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Subject[PATCH 05/12] powerpc/mem: Blacklist flush_dcache_icache_phys() for kprobe
Date
kprobe does not handle events happening in real mode, all
functions running with MMU disabled have to be blacklisted.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
---
arch/powerpc/mm/mem.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c
index 9b4f5fb719e0..bcb6af6ba29a 100644
--- a/arch/powerpc/mm/mem.c
+++ b/arch/powerpc/mm/mem.c
@@ -32,6 +32,7 @@
#include <linux/vmalloc.h>
#include <linux/memremap.h>
#include <linux/dma-direct.h>
+#include <linux/kprobes.h>

#include <asm/pgalloc.h>
#include <asm/prom.h>
@@ -466,6 +467,7 @@ static void flush_dcache_icache_phys(unsigned long physaddr)
: "r" (nb), "r" (msr), "i" (bytes), "r" (msr0)
: "ctr", "memory");
}
+NOKPROBE_SYMBOL(flush_dcache_icache_phys)
#endif // !defined(CONFIG_PPC_8xx) && !defined(CONFIG_PPC64)

/*
--
2.25.0
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