diff options
| author |   Bjorn Andersson <bjorn.andersson@linaro.org> | 2018-05-09 11:58:20 -0700 |
|---|---|---|
| committer | Bjorn Andersson <bjorn.andersson@linaro.org> | 2018-05-09 11:59:07 -0700 |
| commit | 9935448e207cc9e7e5fd3c6aa3282ff503f263c4 (patch) | |
| tree | a43f75f5dd940664f468418d59d3879ffff75b8f /tools/include/linux/compiler.h | |
| parent | remoteproc: Remove depends on HAS_DMA in case of platform dependency (diff) | |
| parent | Linux 4.17-rc4 (diff) | |
Merge tag 'v4.17-rc4' into rproc-next
Pick up fixes from rproc-v4.17-1
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Diffstat (limited to 'tools/include/linux/compiler.h')
| -rw-r--r-- | tools/include/linux/compiler.h | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/tools/include/linux/compiler.h b/tools/include/linux/compiler.h index 04e32f965ad7..1827c2f973f9 100644 --- a/tools/include/linux/compiler.h +++ b/tools/include/linux/compiler.h @@ -151,11 +151,21 @@ static __always_inline void __write_once_size(volatile void *p, void *res, int s * required ordering. */ -#define READ_ONCE(x) \ - ({ union { typeof(x) __val; char __c[1]; } __u; __read_once_size(&(x), __u.__c, sizeof(x)); __u.__val; }) +#define READ_ONCE(x) \ +({ \ + union { typeof(x) __val; char __c[1]; } __u = \ + { .__c = { 0 } }; \ + __read_once_size(&(x), __u.__c, sizeof(x)); \ + __u.__val; \ +}) -#define WRITE_ONCE(x, val) \ - ({ union { typeof(x) __val; char __c[1]; } __u = { .__val = (val) }; __write_once_size(&(x), __u.__c, sizeof(x)); __u.__val; }) +#define WRITE_ONCE(x, val) \ +({ \ + union { typeof(x) __val; char __c[1]; } __u = \ + { .__val = (val) }; \ + __write_once_size(&(x), __u.__c, sizeof(x)); \ + __u.__val; \ +}) #ifndef __fallthrough |