From: Michal Suchanek msuchanek@suse.de
stable inclusion from linux-4.19.207 commit 65c923f99bdd09e5f6e102d3793bf366d846d94c
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[ Upstream commit a6cae77f1bc89368a4e2822afcddc45c3062d499 ]
commit 7c6986ade69e ("powerpc/stacktrace: Fix spurious "stale" traces in raise_backtrace_ipi()") introduces udelay() call without including the linux/delay.h header. This may happen to work on master but the header that declares the functionshould be included nonetheless.
Fixes: 7c6986ade69e ("powerpc/stacktrace: Fix spurious "stale" traces in raise_backtrace_ipi()") Signed-off-by: Michal Suchanek msuchanek@suse.de Signed-off-by: Michael Ellerman mpe@ellerman.id.au Link: https://lore.kernel.org/r/20210729180103.15578-1-msuchanek@suse.de Signed-off-by: Sasha Levin sashal@kernel.org Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- arch/powerpc/kernel/stacktrace.c | 1 + 1 file changed, 1 insertion(+)
diff --git a/arch/powerpc/kernel/stacktrace.c b/arch/powerpc/kernel/stacktrace.c index 23b5f755e419b..dadcc8bab336a 100644 --- a/arch/powerpc/kernel/stacktrace.c +++ b/arch/powerpc/kernel/stacktrace.c @@ -8,6 +8,7 @@ * Copyright 2018 Nick Piggin, Michael Ellerman, IBM Corp. */
+#include <linux/delay.h> #include <linux/export.h> #include <linux/kallsyms.h> #include <linux/module.h>