Commit a64371b5 authored by Christophe Leroy's avatar Christophe Leroy Committed by Michael Ellerman
Browse files

powerpc/mem: Blacklist flush_dcache_icache_phys() for kprobe 



kprobe does not handle events happening in real mode, all
functions running with MMU disabled have to be blacklisted.

Signed-off-by: default avatarChristophe Leroy <christophe.leroy@c-s.fr>
Acked-by: default avatarNaveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Signed-off-by: default avatarMichael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/eaab3bff961c3bfe149f1d0bd3593291ef939dcc.1585670437.git.christophe.leroy@c-s.fr
parent 32a82067

arch/powerpc/mm/mem.c

+2 −0
Original line number Diff line number Diff line
@@ -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>
@@ -468,6 +469,7 @@ 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)



/*