Hi "Mirela,

Thank you for the patch! Perhaps something to improve:

[auto build test WARNING on linuxtv-media/master]
[also build test WARNING on linus/master next-20201215]
[cannot apply to shawnguo/for-next robh/for-next v5.10]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch]

url:    
https://github.com/0day-ci/linux/commits/Mirela-Rabulea-OSS/Add-V4L2-driver-for-i-MX8-JPEG-Encoder-Decoder/20201215-192653
base:   git://linuxtv.org/media_tree.git master
config: x86_64-randconfig-m001-20201215 (attached as .config)
compiler: gcc-9 (Debian 9.3.0-15) 9.3.0

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <[email protected]>

smatch warnings:
drivers/media/platform/imx-jpeg/mxc-jpeg.c:1408 mxc_jpeg_parse() warn: 
inconsistent indenting

vim +1408 drivers/media/platform/imx-jpeg/mxc-jpeg.c

  1321  
  1322  static int mxc_jpeg_parse(struct mxc_jpeg_ctx *ctx,
  1323                            u8 *src_addr, u32 size, bool *dht_needed)
  1324  {
  1325          struct device *dev = ctx->mxc_jpeg->dev;
  1326          struct mxc_jpeg_q_data *q_data_out, *q_data_cap;
  1327          enum v4l2_buf_type cap_type = 
V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
  1328          struct mxc_jpeg_stream stream;
  1329          bool notfound = true;
  1330          bool app14 = false;
  1331          bool src_chg = false;
  1332          u8 app14_transform = 0;
  1333          struct mxc_jpeg_sof sof, *psof = NULL;
  1334          struct mxc_jpeg_sos *psos = NULL;
  1335          int byte;
  1336          u8 *next = NULL;
  1337          enum mxc_jpeg_image_format img_fmt;
  1338          u32 fourcc;
  1339  
  1340          memset(&sof, 0, sizeof(struct mxc_jpeg_sof));
  1341          stream.addr = src_addr;
  1342          stream.end = size;
  1343          stream.loc = 0;
  1344          *dht_needed = true;
  1345  
  1346          /* check stream starts with SOI */
  1347          byte = get_byte(&stream);
  1348          if (byte == -1 || byte != 0xFF)
  1349                  return -EINVAL;
  1350          byte = get_byte(&stream);
  1351          if (byte == -1 || byte != 0xD8)
  1352                  return -EINVAL;
  1353  
  1354          while (notfound) {
  1355                  byte = get_byte(&stream);
  1356                  if (byte == -1)
  1357                          return -EINVAL;
  1358                  if (byte != 0xff)
  1359                          continue;
  1360                  do {
  1361                          byte = get_byte(&stream);
  1362                  } while (byte == 0xff);
  1363                  if (byte == -1)
  1364                          return false;
  1365                  if (byte == 0)
  1366                          continue;
  1367                  switch (byte) {
  1368                  case DHT:
  1369                          /* DHT marker present, no need to inject 
default one */
  1370                          *dht_needed = false;
  1371                          break;
  1372                  case SOF2: /* Progressive DCF frame definition */
  1373                          dev_err(dev,
  1374                                  "Progressive JPEG not supported by 
hardware");
  1375                          return -EINVAL;
  1376                  case SOF1: /* Extended sequential DCF frame definition 
*/
  1377                  case SOF0: /* Baseline sequential DCF frame definition 
*/
  1378                          if (get_sof(dev, &stream, &sof) == -1)
  1379                                  break;
  1380                          next = stream.addr + stream.loc;
  1381                          psof = (struct mxc_jpeg_sof *)next;
  1382                          break;
  1383                  case SOS:
  1384                          next = stream.addr + stream.loc;
  1385                          psos = (struct mxc_jpeg_sos *)next;
  1386                          notfound = false;
  1387                          break;
  1388                  case APP14:
  1389                          app14 = true;
  1390                          /*
  1391                           * Application Data Syntax is:
  1392                           * 2 bytes(APPn:0xFF,0xEE), 2 bytes(Lp), 
Ap1...ApLp-2
  1393                           * The transform flag is in Ap12
  1394                           * stream.loc is now on APPn-0xEE byte
  1395                           */
  1396                          app14_transform = *(stream.addr + stream.loc + 
12 + 1);
  1397                          break;
  1398                  default:
  1399                          notfound = true;
  1400                  }
  1401          }
  1402          q_data_out = mxc_jpeg_get_q_data(ctx,
  1403                                           
V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE);
  1404          if (q_data_out->w == 0 && q_data_out->h == 0) {
  1405                  dev_warn(dev, "Invalid user resolution 0x0");
  1406                  dev_warn(dev, "Keeping resolution from JPEG: %dx%d",
  1407                           sof.width, sof.height);
