* FAILED: Patch "LoongArch: Use %px to print unmodified unwinding address" failed to apply to 6.1-stable tree
@ 2026-03-01 1:46 Sasha Levin
0 siblings, 0 replies; only message in thread
From: Sasha Levin @ 2026-03-01 1:46 UTC (permalink / raw)
To: stable, yangtiezhu; +Cc: Huacai Chen, loongarch
The patch below does not apply to the 6.1-stable tree.
If someone wants it applied there, or to any other stable or longterm
tree, then please email the backport, including the original git commit
id to <stable@vger.kernel.org>.
Thanks,
Sasha
------------------ original commit in Linus's tree ------------------
From 77403a06d845db1caf9a6b0867b43e9dd8de8e4a Mon Sep 17 00:00:00 2001
From: Tiezhu Yang <yangtiezhu@loongson.cn>
Date: Tue, 10 Feb 2026 19:31:13 +0800
Subject: [PATCH] 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>
---
arch/loongarch/kernel/unwind_orc.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/loongarch/kernel/unwind_orc.c b/arch/loongarch/kernel/unwind_orc.c
index 8a6e3429a860e..d6b3688a1ce97 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;
}
--
2.51.0
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2026-03-01 1:46 FAILED: Patch "LoongArch: Use %px to print unmodified unwinding address" failed to apply to 6.1-stable tree Sasha Levin
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