Fix a build error on CONFIG_UML, which does not support (provide)
wbinvd(). UML can use the generic mb() instead.
../drivers/gpu/drm/r128/ati_pcigart.c: In function ‘drm_ati_pcigart_init’:
../drivers/gpu/drm/r128/ati_pcigart.c:218:2: error: implicit declaration of
function ‘wbinvd’ [-Werror=implicit-function-declaration]
wbinvd();
^~~~~~
Fixes: 68f5d3f3b654 ("um: add PCI over virtio emulation driver")
Signed-off-by: Randy Dunlap <[email protected]>
Cc: David Airlie <[email protected]>
Cc: Daniel Vetter <[email protected]>
Cc: [email protected]
Cc: Jeff Dike <[email protected]>
Cc: Richard Weinberger <[email protected]>
Cc: Anton Ivanov <[email protected]>
Cc: [email protected]
Cc: Sam Ravnborg <[email protected]>
---
v2: update Fixes: tag (Johannes)
Use simple CONFIG_X86 instead of a more complicated expression. (Sam)
drivers/gpu/drm/r128/ati_pcigart.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- linux-next-20211007.orig/drivers/gpu/drm/r128/ati_pcigart.c
+++ linux-next-20211007/drivers/gpu/drm/r128/ati_pcigart.c
@@ -215,7 +215,7 @@ int drm_ati_pcigart_init(struct drm_devi
}
ret = 0;
-#if defined(__i386__) || defined(__x86_64__)
+#ifdef CONFIG_X86
wbinvd();
#else
mb();
