The driver uses GENMASK() but does not include <linux/bits.h>.

It is good practice to directly include all headers used, it avoids
implicit dependencies and spurious breakage if someone rearranges
headers and causes the implicit include to vanish.

Include the missing header.

Fixes: 1224e29572f6 ("spi: s3c64xx: Fix large transfers with DMA")
Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
---
 drivers/spi/spi-s3c64xx.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c
index c1cbc4780a3b..2b5bb7604526 100644
--- a/drivers/spi/spi-s3c64xx.c
+++ b/drivers/spi/spi-s3c64xx.c
@@ -3,6 +3,7 @@
 // Copyright (c) 2009 Samsung Electronics Co., Ltd.
 //      Jaswinder Singh <jassi.brar@samsung.com>
 
+#include <linux/bits.h>
 #include <linux/init.h>
 #include <linux/module.h>
 #include <linux/interrupt.h>
-- 
2.43.0.594.gd9cf4e227d-goog

On Mon, 5 Feb 2024 at 12:45, Tudor Ambarus <tudor.ambarus@linaro.org> wrote:
>
> The driver uses GENMASK() but does not include <linux/bits.h>.
>
> It is good practice to directly include all headers used, it avoids
> implicit dependencies and spurious breakage if someone rearranges
> headers and causes the implicit include to vanish.
>
> Include the missing header.
>
> Fixes: 1224e29572f6 ("spi: s3c64xx: Fix large transfers with DMA")
> Signed-off-by: Tudor Ambarus <tudor.ambarus@linaro.org>
> ---

Reviewed-by: Peter Griffin <peter.griffin@linaro.org>