv *) common->priv;
|
|
|
|
priv->debug.debugfs_phy = debugfs_create_dir(KBUILD_MODNAME,
|
|
priv->hw->wiphy->debugfsdir);
|
|
if (IS_ERR(priv->debug.debugfs_phy))
|
|
return -ENOMEM;
|
|
|
|
ath9k_cmn_spectral_init_debug(&priv->spec_priv, priv->debug.debugfs_phy);
|
|
|
|
debugfs_create_file("tgt_int_stats", 0400, priv->debug.debugfs_phy,
|
|
priv, &fops_tgt_int_stats);
|
|
debugfs_create_file("tgt_tx_stats", 0400, priv->debug.debugfs_phy,
|
|
priv, &fops_tgt_tx_stats);
|
|
debugfs_create_file("tgt_rx_stats", 0400, priv->debug.debugfs_phy,
|
|
priv, &fops_tgt_rx_stats);
|
|
debugfs_create_file("xmit", 0400, priv->debug.debugfs_phy,
|
|
priv, &fops_xmit);
|
|
debugfs_create_file("skb_rx", 0400, priv->debug.debugfs_phy,
|
|
priv, &fops_skb_rx);
|
|
|
|
ath9k_cmn_debug_recv(priv->debug.debugfs_phy, &priv->debug.rx_stats);
|
|
ath9k_cmn_debug_phy_err(priv->debug.debugfs_phy, &priv->debug.rx_stats);
|
|
|
|
debugfs_create_file("slot", 0400, priv->debug.debugfs_phy,
|
|
priv, &fops_slot);
|
|
debugfs_create_file("queue", 0400, priv->debug.debugfs_phy,
|
|
priv, &fops_queue);
|
|
debugfs_create_file("debug", 0600, priv->debug.debugfs_phy,
|
|
priv, &fops_debug);
|
|
|
|
ath9k_cmn_debug_base_eeprom(priv->debug.debugfs_phy, priv->ah);
|
|
ath9k_cmn_debug_modal_eeprom(priv->debug.debugfs_phy, priv->ah);
|
|
|
|
return 0;
|
|
}
|