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| author | Christophe Leroy <christophe.leroy@c-s.fr> | 2020-03-31 16:03:44 +0000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2020-06-02 20:59:11 +1000 |
| commit | 5f32e8361cba8c58c4f272a389296f489ecc2823 (patch) | |
| tree | 16b96fc255b85cc543f0f1c90a500c7d97ff3c8e /arch/powerpc/kernel/misc_32.S | |
| parent | 32746dfe4cf37f4077929601e8877a7fd02676e8 (diff) | |
| download | linux-5f32e8361cba8c58c4f272a389296f489ecc2823.tar.gz linux-5f32e8361cba8c58c4f272a389296f489ecc2823.tar.bz2 linux-5f32e8361cba8c58c4f272a389296f489ecc2823.zip | |
powerpc/32: Blacklist functions running with MMU disabled for kprobe
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>
Acked-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/3bf57066d05518644dee0840af69d36ab5086729.1585670437.git.christophe.leroy@c-s.fr
Diffstat (limited to 'arch/powerpc/kernel/misc_32.S')
| -rw-r--r-- | arch/powerpc/kernel/misc_32.S | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/misc_32.S b/arch/powerpc/kernel/misc_32.S index 70bb885b14c6..b24f866fef81 100644 --- a/arch/powerpc/kernel/misc_32.S +++ b/arch/powerpc/kernel/misc_32.S @@ -246,6 +246,7 @@ _GLOBAL(real_readb) sync isync blr +_ASM_NOKPROBE_SYMBOL(real_readb) /* * Do an IO access in real mode @@ -263,6 +264,7 @@ _GLOBAL(real_writeb) sync isync blr +_ASM_NOKPROBE_SYMBOL(real_writeb) #endif /* CONFIG_40x */ |