+ kasan-add-kasan_tag_mismatch-prototype.patch added to mm-unstable branch

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



The patch titled
     Subject: kasan: add kasan_tag_mismatch prototype
has been added to the -mm mm-unstable branch.  Its filename is
     kasan-add-kasan_tag_mismatch-prototype.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/kasan-add-kasan_tag_mismatch-prototype.patch

This patch will later appear in the mm-unstable branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Before you just go and hit "reply", please:
   a) Consider who else should be cc'ed
   b) Prefer to cc a suitable mailing list as well
   c) Ideally: find the original patch on the mailing list and do a
      reply-to-all to that, adding suitable additional cc's

*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***

The -mm tree is included into linux-next via the mm-everything
branch at git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
and is updated there every 2-3 working days

------------------------------------------------------
From: Arnd Bergmann <arnd@xxxxxxxx>
Subject: kasan: add kasan_tag_mismatch prototype
Date: Tue, 9 May 2023 16:57:20 +0200

The kasan sw-tags implementation contains one function that is only called
from assembler and has no prototype in a header.  This causes a W=1
warning:

mm/kasan/sw_tags.c:171:6: warning: no previous prototype for 'kasan_tag_mismatch' [-Wmissing-prototypes]
  171 | void kasan_tag_mismatch(unsigned long addr, unsigned long access_info,

Add a prototype in the local header to get a clean build.

Link: https://lkml.kernel.org/r/20230509145735.9263-1-arnd@xxxxxxxxxx
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Cc: Alexander Potapenko <glider@xxxxxxxxxx>
Cc: Andrey Konovalov <andreyknvl@xxxxxxxxx>
Cc: Andrey Ryabinin <ryabinin.a.a@xxxxxxxxx>
Cc: Dmitry Vyukov <dvyukov@xxxxxxxxxx>
Cc: Marco Elver <elver@xxxxxxxxxx>
Cc: Vincenzo Frascino <vincenzo.frascino@xxxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---

 mm/kasan/kasan.h |    3 +++
 1 file changed, 3 insertions(+)

--- a/mm/kasan/kasan.h~kasan-add-kasan_tag_mismatch-prototype
+++ a/mm/kasan/kasan.h
@@ -646,4 +646,7 @@ void *__hwasan_memset(void *addr, int c,
 void *__hwasan_memmove(void *dest, const void *src, size_t len);
 void *__hwasan_memcpy(void *dest, const void *src, size_t len);
 
+void kasan_tag_mismatch(unsigned long addr, unsigned long access_info,
+			unsigned long ret_ip);
+
 #endif /* __MM_KASAN_KASAN_H */
_

Patches currently in -mm which might be from arnd@xxxxxxxx are

kasan-add-kasan_tag_mismatch-prototype.patch
kasan-use-internal-prototypes-matching-gcc-13-builtins.patch




[Index of Archives]     [Kernel Archive]     [IETF Annouce]     [DCCP]     [Netdev]     [Networking]     [Security]     [Bugtraq]     [Yosemite]     [MIPS Linux]     [ARM Linux]     [Linux Security]     [Linux RAID]     [Linux SCSI]

  Powered by Linux