hypverv/vmbus: include linux/bitops.h

From: Arnd Bergmann <[email protected]>

On arm64 randconfig builds, hyperv sometimes fails with this error:

In file included from drivers/hv/hv_trace.c:3:
In file included from drivers/hv/hyperv_vmbus.h:16:
In file included from arch/arm64/include/asm/sync_bitops.h:5:
arch/arm64/include/asm/bitops.h:11:2: error: only <linux/bitops.h> can be included directly
In file included from include/asm-generic/bitops/hweight.h:5:
include/asm-generic/bitops/arch_hweight.h:9:9: error: implicit declaration of function '__sw_hweight32' [-Werror,-Wimplicit-function-declaration] include/asm-generic/bitops/atomic.h:17:7: error: implicit declaration of function 'BIT_WORD' [-Werror,-Wimplicit-function-declaration]

Include the correct header first.

Signed-off-by Arnd Bergmann <[email protected]>

---
Not sure what started this, I first saw it on linux-next-20211015

---
 drivers/hv/hyperv_vmbus.h | 1 +
 1 file changed, 1 insertion(+)

drivers/hv/hyperv_vmbus.h +1 -0

index 42f3d9d123a1..d030577ad6a2 100644
@@ -13,6 +13,7 @@
 #define _HYPERV_VMBUS_H
 
 #include <linux/list.h>
+#include <linux/bitops.h>
 #include <asm/sync_bitops.h>
 #include <asm/hyperv-tlfs.h>
 #include <linux/atomic.h>

Signature · 1 line

2.29.2