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error-injection: remove EI_ETYPE_NONE

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Patch series "error-injection: Clarify the requirements of error
injectable functions".

Patches for clarifying the requirement of error injectable functions and
to remove the confusing EI_ETYPE_NONE.


This patch (of 2):

Since the EI_ETYPE_NONE is confusing type, replace it with appropriate
errno.  The EI_ETYPE_NONE has been introduced for a dummy (error) value,
but it can mislead people that they can use ALLOW_ERROR_INJECTION(func,
NONE).  So remove it from the EI_ETYPE and use appropriate errno instead.

[akpm@linux-foundation.org: include/linux/error-injection.h needs errno.h]
Link: https://lkml.kernel.org/r/167081319306.387937.10079195394503045678.stgit@devnote3
Link: https://lkml.kernel.org/r/167081320421.387937.4259807348852421112.stgit@devnote3
Fixes: 663faf9f7b ("error-injection: Add injectable error types")
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Cc: Alexei Starovoitov <alexei.starovoitov@gmail.com>
Cc: Borislav Petkov (AMD) <bp@alien8.de>
Cc: Chris Mason <clm@meta.com>
Cc: Christoph Hellwig <hch@infradead.org>
Cc: Florent Revest <revest@chromium.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Josh Poimboeuf <jpoimboe@redhat.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: KP Singh <kpsingh@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
This commit is contained in:
Masami Hiramatsu (Google) 2022-12-12 11:46:44 +09:00 • committed by Andrew Morton
parent 89b25c0e02
commit 6338bb05c1
3 changed files with 3 additions and 3 deletions
Download patch file Download diff file Expand all files Collapse all files

3
include/linux/error-injection.h
View file

@ -3,6 +3,7 @@
#define _LINUX_ERROR_INJECTION_H
#include <linux/compiler.h>
#include <linux/errno.h>
#include <asm-generic/error-injection.h>
#ifdef CONFIG_FUNCTION_ERROR_INJECTION
@ -19,7 +20,7 @@ static inline bool within_error_injection_list(unsigned long addr)
static inline int get_injectable_error_type(unsigned long addr)
{
return EI_ETYPE_NONE;
return -EOPNOTSUPP;
}
#endif