Re: Subject: [PATCH] staging: media: meson: vdec: declare u32 as static const
Hi Mitali,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on staging/staging-testing]
url:
https://github.com/0day-ci/linux/commits/Mitali-Borkar/Subject-PATCH-staging-media-meson-vdec-declare-u32-as-static-const/20210412-222025
base: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git
f2f560e1bdc055a6a306e6b7823ba589794e6564
config: mips-randconfig-r013-20210412 (attached as .config)
compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project
9829f5e6b1bca9b61efc629770d28bb9014dec45)
reproduce (this is a W=1 build):
wget
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O
~/bin/make.cross
chmod +x ~/bin/make.cross
# install mips cross compiling tool for clang build
# apt-get install binutils-mips-linux-gnu
#
https://github.com/0day-ci/linux/commit/c9873622761b42d977b48804bb0b4b9a7fbcd6b3
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review
Mitali-Borkar/Subject-PATCH-staging-media-meson-vdec-declare-u32-as-static-const/20210412-222025
git checkout c9873622761b42d977b48804bb0b4b9a7fbcd6b3
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=mips
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot
All errors (new ones prefixed by >>):
>> drivers/staging/media/meson/vdec/codec_h264.c:290:28: error: brackets are
>> not allowed here; to declare an array, place the brackets after the
>> identifier
static const u32[] canvas3 = { ANCO_CANVAS_ADDR, 0 };
~~^
[]
>> drivers/staging/media/meson/vdec/codec_h264.c:290:33: error: use of
>> undeclared identifier 'ANCO_CANVAS_ADDR'
static const u32[] canvas3 = { ANCO_CANVAS_ADDR, 0 };
^
drivers/staging/media/meson/vdec/codec_h264.c:291:28: error: brackets are
not allowed here; to declare an array, place the brackets after the identifier
static const u32[] canvas4 = { 24, 0 };
~~^
[]
>> drivers/staging/media/meson/vdec/codec_h264.c:293:28: error: passing 'const
>> u32 []' to parameter of type 'u32 *' (aka 'unsigned int *') discards
>> qualifiers [-Werror,-Wincompatible-pointer-types-discards-qualifiers]
amvdec_set_canvases(sess, canvas3, canvas4);
^~~
drivers/staging/media/meson/vdec/vdec_helpers.h:20:8: note: passing argument
to parameter 'reg_base' here
u32 reg_base[], u32 reg_num[]);
^
drivers/staging/media/meson/vdec/codec_h264.c:293:37: error: passing 'const
u32 [2]' to parameter of type 'u32 *' (aka 'unsigned int *') discards
qualifiers [-Werror,-Wincompatible-pointer-types-discards-qualifiers]
amvdec_set_canvases(sess, canvas3, canvas4);
^~~
drivers/staging/media/meson/vdec/vdec_helpers.h:20:24: note: passing
argument to parameter 'reg_num' here
u32 reg_base[], u32 reg_num[]);
^
5 errors generated.
vim +290 drivers/staging/media/meson/vdec/codec_h264.c
284
285 static void codec_h264_resume(struct amvdec_session *sess)
286 {
287 struct amvdec_core *core = sess->core;
288 struct codec_h264 *h264 = sess->priv;
289 u32 mb_width, mb_height, mb_total;
> 290 static const u32[] canvas3 = { ANCO_CANVAS_ADDR, 0 };
291 static const u32[] canvas4 = { 24, 0 };
292
> 293 amvdec_set_canvases(sess, canvas3, canvas4);
294
295 dev_dbg(core->dev, "max_refs = %u; actual_dpb_size = %u\n",
296 h264->max_refs, sess->num_dst_bufs);
297
298 /* Align to a multiple of 4 macroblocks */
299 mb_width = ALIGN(h264->mb_width, 4);
300 mb_height = ALIGN(h264->mb_height, 4);
301 mb_total = mb_width * mb_height;
302
303 h264->ref_size = mb_total * MB_MV_SIZE * h264->max_refs;
304 h264->ref_vaddr = dma_alloc_coherent(core->dev, h264->ref_size,
305 >ref_paddr,
GFP_KERNEL);
306 if (!h264->ref_vaddr) {
307 amvdec_abort(sess);
308 return;
309 }
310
311 /* Address to store the references' MVs */
312 amvdec_write_dos(core, AV_SCRATCH_1, h264->ref_paddr);
313 /* End of ref MV */
314 amvdec_write_dos(core, AV_SCRATCH_4, h264->ref_p
Re: Subject: [PATCH] staging: media: meson: vdec: declare u32 as static const
Hi Mitali,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on staging/staging-testing]
url:
https://github.com/0day-ci/linux/commits/Mitali-Borkar/Subject-PATCH-staging-media-meson-vdec-declare-u32-as-static-const/20210412-222025
base: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git
f2f560e1bdc055a6a306e6b7823ba589794e6564
config: ia64-allmodconfig (attached as .config)
