Commit 1a266b6d authored by Michael S. Tsirkin's avatar Michael S. Tsirkin
Browse files

gpio: virtio: reorder fields to reduce struct padding 



Reorder struct virtio_gpio_line fields to place the DMA buffers
(req/res) last.

This eliminates the padding from aligning struct size on
ARCH_DMA_MINALIGN.

Acked-by: default avatarViresh Kumar <viresh.kumar@linaro.org>
Message-ID: <f1221bbc120df6adaba9006710a517f1e84a10b2.1767601130.git.mst@redhat.com>
Acked-by: default avatarBartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Signed-off-by: default avatarMichael S. Tsirkin <mst@redhat.com>
parent 29615fe3

drivers/gpio/gpio-virtio.c

+2 −1
Original line number Diff line number Diff line
@@ -26,11 +26,12 @@ struct virtio_gpio_line { 
	struct mutex lock; /* Protects line operation */

	struct completion completion;



	unsigned int rxlen;



	__dma_from_device_group_begin();

	struct virtio_gpio_request req;

	struct virtio_gpio_response res;

	__dma_from_device_group_end();

	unsigned int rxlen;

};



struct vgpio_irq_line {