linux/include/media/jpeg.h
Geert Uytterhoeven 72a6127e93 media: Add common header file with JPEG marker definitions
When compile-testing on mips/RB532 with W=1:

    arch/mips/include/asm/mach-rc32434/rb.h:13: note: this is the location of the previous definition
       13 | #define RST  (1 << 15)
	  |
    drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_parse.c:15: warning: "RST" redefined
       15 | #define RST 0xd0
	  |
    drivers/media/platform/renesas/rcar_jpu.c:77: warning: "RST" redefined
       77 | #define RST 0xd0
	  |

"RST" is indeed a name too short to be conflict-free.

Fix this by creating a common <media/jpeg.h> header file, containing
definitions for all JPEG markers used, prefixed by "JPEG_MARKER_", based
on the existing private definitions in the Samsung S5P JPEG driver, and
convert all affected drivers.

Reported-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/oe-kbuild-all/202304152346.hJOPxPRh-lkp@intel.com/
Link: https://lore.kernel.org/oe-kbuild-all/202304150059.bHUyuriy-lkp@intel.com/
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Andrzej Pietrasiewicz <andrzejtp2010@gmail.com> (s5p-jpeg)
Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
2023-05-25 16:21:21 +02:00

21 lines
500 B
C

/* SPDX-License-Identifier: GPL-2.0-only */
#ifndef _MEDIA_JPEG_H_
#define _MEDIA_JPEG_H_
/* JPEG markers */
#define JPEG_MARKER_TEM 0x01
#define JPEG_MARKER_SOF0 0xc0
#define JPEG_MARKER_DHT 0xc4
#define JPEG_MARKER_RST 0xd0
#define JPEG_MARKER_SOI 0xd8
#define JPEG_MARKER_EOI 0xd9
#define JPEG_MARKER_SOS 0xda
#define JPEG_MARKER_DQT 0xdb
#define JPEG_MARKER_DRI 0xdd
#define JPEG_MARKER_DHP 0xde
#define JPEG_MARKER_APP0 0xe0
#define JPEG_MARKER_COM 0xfe
#endif /* _MEDIA_JPEG_H_ */