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authorNaveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>2017-09-22 14:40:45 +0530
committerMichael Ellerman <mpe@ellerman.id.au>2017-10-04 23:42:17 +1100
commitbf3a91251735863fcb230c96e984ebcacee820d9 (patch)
treea54610879baee8bc1b545f6e958e97aae080eec4 /arch/powerpc/kernel/trace
parenta7b440383f9b078254d38ab6a3672810f1eca74f (diff)
powerpc/kprobes: Clean up jprobe detection in livepatch handler
In commit c05b8c4474c03 ("powerpc/kprobes: Skip livepatch_handler() for jprobes"), we added a helper is_current_kprobe_addr() to help detect if the modified regs->nip was due to a jprobe or livepatch. Masami felt that the function name was not quite clear. To that end, this patch renames is_current_kprobe_addr() to __is_active_jprobe() and adds a comment to (hopefully) better clarify the purpose of this helper. The helper has also now been moved to kprobes-ftrace.c so that it is only available for KPROBES_ON_FTRACE. Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/kernel/trace')
-rw-r--r--arch/powerpc/kernel/trace/ftrace_64_mprofile.S4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/powerpc/kernel/trace/ftrace_64_mprofile.S b/arch/powerpc/kernel/trace/ftrace_64_mprofile.S
index c98e90b4ea7b..c1cfcce0551d 100644
--- a/arch/powerpc/kernel/trace/ftrace_64_mprofile.S
+++ b/arch/powerpc/kernel/trace/ftrace_64_mprofile.S
@@ -110,9 +110,9 @@ ftrace_call:
/* NIP has not been altered, skip over further checks */
beq 1f
- /* Check if there is an active kprobe on us */
+ /* Check if there is an active jprobe on us */
subi r3, r14, 4
- bl is_current_kprobe_addr
+ bl __is_active_jprobe
nop
/*