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authorDave Airlie <airlied@redhat.com>2024-04-22 14:35:22 +1000
committerDave Airlie <airlied@redhat.com>2024-04-22 14:35:52 +1000
commit0208ca55aa9c9b997da1f5bc45c4e98916323f08 (patch)
treee3130b2116f7738ac7cd79ad71698f545bb7db69 /include/asm-generic/barrier.h
parent2871ec40994912ce4f2e2d5072a428eb84c77d3c (diff)
parented30a4a51bb196781c8058073ea720133a65596f (diff)
Backmerge tag 'v6.9-rc5' into drm-next
Linux 6.9-rc5 I've had a persistent msm failure on clang, and the fix is in fixes so just pull it back to fix that. Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'include/asm-generic/barrier.h')
-rw-r--r--include/asm-generic/barrier.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/asm-generic/barrier.h b/include/asm-generic/barrier.h
index 0c0695763bea..d4f581c1e21d 100644
--- a/include/asm-generic/barrier.h
+++ b/include/asm-generic/barrier.h
@@ -294,5 +294,13 @@ do { \
#define io_stop_wc() do { } while (0)
#endif
+/*
+ * Architectures that guarantee an implicit smp_mb() in switch_mm()
+ * can override smp_mb__after_switch_mm.
+ */
+#ifndef smp_mb__after_switch_mm
+# define smp_mb__after_switch_mm() smp_mb()
+#endif
+
#endif /* !__ASSEMBLY__ */
#endif /* __ASM_GENERIC_BARRIER_H */