linux-kernel - [PATCH stable v5.4 v2 0/3] Missing overflow changes

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Message-Id: <20250307130953.3427986-1-florian.fainelli@broadcom.com>
Date: Fri,  7 Mar 2025 05:09:50 -0800
From: Florian Fainelli <florian.fainelli@...adcom.com>
To: linux-kernel@...r.kernel.org
Cc: stable@...r.kernel.org,
	Florian Fainelli <florian.fainelli@...adcom.com>,
	Kees Cook <keescook@...omium.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Keith Busch <kbusch@...nel.org>,
	"Gustavo A. R. Silva" <gustavoars@...nel.org>
Subject: [PATCH stable v5.4 v2 0/3] Missing overflow changes

This patch series backports the minimum set of changes in order to fix
this warning that popped up with >= 5.4.284 stable kernels:

In file included from ./include/linux/mm.h:29,
                 from ./include/linux/pagemap.h:8,
                 from ./include/linux/buffer_head.h:14,
                 from fs/udf/udfdecl.h:12,
                 from fs/udf/super.c:41:
fs/udf/super.c: In function 'udf_fill_partdesc_info':
./include/linux/overflow.h:70:15: warning: comparison of distinct pointer types lacks a cast
  (void) (&__a == &__b);   \
               ^~
fs/udf/super.c:1162:7: note: in expansion of macro 'check_add_overflow'
   if (check_add_overflow(map->s_partition_len,
       ^~~~~~~~~~~~~~~~~~

Changes in v2:
- added missing upstream commit ID to the last patch in the series

Kees Cook (2):
  overflow: Add __must_check attribute to check_*() helpers
  overflow: Allow mixed type arguments

Keith Busch (1):
  overflow: Correct check_shl_overflow() comment

 include/linux/overflow.h | 101 +++++++++++++++++++++++----------------
 1 file changed, 60 insertions(+), 41 deletions(-)

-- 
2.34.1