--- /dev/null
+From 50c697215a8cc22f0e58c88f06f2716c05a26e85 Mon Sep 17 00:00:00 2001
+From: Sam James <sam@gentoo.org>
+Date: Wed, 16 Nov 2022 18:26:34 +0000
+Subject: kbuild: fix -Wimplicit-function-declaration in license_is_gpl_compatible
+
+From: Sam James <sam@gentoo.org>
+
+commit 50c697215a8cc22f0e58c88f06f2716c05a26e85 upstream.
+
+Add missing <linux/string.h> include for strcmp.
+
+Clang 16 makes -Wimplicit-function-declaration an error by default.
+Unfortunately, out of tree modules may use this in configure scripts,
+which means failure might cause silent miscompilation or misconfiguration.
+
+For more information, see LWN.net [0] or LLVM's Discourse [1], gentoo-dev@ [2],
+or the (new) c-std-porting mailing list [3].
+
+[0] https://lwn.net/Articles/913505/
+[1] https://discourse.llvm.org/t/configure-script-breakage-with-the-new-werror-implicit-function-declaration/65213
+[2] https://archives.gentoo.org/gentoo-dev/message/dd9f2d3082b8b6f8dfbccb0639e6e240
+[3] hosted at lists.linux.dev.
+
+[akpm@linux-foundation.org: remember "linux/"]
+Link: https://lkml.kernel.org/r/20221116182634.2823136-1-sam@gentoo.org
+Signed-off-by: Sam James <sam@gentoo.org>
+Cc: <stable@vger.kernel.org>
+Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ include/linux/license.h | 2 ++
+ 1 file changed, 2 insertions(+)
+
+--- a/include/linux/license.h
++++ b/include/linux/license.h
+@@ -1,6 +1,8 @@
+ #ifndef __LICENSE_H
+ #define __LICENSE_H
+
++#include <linux/string.h>
++
+ static inline int license_is_gpl_compatible(const char *license)
+ {
+ return (strcmp(license, "GPL") == 0
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
- arch/s390/kernel/crash_dump.c | 2 +-
+ arch/s390/kernel/crash_dump.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
-diff --git a/arch/s390/kernel/crash_dump.c b/arch/s390/kernel/crash_dump.c
-index 167135294ca5..d246cb23e341 100644
--- a/arch/s390/kernel/crash_dump.c
+++ b/arch/s390/kernel/crash_dump.c
@@ -42,7 +42,7 @@ struct save_area {
u64 timer;
u64 todcmp;
u64 vxrs_low[16];
---
-2.35.1
-