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authorMasami Hiramatsu <mhiramat@kernel.org>2021-09-14 16:40:45 +0200
committerSteven Rostedt (VMware) <rostedt@goodmis.org>2021-10-01 03:24:06 +0200
commit96fed8ac2bb64ab45497fdd8e3d390165b7a9be8 (patch)
tree41528c6cc273ae7e6a2e59301dc5e840cf484df9 /arch/sh/kernel/kprobes.c
parentkprobes: treewide: Replace arch_deref_entry_point() with dereference_symbol_d... (diff)
downloadlinux-96fed8ac2bb64ab45497fdd8e3d390165b7a9be8.tar.xz
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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/sh/kernel/kprobes.c')
-rw-r--r--arch/sh/kernel/kprobes.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/sh/kernel/kprobes.c b/arch/sh/kernel/kprobes.c
index 1c7f358ef0be..8e76a35e6e33 100644
--- a/arch/sh/kernel/kprobes.c
+++ b/arch/sh/kernel/kprobes.c
@@ -303,7 +303,7 @@ static void __used kretprobe_trampoline_holder(void)
*/
int __kprobes trampoline_probe_handler(struct kprobe *p, struct pt_regs *regs)
{
- regs->pc = __kretprobe_trampoline_handler(regs, &kretprobe_trampoline, NULL);
+ regs->pc = __kretprobe_trampoline_handler(regs, NULL);
return 1;
}