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| author | Arnd Bergmann <arnd@arndb.de> | 2018-01-02 12:00:22 +0100 |
|---|---|---|
| committer | Max Filippov <jcmvbkbc@gmail.com> | 2018-01-02 03:25:41 -0800 |
| commit | 32bb954dbf6db98562cb4477608dc546421caaf6 (patch) | |
| tree | 300f1602fa9492e0ef10a1ef03c023a0fd742614 | |
| parent | fed566ca44ce99ff4604e3af941049f9a6bba405 (diff) | |
| download | linux-32bb954dbf6db98562cb4477608dc546421caaf6.tar.gz linux-32bb954dbf6db98562cb4477608dc546421caaf6.tar.bz2 linux-32bb954dbf6db98562cb4477608dc546421caaf6.zip | |
xtensa: shut up gcc-8 warnings
Many uses of strncpy() on xtensa causes a warning like
arch/xtensa/include/asm/string.h:56:42: warning: array subscript is above array bounds [-Warray-bounds]
: "0" (__dest), "1" (__src), "r" (__src+__n)
This avoids the warning by turning the pointer arithmetic into an
integer operation that does not get checked the same way.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
| -rw-r--r-- | arch/xtensa/include/asm/string.h | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/xtensa/include/asm/string.h b/arch/xtensa/include/asm/string.h index 586bad9fe187..89b51a0c752f 100644 --- a/arch/xtensa/include/asm/string.h +++ b/arch/xtensa/include/asm/string.h @@ -53,7 +53,7 @@ static inline char *strncpy(char *__dest, const char *__src, size_t __n) "bne %1, %5, 1b\n" "2:" : "=r" (__dest), "=r" (__src), "=&r" (__dummy) - : "0" (__dest), "1" (__src), "r" (__src+__n) + : "0" (__dest), "1" (__src), "r" ((uintptr_t)__src+__n) : "memory"); return __xdest; @@ -101,7 +101,7 @@ static inline int strncmp(const char *__cs, const char *__ct, size_t __n) "2:\n\t" "sub %2, %2, %3" : "=r" (__cs), "=r" (__ct), "=&r" (__res), "=&r" (__dummy) - : "0" (__cs), "1" (__ct), "r" (__cs+__n)); + : "0" (__cs), "1" (__ct), "r" ((uintptr_t)__cs+__n)); return __res; } |