From: Tiezhu Yang <yangtiezhu@loongson.cn>
Date: Tue, 10 Feb 2026 11:31:13 +0000 (+0800)
Subject: LoongArch: Use %px to print unmodified unwinding address
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=77403a06d845db1caf9a6b0867b43e9dd8de8e4a;p=thirdparty%2Fkernel%2Fstable.git

LoongArch: Use %px to print unmodified unwinding address

Currently, use %p to prevent leaking information about the kernel memory
layout when printing the PC address, but the kernel log messages are not
useful to debug problem if bt_address() returns 0. Given that the type of
"pc" variable is unsigned long, it should use %px to print the unmodified
unwinding address.

Cc: stable@vger.kernel.org
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
---

diff --git a/arch/loongarch/kernel/unwind_orc.c b/arch/loongarch/kernel/unwind_orc.c
index 8a6e3429a860..d6b3688a1ce9 100644
--- a/arch/loongarch/kernel/unwind_orc.c
+++ b/arch/loongarch/kernel/unwind_orc.c
@@ -494,7 +494,7 @@ bool unwind_next_frame(struct unwind_state *state)
 
 	state->pc = bt_address(pc);
 	if (!state->pc) {
-		pr_err("cannot find unwind pc at %p\n", (void *)pc);
+		pr_err("cannot find unwind pc at %px\n", (void *)pc);
 		goto err;
 	}