From: Justin Stitt Date: Thu, 21 Jul 2022 21:57:06 +0000 (-0700) Subject: drivers: lkdtm: fix clang -Wformat warning X-Git-Tag: v6.1-rc5~726^2 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=b5276c924497705ca927ad85a763c37f2de98349;p=platform%2Fkernel%2Flinux-starfive.git drivers: lkdtm: fix clang -Wformat warning 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 Fixes: 24cccab42c419 ("lkdtm/bugs: Adjust recursion test to avoid elision") Reported-by: Nathan Chancellor Suggested-by: Nathan Chancellor Suggested-by: Nick Desaulniers Tested-by: Nathan Chancellor Reviewed-by: Nathan Chancellor Acked-by: Kees Cook Signed-off-by: Justin Stitt Link: https://lore.kernel.org/r/20220721215706.4153027-1-justinstitt@google.com Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/misc/lkdtm/bugs.c b/drivers/misc/lkdtm/bugs.c index 009239a..48821f4 100644 --- a/drivers/misc/lkdtm/bugs.c +++ b/drivers/misc/lkdtm/bugs.c @@ -29,7 +29,7 @@ struct lkdtm_list { #if defined(CONFIG_FRAME_WARN) && (CONFIG_FRAME_WARN > 0) #define REC_STACK_SIZE (_AC(CONFIG_FRAME_WARN, UL) / 2) #else -#define REC_STACK_SIZE (THREAD_SIZE / 8) +#define REC_STACK_SIZE (THREAD_SIZE / 8UL) #endif #define REC_NUM_DEFAULT ((THREAD_SIZE / REC_STACK_SIZE) * 2)