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Date: Mon, 6 Sep 2021 21:40:22 -0700
From: Randy Dunlap <rdunlap@...radead.org>
To: linux-kernel@...r.kernel.org
Cc: Randy Dunlap <rdunlap@...radead.org>,
kernel test robot <lkp@...el.com>,
Mauro Carvalho Chehab <mchehab@...nel.org>,
linux-media@...r.kernel.org,
Andrzej Pietrasiewicz <andrzejtp2010@...il.com>,
Jacek Anaszewski <jacek.anaszewski@...il.com>,
Sylwester Nawrocki <s.nawrocki@...sung.com>,
linux-arm-kernel@...ts.infradead.org
Subject: [PATCH v2] media: s5p-jpeg: rename JPEG marker constants to prevent build warnings
The use of a macro named 'RST' conflicts with one of the same name
in arch/mips/include/asm/mach-rc32434/rb.h. This causes build
warnings on some MIPS builds.
Change the names of the JPEG marker constants to be in their own
namespace to fix these build warnings and to prevent other similar
problems in the future.
Fixes these build warnings:
In file included from ../drivers/media/platform/s5p-jpeg/jpeg-hw-exynos3250.c:14:
../drivers/media/platform/s5p-jpeg/jpeg-core.h:43: warning: "RST" redefined
43 | #define RST 0xd0
|
../arch/mips/include/asm/mach-rc32434/rb.h:13: note: this is the location of the previous definition
13 | #define RST (1 << 15)
In file included from ../drivers/media/platform/s5p-jpeg/jpeg-hw-s5p.c:13:
../drivers/media/platform/s5p-jpeg/jpeg-core.h:43: warning: "RST" redefined
43 | #define RST 0xd0
../arch/mips/include/asm/mach-rc32434/rb.h:13: note: this is the location of the previous definition
13 | #define RST (1 << 15)
In file included from ../drivers/media/platform/s5p-jpeg/jpeg-hw-exynos4.c:12:
../drivers/media/platform/s5p-jpeg/jpeg-core.h:43: warning: "RST" redefined
43 | #define RST 0xd0
../arch/mips/include/asm/mach-rc32434/rb.h:13: note: this is the location of the previous definition
13 | #define RST (1 << 15)
In file included from ../drivers/media/platform/s5p-jpeg/jpeg-core.c:31:
../drivers/media/platform/s5p-jpeg/jpeg-core.h:43: warning: "RST" redefined
43 | #define RST 0xd0
../arch/mips/include/asm/mach-rc32434/rb.h:13: note: this is the location of the previous definition
13 | #define RST (1 << 15)
Also update the kernel-doc so that the word "marker" is not
repeated.
Fixes: bb677f3ac434 ("[media] Exynos4 JPEG codec v4l2 driver")
Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
Reported-by: kernel test robot <lkp@...el.com>
Cc: Mauro Carvalho Chehab <mchehab@...nel.org>
Cc: linux-media@...r.kernel.org
Cc: Andrzej Pietrasiewicz <andrzejtp2010@...il.com>
Cc: Jacek Anaszewski <jacek.anaszewski@...il.com>
Cc: Sylwester Nawrocki <s.nawrocki@...sung.com>
Cc: linux-arm-kernel@...ts.infradead.org
---
v2: change all JPEG marker macros to be in their own namespace (as
suggested by Mauro)
drivers/media/platform/s5p-jpeg/jpeg-core.c | 18 +++++------
drivers/media/platform/s5p-jpeg/jpeg-core.h | 28 +++++++++---------
2 files changed, 23 insertions(+), 23 deletions(-)
--- linux-next-20210906.orig/drivers/media/platform/s5p-jpeg/jpeg-core.c
+++ linux-next-20210906/drivers/media/platform/s5p-jpeg/jpeg-core.c
@@ -1140,8 +1140,8 @@ static bool s5p_jpeg_parse_hdr(struct s5
continue;
length = 0;
switch (c) {
- /* SOF0: baseline JPEG */
- case SOF0:
+ /* JPEG_MARKER_SOF0: baseline JPEG */
+ case JPEG_MARKER_SOF0:
if (get_word_be(&jpeg_buffer, &word))
break;
length = (long)word - 2;
@@ -1172,7 +1172,7 @@ static bool s5p_jpeg_parse_hdr(struct s5
notfound = 0;
break;
- case DQT:
+ case JPEG_MARKER_DQT:
if (get_word_be(&jpeg_buffer, &word))
break;
length = (long)word - 2;
@@ -1185,7 +1185,7 @@ static bool s5p_jpeg_parse_hdr(struct s5
skip(&jpeg_buffer, length);
break;
- case DHT:
+ case JPEG_MARKER_DHT:
if (get_word_be(&jpeg_buffer, &word))
break;
length = (long)word - 2;
@@ -1198,15 +1198,15 @@ static bool s5p_jpeg_parse_hdr(struct s5
skip(&jpeg_buffer, length);
break;
- case SOS:
+ case JPEG_MARKER_SOS:
sos = jpeg_buffer.curr - 2; /* 0xffda */
break;
/* skip payload-less markers */
- case RST ... RST + 7:
- case SOI:
- case EOI:
- case TEM:
+ case JPEG_MARKER_RST ... JPEG_MARKER_RST + 7:
+ case JPEG_MARKER_SOI:
+ case JPEG_MARKER_EOI:
+ case JPEG_MARKER_TEM:
break;
/* skip uninteresting payload markers */
--- linux-next-20210906.orig/drivers/media/platform/s5p-jpeg/jpeg-core.h
+++ linux-next-20210906/drivers/media/platform/s5p-jpeg/jpeg-core.h
@@ -37,15 +37,15 @@
#define EXYNOS3250_IRQ_TIMEOUT 0x10000000
/* a selection of JPEG markers */
-#define TEM 0x01
-#define SOF0 0xc0
-#define DHT 0xc4
-#define RST 0xd0
-#define SOI 0xd8
-#define EOI 0xd9
-#define SOS 0xda
-#define DQT 0xdb
-#define DHP 0xde
+#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_DHP 0xde
/* Flags that indicate a format can be used for capture/output */
#define SJPEG_FMT_FLAG_ENC_CAPTURE (1 << 0)
@@ -187,11 +187,11 @@ struct s5p_jpeg_marker {
* @fmt: driver-specific format of this queue
* @w: image width
* @h: image height
- * @sos: SOS marker's position relative to the buffer beginning
- * @dht: DHT markers' positions relative to the buffer beginning
- * @dqt: DQT markers' positions relative to the buffer beginning
- * @sof: SOF0 marker's position relative to the buffer beginning
- * @sof_len: SOF0 marker's payload length (without length field itself)
+ * @sos: JPEG_MARKER_SOS's position relative to the buffer beginning
+ * @dht: JPEG_MARKER_DHT' positions relative to the buffer beginning
+ * @dqt: JPEG_MARKER_DQT' positions relative to the buffer beginning
+ * @sof: JPEG_MARKER_SOF0's position relative to the buffer beginning
+ * @sof_len: JPEG_MARKER_SOF0's payload length (without length field itself)
* @size: image buffer size in bytes
*/
struct s5p_jpeg_q_data {
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