> 1408                   q_data_out->w = sof.width;
  1409                   q_data_out->h = sof.height;
  1410          } else if (sof.width != q_data_out->w || sof.height != 
q_data_out->h) {
  1411                  dev_err(dev,
  1412                          "Resolution mismatch: %dx%d (JPEG) versus 
%dx%d(user)",
  1413                          sof.width, sof.height, q_data_out->w, 
q_data_out->h);
  1414                  return -EINVAL;
  1415          }
  1416          if (sof.width % 8 != 0 || sof.height % 8 != 0) {
  1417                  dev_err(dev, "JPEG width or height not multiple of 8: 
%dx%d\n",
  1418                          sof.width, sof.height);
  1419                  return -EINVAL;
  1420          }
  1421          if (sof.width > MXC_JPEG_MAX_WIDTH ||
  1422              sof.height > MXC_JPEG_MAX_HEIGHT) {
  1423                  dev_err(dev, "JPEG width or height should be <= 8192: 
%dx%d\n",
  1424                          sof.width, sof.height);
  1425                  return -EINVAL;
  1426          }
  1427          if (sof.width < MXC_JPEG_MIN_WIDTH ||
  1428              sof.height < MXC_JPEG_MIN_HEIGHT) {
  1429                  dev_err(dev, "JPEG width or height should be > 64: 
%dx%d\n",
  1430                          sof.width, sof.height);
  1431                  return -EINVAL;
  1432          }
  1433          if (sof.components_no > MXC_JPEG_MAX_COMPONENTS) {
  1434                  dev_err(dev, "JPEG number of components should be <=%d",
  1435                          MXC_JPEG_MAX_COMPONENTS);
  1436                  return -EINVAL;
  1437          }
  1438          /* check and, if necessary, patch component IDs*/
  1439          if (!mxc_jpeg_valid_comp_id(dev, psof, psos))
  1440                  dev_warn(dev, "JPEG component ids should be 0-3 or 
1-4");
  1441  
  1442          img_fmt = mxc_jpeg_get_image_format(dev, &sof);
  1443          if (img_fmt == MXC_JPEG_INVALID)
  1444                  return -EINVAL;
  1445  
  1446          /*
  1447           * If the transform flag from APP14 marker is 0, images that are
  1448           * encoded with 3 components have RGB colorspace, see 
Recommendation
  1449           * ITU-T T.872 chapter 6.5.3 APP14 marker segment for colour 
encoding
  1450           */
  1451          if (img_fmt == MXC_JPEG_YUV444 && app14 && app14_transform == 0)
  1452                  img_fmt = MXC_JPEG_RGB;
  1453  
  1454          if (mxc_jpeg_imgfmt_to_fourcc(img_fmt, &fourcc)) {
  1455                  dev_err(dev, "Fourcc not found for %d", img_fmt);
  1456                  return -EINVAL;
  1457          }
  1458  
  1459          /*
  1460           * set-up the capture queue with the pixelformat and resolution
  1461           * detected from the jpeg output stream
  1462           */
  1463          q_data_cap = mxc_jpeg_get_q_data(ctx, cap_type);
  1464          if (q_data_cap->w != sof.width || q_data_cap->h != sof.height)
  1465                  src_chg = true;
  1466          q_data_cap->w = sof.width;
  1467          q_data_cap->h = sof.height;
  1468          q_data_cap->fmt = mxc_jpeg_find_format(ctx, fourcc);
  1469          q_data_cap->w_adjusted = q_data_cap->w;
  1470          q_data_cap->h_adjusted = q_data_cap->h;
  1471          /*
  1472           * align up the resolution for CAST IP,
  1473           * but leave the buffer resolution unchanged
  1474           */
  1475          v4l_bound_align_image(&q_data_cap->w_adjusted,
  1476                                q_data_cap->w_adjusted,  /* adjust up */
  1477                                MXC_JPEG_MAX_WIDTH,
  1478                                q_data_cap->fmt->h_align,
  1479                                &q_data_cap->h_adjusted,
  1480                                q_data_cap->h_adjusted, /* adjust up */
  1481                                MXC_JPEG_MAX_HEIGHT,
  1482                                q_data_cap->fmt->v_align,
  1483                                0);
  1484          dev_dbg(dev, "Detected jpeg res=(%dx%d)->(%dx%d), 
pixfmt=%c%c%c%c\n",
  1485                  q_data_cap->w, q_data_cap->h,
  1486                  q_data_cap->w_adjusted, q_data_cap->h_adjusted,
  1487                  (fourcc & 0xff),
  1488                  (fourcc >>  8) & 0xff,
  1489                  (fourcc >> 16) & 0xff,
  1490                  (fourcc >> 24) & 0xff);
  1491  
  1492          /* setup bytesperline/sizeimage for capture queue */
  1493          mxc_jpeg_bytesperline(q_data_cap, sof.precision);
  1494          mxc_jpeg_sizeimage(q_data_cap);
  1495  
  1496          /*
  1497           * if the CAPTURE format was updated with new values, 
regardless of
  1498           * whether they match the values set by the client or not, 
signal
  1499           * a source change event
  1500           */
  1501          if (src_chg)
  1502                  notify_src_chg(ctx);
  1503  
  1504          return 0;
  1505  }
  1506  

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/[email protected]

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