VisionFive2 Linux kernel

StarFive Tech Linux Kernel for VisionFive (JH7110) boards (mirror)

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author: Peter Zijlstra <peterz@infradead.org> 2021-05-25 09:25:19 +0200 committer: Peter Zijlstra <peterz@infradead.org> 2021-06-01 16:00:08 +0200 commit: ec6aba3d2be1ed75b3f4c894bb64a36d40db1f55 parent: 9ce4d216fe8b581e4da4406461a4cfc9acbfa679
Commit Summary:
kprobes: Remove kprobe::fault_handler
Diffstat:
1 file changed, 0 insertions, 10 deletions
diff --git a/arch/csky/kernel/probes/kprobes.c b/arch/csky/kernel/probes/kprobes.c
index 589f090f48b9..e0e973e49770 100644
--- a/arch/csky/kernel/probes/kprobes.c
+++ b/arch/csky/kernel/probes/kprobes.c
@@ -301,16 +301,6 @@ int __kprobes kprobe_fault_handler(struct pt_regs *regs, unsigned int trapnr)
 		 */
 		kprobes_inc_nmissed_count(cur);
 
-		/*
-		 * We come here because instructions in the pre/post
-		 * handler caused the page_fault, this could happen
-		 * if handler tries to access user space by
-		 * copy_from_user(), get_user() etc. Let the
-		 * user-specified handler try to fix it first.
-		 */
-		if (cur->fault_handler && cur->fault_handler(cur, regs, trapnr))
-			return 1;
-
 		/*
 		 * In case the user-specified fault handler returned
 		 * zero, try to fix up.