* [PATCH] tools: hv: remove unused rte_smp_mb()
@ 2026-10-11 22:33 Sasha Levin
0 siblings, 0 replies; only message in thread
From: Sasha Levin @ 2026-10-11 22:33 UTC (permalink / raw)
To: K. Y. Srinivasan, Haiyang Zhang, Wei Liu, Dexuan Cui, Long Li,
Nathan Chancellor, Nick Desaulniers, Bill Wendling, Justin Stitt,
Mary Hardy, Saurabh Sengar, Greg Kroah-Hartman
Cc: Sasha Levin, linux-hyperv, linux-kernel, llvm
rte_smp_mb() has never been used, and its "static inline __always_inline"
declares inline twice, so clang warns:
vmbus_bufring.c:61:15: warning: duplicate 'inline' declaration specifier [-Wduplicate-decl-specifier]
vmbus_bufring.c:62:1: warning: unused function 'rte_smp_mb' [-Wunused-function]
Remove it.
Fixes: 45bab4d746510 ("tools: hv: Add vmbus_bufring")
Assisted-by: LLM
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
tools/hv/vmbus_bufring.c | 6 ------
1 file changed, 6 deletions(-)
diff --git a/tools/hv/vmbus_bufring.c b/tools/hv/vmbus_bufring.c
index bac32c1109df8..23542e59a2ee9 100644
--- a/tools/hv/vmbus_bufring.c
+++ b/tools/hv/vmbus_bufring.c
@@ -58,12 +58,6 @@ void vmbus_br_setup(struct vmbus_br *br, void *buf, unsigned int blen)
br->dsize = blen - sizeof(struct vmbus_bufring);
}
-static inline __always_inline void
-rte_smp_mb(void)
-{
- asm volatile("lock addl $0, -128(%%rsp); " ::: "memory");
-}
-
static inline int
rte_atomic32_cmpset(volatile uint32_t *dst, uint32_t exp, uint32_t src)
{
--
2.53.0
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2026-10-11 22:33 [PATCH] tools: hv: remove unused rte_smp_mb() Sasha Levin
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