This is a note to let you know that I've just added the patch titled
x86/amd_nb: Fix compile-testing without CONFIG_AMD_NB
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
x86-amd_nb-fix-compile-testing-without-config_amd_nb.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit a55861aa4ae598e37c1d770ec2d60f542618bd2a
Author: Arnd Bergmann <arnd@xxxxxxxx>
Date: Tue Oct 29 09:23:20 2024 +0000
x86/amd_nb: Fix compile-testing without CONFIG_AMD_NB
[ Upstream commit fce9642c765a18abd1db0339a7d832c29b68456a ]
node_to_amd_nb() is defined to NULL in non-AMD configs:
drivers/platform/x86/amd/hsmp/plat.c: In function 'init_platform_device':
drivers/platform/x86/amd/hsmp/plat.c:165:68: error: dereferencing 'void *' pointer [-Werror]
165 | sock->root = node_to_amd_nb(i)->root;
| ^~
drivers/platform/x86/amd/hsmp/plat.c:165:68: error: request for member 'root' in something not a structure or union
Users of the interface who also allow COMPILE_TEST will cause the above build
error so provide an inline stub to fix that.
[ bp: Massage commit message. ]
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Signed-off-by: Borislav Petkov (AMD) <bp@xxxxxxxxx>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@xxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20241029092329.3857004-1-arnd@xxxxxxxxxx
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/arch/x86/include/asm/amd_nb.h b/arch/x86/include/asm/amd_nb.h
index 455066a06f607..d561f7866fa16 100644
--- a/arch/x86/include/asm/amd_nb.h
+++ b/arch/x86/include/asm/amd_nb.h
@@ -118,7 +118,10 @@ static inline bool amd_gart_present(void)
#define amd_nb_num(x) 0
#define amd_nb_has_feature(x) false
-#define node_to_amd_nb(x) NULL
+static inline struct amd_northbridge *node_to_amd_nb(int node)
+{
+ return NULL;
+}
#define amd_gart_present(x) false
#endif
