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x86/amd_nb: Fix compile-testing without CONFIG_AMD_NB

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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@arndb.de>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Link: https://lore.kernel.org/r/20241029092329.3857004-1-arnd@kernel.org
This commit is contained in:
Arnd Bergmann 2024-10-29 09:23:20 +00:00 committed by Borislav Petkov (AMD)
parent 8198375843
commit fce9642c76
1 changed files with 4 additions and 1 deletions
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5
arch/x86/include/asm/amd_nb.h
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@ -116,7 +116,10 @@ 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