[nomadik:ux500-golden-v5.8-rc1 10/13] drivers/gpu/drm/panel/panel-samsung-s6e63m0-dsi.c:62:20: warning: format '%x' expects argument of type 'unsigned int', but argument 5 has type 'size_t' {aka 'long unsigned int'}
kernel test robot
lkp at intel.com
Mon Jun 29 04:13:16 EDT 2020
tree: https://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-nomadik.git ux500-golden-v5.8-rc1
head: cc15a24c42e401236980e6e3bece32ec04a78c81
commit: 08e3c1769cecd81f1d78640bc4f627e96d276918 [10/13] drm/panel: Add DSI transport so s6e63m0
config: alpha-allyesconfig (attached as .config)
compiler: alpha-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
git checkout 08e3c1769cecd81f1d78640bc4f627e96d276918
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=alpha
If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp at intel.com>
All warnings (new ones prefixed by >>):
In file included from drivers/gpu/drm/panel/panel-samsung-s6e63m0-dsi.c:12:
drivers/gpu/drm/panel/panel-samsung-s6e63m0-dsi.c: In function 's6e63m0_dsi_dcs_write':
>> drivers/gpu/drm/panel/panel-samsung-s6e63m0-dsi.c:62:20: warning: format '%x' expects argument of type 'unsigned int', but argument 5 has type 'size_t' {aka 'long unsigned int'} [-Wformat=]
62 | DRM_DEV_INFO(dev, "sent command %02x %02x bytes\n",
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
63 | cmd, len - 1);
| ~~~~~~~
| |
| size_t {aka long unsigned int}
include/drm/drm_print.h:366:33: note: in definition of macro 'DRM_DEV_INFO'
366 | drm_dev_printk(dev, KERN_INFO, fmt, ##__VA_ARGS__)
| ^~~
drivers/gpu/drm/panel/panel-samsung-s6e63m0-dsi.c:62:42: note: format string is defined here
62 | DRM_DEV_INFO(dev, "sent command %02x %02x bytes\n",
| ~~~^
| |
| unsigned int
| %02lx
vim +62 drivers/gpu/drm/panel/panel-samsung-s6e63m0-dsi.c
10
11 #include <drm/drm_mipi_dsi.h>
> 12 #include <drm/drm_print.h>
13
14 #include "panel-samsung-s6e63m0.h"
15
16 #define DSI_MAX_CHUNK 15
17
18 static int s6e63m0_dsi_dcs_write(struct device *dev, const u8 *data, size_t len)
19 {
20 struct mipi_dsi_device *dsi = to_mipi_dsi_device(dev);
21 const u8 *seqp = data;
22 u8 cmd;
23 int cmdwritten = 0;
24 int chunk;
25 int ret;
26
27 DRM_DEV_INFO(dev, "DSI writing dcs seq: %*ph\n", (int)len, data);
28
29 /* Pick out the DCS command */
30 cmd = *seqp;
31 seqp++;
32 cmdwritten++;
33 chunk = len - 1;
34
35 /* Send max 15 bytes at a time */
36 if (chunk > DSI_MAX_CHUNK)
37 chunk = DSI_MAX_CHUNK;
38 ret = mipi_dsi_dcs_write(dsi, cmd, seqp, chunk);
39 if (ret < 0) {
40 DRM_DEV_ERROR(dev,
41 "error sending DCS command seq cmd %02x\n",
42 cmd);
43 return ret;
44 }
45 cmdwritten += chunk;
46 seqp += chunk;
47
48 while (cmdwritten < len) {
49 chunk = len - cmdwritten;
50 if (chunk > DSI_MAX_CHUNK)
51 chunk = DSI_MAX_CHUNK;
52 ret = mipi_dsi_generic_write(dsi, seqp, chunk);
53 if (ret < 0) {
54 DRM_DEV_ERROR(dev,
55 "error sending generic write seq %02x\n",
56 cmd);
57 return ret;
58 }
59 cmdwritten += chunk;
60 seqp += chunk;
61 }
> 62 DRM_DEV_INFO(dev, "sent command %02x %02x bytes\n",
63 cmd, len - 1);
64
65 usleep_range(8000, 9000);
66
67 return 0;
68 }
69
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org
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