virtio_config: fix up warnings on parisc (c84f91e2) · Commits · 戴 / test

Apparently, on parisc le16_to_cpu returns an int. virtio_cread_le is very strict about type sizes so it causes a warning. Fix it up by casting to the correct type. Reported-by:

kernel test robot <lkp@intel.com> Signed-off-by:

Michael S. Tsirkin <mst@redhat.com> Link: https://lore.kernel.org/r/20200805235550.1451637-1-mst@redhat.com

include/linux/virtio_config.h

+4 −5

Original line number	Diff line number	Diff line
		@@ -357,10 +357,10 @@ static inline __virtio64 cpu_to_virtio64(struct virtio_device *vdev, u64 val)
		*/
		#define virtio_le_to_cpu(x) \
		_Generic((x), \
		__u8: (x), \
		__le16: le16_to_cpu(x), \
		__le32: le32_to_cpu(x), \
		__le64: le64_to_cpu(x) \
		__u8: (u8)(x), \
		__le16: (u16)le16_to_cpu(x), \
		__le32: (u32)le32_to_cpu(x), \
		__le64: (u64)le64_to_cpu(x) \
		)

		#define virtio_cpu_to_le(x, m) \
		@@ -400,7 +400,6 @@ static inline __virtio64 cpu_to_virtio64(struct virtio_device *vdev, u64 val)
		*(ptr) = virtio_le_to_cpu(virtio_cread_v); \
		} while(0)

		/* Config space accessors. */
		#define virtio_cwrite_le(vdev, structname, member, ptr) \
		do { \
		typeof(((structname*)0)->member) virtio_cwrite_v = \

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