The patch titled
Subject: frv: add atomic64_add_unless()
has been added to the -mm tree. Its filename is
frv-add-atomic64_add_unless.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/frv-add-atomic64_add_unless.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/frv-add-atomic64_add_unless.patch
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------------------------------------------------------
From: Sudip Mukherjee <sudipm.mukherjee@xxxxxxxxx>
Subject: frv: add atomic64_add_unless()
The build of frv allmodconfig was failing with the error:
lib/atomic64_test.c:209:9: error:
implicit declaration of function 'atomic64_add_unless'
All the atomic64 operations were defined in frv, but atomic64_add_unless()
was not done. Implement atomic64_add_unless() as done in other arches.
Link: http://lkml.kernel.org/r/1484781236-6698-1-git-send-email-sudipm.mukherjee@xxxxxxxxx
Signed-off-by: Sudip Mukherjee <sudip.mukherjee@xxxxxxxxxxxxxxx>
Cc: David Howells <dhowells@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/frv/include/asm/atomic.h | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff -puN arch/frv/include/asm/atomic.h~frv-add-atomic64_add_unless arch/frv/include/asm/atomic.h
--- a/arch/frv/include/asm/atomic.h~frv-add-atomic64_add_unless
+++ a/arch/frv/include/asm/atomic.h
@@ -161,6 +161,22 @@ static __inline__ int __atomic_add_unles
return c;
}
+static inline int atomic64_add_unless(atomic64_t *v, long long i, long long u)
+{
+ long long c, old;
+
+ c = atomic64_read(v);
+ for (;;) {
+ if (unlikely(c == u))
+ break;
+ old = atomic64_cmpxchg(v, c, c + i);
+ if (likely(old == c))
+ break;
+ c = old;
+ }
+ return c != u;
+}
+
#define ATOMIC_OP(op) \
static inline int atomic_fetch_##op(int i, atomic_t *v) \
{ \
_
Patches currently in -mm which might be from sudipm.mukherjee@xxxxxxxxx are
frv-add-atomic64_add_unless.patch
m32r-fix-build-warning.patch
frv-pci-frv-fix-build-warning.patch
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