compiler: ia64-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
wget
https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O
~/bin/make.cross
chmod +x ~/bin/make.cross
#
https://github.com/0day-ci/linux/commit/c9873622761b42d977b48804bb0b4b9a7fbcd6b3
git remote add linux-review https://github.com/0day-ci/linux
git fetch --no-tags linux-review
Mitali-Borkar/Subject-PATCH-staging-media-meson-vdec-declare-u32-as-static-const/20210412-222025
git checkout c9873622761b42d977b48804bb0b4b9a7fbcd6b3
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross
ARCH=ia64
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot
All error/warnings (new ones prefixed by >>):
drivers/staging/media/meson/vdec/codec_h264.c: In function
'codec_h264_resume':
>> drivers/staging/media/meson/vdec/codec_h264.c:290:18: error: expected
>> identifier or '(' before '[' token
290 | static const u32[] canvas3 = { ANCO_CANVAS_ADDR, 0 };
| ^
drivers/staging/media/meson/vdec/codec_h264.c:291:18: error: expected
identifier or '(' before '[' token
291 | static const u32[] canvas4 = { 24, 0 };
| ^
>> drivers/staging/media/meson/vdec/codec_h264.c:291:2: warning: ISO C90
>> forbids mixed declarations and code [-Wdeclaration-after-statement]
291 | static const u32[] canvas4 = { 24, 0 };
| ^~
>> drivers/staging/media/meson/vdec/codec_h264.c:293:28: error: 'canvas3'
>> undeclared (first use in this function)
293 | amvdec_set_canvases(sess, canvas3, canvas4);
|^~~
drivers/staging/media/meson/vdec/codec_h264.c:293:28: note: each undeclared
identifier is reported only once for each function it appears in
>> drivers/staging/media/meson/vdec/codec_h264.c:293:37: error: 'canvas4'
>> undeclared (first use in this function)
293 | amvdec_set_canvases(sess, canvas3, canvas4);
| ^~~
vim +290 drivers/staging/media/meson/vdec/codec_h264.c
284
285 static void codec_h264_resume(struct amvdec_session *sess)
286 {
287 struct amvdec_core *core = sess->core;
288 struct codec_h264 *h264 = sess->priv;
289 u32 mb_width, mb_height, mb_total;
> 290 static const u32[] canvas3 = { ANCO_CANVAS_ADDR, 0 };
> 291 static const u32[] canvas4 = { 24, 0 };
292
> 293 amvdec_set_canvases(sess, canvas3, canvas4);
294
295 dev_dbg(core->dev, "max_refs = %u; actual_dpb_size = %u\n",
296 h264->max_refs, sess->num_dst_bufs);
297
298 /* Align to a multiple of 4 macroblocks */
299 mb_width = ALIGN(h264->mb_width, 4);
300 mb_height = ALIGN(h264->mb_height, 4);
301 mb_total = mb_width * mb_height;
302
303 h264->ref_size = mb_total * MB_MV_SIZE * h264->max_refs;
304 h264->ref_vaddr = dma_alloc_coherent(core->dev, h264->ref_size,
305 >ref_paddr,
GFP_KERNEL);
306 if (!h264->ref_vaddr) {
307 amvdec_abort(sess);
308 return;
309 }
310
311 /* Address to store the references' MVs */
312 amvdec_write_dos(core, AV_SCRATCH_1, h264->ref_paddr);
313 /* End of ref MV */
314 amvdec_write_dos(core, AV_SCRATCH_4, h264->ref_paddr +
h264->ref_size);
315
316 amvdec_write_dos(core, AV_SCRATCH_0, (h264->max_refs << 24) |
317 (sess->num_dst_bufs << 16)
|
318 ((h264->max_refs - 1) <<
8));
319 }
320
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org
.config.gz
Description: application/gzip
Subject: [PATCH] staging: media: meson: vdec: declare u32 as static const
Declared 32 bit unsigned int as static constant inside a function and
replaced u32[] {x,y} as canvas3, canvas4 in codec_h264.c
This indicates the value of canvas indexes will remain constant throughout
execution.
Signed-off-by: Mitali Borkar
---
drivers/staging/media/meson/vdec/codec_h264.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/staging/media/meson/vdec/codec_h264.c
b/drivers/staging/media/meson/vdec/codec_h264.c
index c61128fc4bb9..ea86e9e1c447 100644
--- a/drivers/staging/media/meson/vdec/codec_h264.c
+++ b/drivers/staging/media/meson/vdec/codec_h264.c
@@ -287,10 +287,10 @@ static void codec_h264_resume(struct amvdec_session *sess)
struct amvdec_core *core = sess->core;
struct codec_h264 *h264 = sess->priv;
u32 mb_width, mb_height, mb_total;
+ static const u32[] canvas3 = { ANCO_CANVAS_ADDR, 0 };
+ static const u32[] canvas4 = { 24, 0 };
- amvdec_set_canvases(sess,
- (u32[]){ ANC0_CANVAS_ADDR, 0 },
- (u32[]){ 24, 0 });
+ amvdec_set_canvases(sess, canvas3, canvas4);
dev_dbg(core->dev, "max_refs = %u; actual_dpb_size = %u\n",
h264->max_refs, sess->num_dst_bufs);
--
2.30.2
