[raw2rgbpnm PATCH v3 1/3] Add explicit switch fallthrough notation

[Sakari Ailus <sakari.ailus@linux.intel.com>]

Use __attribute__((fallthrough)) instead of a comment this is taking
place, to make modern GCC happy.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
---
 raw2rgbpnm.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/raw2rgbpnm.c b/raw2rgbpnm.c
index baeb8efc863a..5df3ff7ab31d 100644
--- a/raw2rgbpnm.c
+++ b/raw2rgbpnm.c
@@ -362,7 +362,7 @@ static void raw_to_rgb(const struct format_info *info,
 
 	case V4L2_PIX_FMT_NV21:
 		color_pos = 0;
-		/* fallthrough */
+		__attribute__((fallthrough));
 	case V4L2_PIX_FMT_NV12:
 		src_luma = src;
 		src_chroma = &src[src_width * src_height];
@@ -576,7 +576,7 @@ static void raw_to_rgb(const struct format_info *info,
 	case V4L2_PIX_FMT_SRGGB10:
 		if (raw_layout_to_grbg(info, src, src_width, src_height, src_stride))
 			error("Can't convert RAW layout to GRBG");
-		/* fallthrough */
+		__attribute__((fallthrough));
 	case V4L2_PIX_FMT_SGRBG16:
 	case V4L2_PIX_FMT_SGRBG14:
 	case V4L2_PIX_FMT_SGRBG12:
@@ -620,7 +620,7 @@ static void raw_to_rgb(const struct format_info *info,
 	case V4L2_PIX_FMT_SRGGB8:
 		if (raw_layout_to_grbg(info, src, src_width, src_height, src_stride))
 			error("Can't convert RAW layout to GRBG");
-		/* fallthrough */
+		__attribute__((fallthrough));
 	case V4L2_PIX_FMT_SGRBG8:
 		buf = malloc(src_width * src_height * 3);
 		if (buf==NULL) error("out of memory");
@@ -688,7 +688,7 @@ static void raw_to_rgb(const struct format_info *info,
 
 	case V4L2_PIX_FMT_BGR24:
 		swaprb = !swaprb;
-		/* fallthrough */
+		__attribute__((fallthrough));
 	case V4L2_PIX_FMT_RGB24:
 		for (src_y = 0, dst_y = 0; dst_y < src_height; src_y++, dst_y++) {
 			for (src_x = 0, dst_x = 0; dst_x < src_width; ) {
-- 
2.47.3