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authorEric Anholt <[email protected]>2017-10-17 15:41:25 -0700
committerEric Anholt <[email protected]>2017-10-24 10:51:18 -0700
commite91c3540fc620b39a16d5bce9fd75aa0ddd7ed7e (patch)
tree431871a42483136c8007be921384b5be7487f385 /src
parenteed9685dd6619ec7598e8c3fd81117d36010510d (diff)
i965: Fix memmem compiler warnings.
gcc is throwing this warning in my meson build: ../src/intel/compiler/brw_eu_validate.c:50:11: warning argument 1 null where non-null expected [-Wnonnull] return memmem(haystack.str, haystack.len, ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ needle.str, needle.len) != NULL; ~~~~~~~~~~~~~~~~~~~~~~~ The first check for CONTAINS has a NULL error_msg.str and 0 len. The glibc implementation will exit without looking at any haystack bytes if haystack.len < needle.len, so this was safe, but silence the warning anyway by guarding against implementation variablility. Fixes: 122ef3799d56 ("i965: Only insert error message if not already present") Reviewed-by: Matt Turner <[email protected]>
Diffstat (limited to 'src')
-rw-r--r--src/intel/compiler/brw_eu_validate.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/intel/compiler/brw_eu_validate.c b/src/intel/compiler/brw_eu_validate.c
index 9f72c650ddb..f359599c38d 100644
--- a/src/intel/compiler/brw_eu_validate.c
+++ b/src/intel/compiler/brw_eu_validate.c
@@ -47,7 +47,8 @@ cat(struct string *dest, const struct string src)
static bool
contains(const struct string haystack, const struct string needle)
{
- return memmem(haystack.str, haystack.len, needle.str, needle.len) != NULL;
+ return haystack.str && memmem(haystack.str, haystack.len,
+ needle.str, needle.len) != NULL;
}
#define CONTAINS(haystack, needle) \
contains(haystack, (struct string){needle, strlen(needle)})