From: Clément Léger <clement.leger@bootlin.com>
Date: Tue, 8 Nov 2022 09:43:22 +0000 (+0100)
Subject: mm/kmemleak: use %pK to display kernel pointers in backtrace
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=3a6f33d86baa8103c80f62edd9393e9f7bf25d72;p=linux.git

mm/kmemleak: use %pK to display kernel pointers in backtrace

Currently, %p is used to display kernel pointers in backtrace which result
in a hashed value that is not usable to correlate the address for debug.
Use %pK which will respect the kptr_restrict configuration value and thus
allow to extract meaningful information from the backtrace.

Link: https://lkml.kernel.org/r/20221108094322.73492-1-clement.leger@bootlin.com
Signed-off-by: Clément Léger <clement.leger@bootlin.com>
Cc: Alexandre Belloni <alexandre.belloni@bootlin.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

diff --git a/mm/kmemleak.c b/mm/kmemleak.c
index dc7db6a2a0ddd..92f670edbf518 100644
--- a/mm/kmemleak.c
+++ b/mm/kmemleak.c
@@ -361,7 +361,7 @@ static void print_unreferenced(struct seq_file *seq,
 
 	for (i = 0; i < nr_entries; i++) {
 		void *ptr = (void *)entries[i];
-		warn_or_seq_printf(seq, "    [<%p>] %pS\n", ptr, ptr);
+		warn_or_seq_printf(seq, "    [<%pK>] %pS\n", ptr, ptr);
 	}
 }