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authorMasami Hiramatsu <mhiramat@kernel.org>2021-09-14 23:40:45 +0900
committerSteven Rostedt (VMware) <rostedt@goodmis.org>2021-09-30 21:24:06 -0400
commit96fed8ac2bb64ab45497fdd8e3d390165b7a9be8 (patch)
tree41528c6cc273ae7e6a2e59301dc5e840cf484df9 /arch/csky/kernel
parentf2ec8d9a3b8c0f22cd6a2b4f5a2d9aee5206e3b7 (diff)
downloadlinux-96fed8ac2bb64ab45497fdd8e3d390165b7a9be8.tar.bz2
kprobes: treewide: Remove trampoline_address from kretprobe_trampoline_handler()
The __kretprobe_trampoline_handler() callback, called from low level arch kprobes methods, has the 'trampoline_address' parameter, which is entirely superfluous as it basically just replicates: dereference_kernel_function_descriptor(kretprobe_trampoline) In fact we had bugs in arch code where it wasn't replicated correctly. So remove this superfluous parameter and use kretprobe_trampoline_addr() instead. Link: https://lkml.kernel.org/r/163163044546.489837.13505751885476015002.stgit@devnote2 Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Tested-by: Andrii Nakryiko <andrii@kernel.org> Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
Diffstat (limited to 'arch/csky/kernel')
-rw-r--r--arch/csky/kernel/probes/kprobes.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/csky/kernel/probes/kprobes.c b/arch/csky/kernel/probes/kprobes.c
index 632407bf45d5..784c5aba7f66 100644
--- a/arch/csky/kernel/probes/kprobes.c
+++ b/arch/csky/kernel/probes/kprobes.c
@@ -386,7 +386,7 @@ int __init arch_populate_kprobe_blacklist(void)
void __kprobes __used *trampoline_probe_handler(struct pt_regs *regs)
{
- return (void *)kretprobe_trampoline_handler(regs, &kretprobe_trampoline, NULL);
+ return (void *)kretprobe_trampoline_handler(regs, NULL);
}
void __kprobes arch_prepare_kretprobe(struct kretprobe_instance *ri,