Re: Subject: [PATCH] staging: media: meson: vdec: declare u32 as static const

From: kernel test robot
Date: Mon Apr 12 2021 - 12:50:45 EST


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 <lkp@xxxxxxxxx>

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 &h264->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
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