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linux/drivers/misc/lkdtm
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Justin Stitt 8b0386bca5 drivers: lkdtm: fix clang -Wformat warning 
[ Upstream commit b4909252da ]

When building with Clang we encounter the following warning
(ARCH=hexagon + CONFIG_FRAME_WARN=0):
| ../drivers/misc/lkdtm/bugs.c:107:3: error: format specifies type
| 'unsigned long' but the argument has type 'int' [-Werror,-Wformat]
|                 REC_STACK_SIZE, recur_count);
|                 ^~~~~~~~~~~~~~

Cast REC_STACK_SIZE to `unsigned long` to match format specifier `%lu`
as well as maintain symmetry with `#define REC_STACK_SIZE
(_AC(CONFIG_FRAME_WARN, UL) / 2)`.

Link: https://github.com/ClangBuiltLinux/linux/issues/378
Reported-by: Nathan Chancellor <nathan@kernel.org>
Suggested-by: Nathan Chancellor <nathan@kernel.org>
Suggested-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Justin Stitt <justinstitt@google.com>
Reviewed-by: Nathan Chancellor <nathan@kernel.org>
Tested-by: Nathan Chancellor <nathan@kernel.org>
Acked-by: Kees Cook <keescook@chromium.org>
Fixes: 24cccab42c ("lkdtm/bugs: Adjust recursion test to avoid elision")
Signed-off-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/20220721215706.4153027-1-justinstitt@google.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2024-02-23 08:54:59 +01:00
..
bugs.c drivers: lkdtm: fix clang -Wformat warning 2024-02-23 08:54:59 +01:00
cfi.c lkdtm: Add CONFIG hints in errors where possible 2021-06-24 15:32:08 +02:00
core.c lkdtm: Use init_uts_ns.name instead of macros 2021-09-10 17:09:40 +02:00
fortify.c lkdtm/fortify: Consolidate FORTIFY_SOURCE tests 2021-08-18 22:28:51 +02:00
heap.c lkdtm/heap: Avoid __alloc_size hint warning for VMALLOC_LINEAR_OVERFLOW 2021-08-18 22:28:51 +02:00
lkdtm.h lkdtm/bugs: Don't expect thread termination without CONFIG_UBSAN_TRAP 2022-06-14 18:36:03 +02:00
Makefile lkdtm: Fix content of section containing lkdtm_rodata_do_nothing() 2022-01-27 11:02:57 +01:00
perms.c lkdtm: Avoid more compiler optimizations for bad writes 2020-06-29 18:41:39 +02:00
powerpc.c lkdtm/powerpc: Add SLB multihit test 2020-12-04 01:01:34 +11:00
refcount.c lkdtm: Remove references to CONFIG_REFCOUNT_FULL 2019-11-25 09:15:46 +01:00
rodata.c lkdtm: don't move ctors to .rodata 2020-12-09 15:51:14 +01:00
stackleak.c lkdtm: Add CONFIG hints in errors where possible 2021-06-24 15:32:08 +02:00
usercopy.c lkdtm/usercopy: Expand size of "out of frame" object 2022-06-14 18:36:20 +02:00