Re: [PATCH v2] media: atomisp: remove returns from void functions
From: kernel test robot
Date: Sun May 10 2026 - 11:44:45 EST
Hi Everton,
kernel test robot noticed the following build warnings:
[auto build test WARNING on staging/staging-testing]
[also build test WARNING on staging/staging-next staging/staging-linus linus/master v7.1-rc2 next-20260508]
[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#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Everton-Colombo/media-atomisp-remove-returns-from-void-functions/20260510-154432
base: staging/staging-testing
patch link: https://lore.kernel.org/r/20260506173028.24417-1-e.rcolombo2%40gmail.com
patch subject: [PATCH v2] media: atomisp: remove returns from void functions
config: i386-allyesconfig (https://download.01.org/0day-ci/archive/20260510/202605102303.EGwA2HDq-lkp@xxxxxxxxx/config)
compiler: gcc-14 (Debian 14.2.0-19) 14.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260510/202605102303.EGwA2HDq-lkp@xxxxxxxxx/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202605102303.EGwA2HDq-lkp@xxxxxxxxx/
All warnings (new ones prefixed by >>):
drivers/staging/media/atomisp/pci/runtime/debug/src/ia_css_debug.c: In function 'ia_css_debug_binary_print':
drivers/staging/media/atomisp/pci/runtime/debug/src/ia_css_debug.c:853:1: error: invalid storage class for function 'findf_dmem_params'
853 | findf_dmem_params(struct ia_css_stream *stream, short idx)
| ^~~~~~~~~~~~~~~~~
drivers/staging/media/atomisp/pci/runtime/debug/src/ia_css_debug.c:1049:28: error: invalid storage class for function 'dtrace_dot'
1049 | static void __printf(1, 2) dtrace_dot(const char *fmt, ...)
| ^~~~~~~~~~
drivers/staging/media/atomisp/pci/runtime/debug/src/ia_css_debug.c:1063:1: error: invalid storage class for function 'ia_css_debug_pipe_graph_dump_frame'
1063 | ia_css_debug_pipe_graph_dump_frame(
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/staging/media/atomisp/pci/runtime/debug/src/ia_css_debug.c:1875:1: error: expected declaration or statement at end of input
1875 | }
| ^
drivers/staging/media/atomisp/pci/runtime/debug/src/ia_css_debug.c: At top level:
>> drivers/staging/media/atomisp/pci/runtime/debug/src/ia_css_debug.c:1862:6: warning: 'ia_css_debug_pc_dump' defined but not used [-Wunused-function]
1862 | void ia_css_debug_pc_dump(sp_ID_t id, unsigned int num_of_dumps)
| ^~~~~~~~~~~~~~~~~~~~
>> drivers/staging/media/atomisp/pci/runtime/debug/src/ia_css_debug.c:1848:6: warning: 'ia_css_debug_dump_trace' defined but not used [-Wunused-function]
1848 | void ia_css_debug_dump_trace(void)
| ^~~~~~~~~~~~~~~~~~~~~~~
>> drivers/staging/media/atomisp/pci/runtime/debug/src/ia_css_debug.c:1575:1: warning: 'ia_css_debug_dump_stream_config' defined but not used [-Wunused-function]
1575 | ia_css_debug_dump_stream_config(
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/staging/media/atomisp/pci/runtime/debug/src/ia_css_debug.c:1475:1: warning: 'ia_css_debug_dump_pipe_config' defined but not used [-Wunused-function]
1475 | ia_css_debug_dump_pipe_config(
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/staging/media/atomisp/pci/runtime/debug/src/ia_css_debug.c:1447:1: warning: 'ia_css_debug_dump_pipe_extra_config' defined but not used [-Wunused-function]
1447 | ia_css_debug_dump_pipe_extra_config(
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/staging/media/atomisp/pci/runtime/debug/src/ia_css_debug.c:1399:1: warning: 'ia_css_debug_pipe_graph_dump_stream_config' defined but not used [-Wunused-function]
1399 | ia_css_debug_pipe_graph_dump_stream_config(
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/staging/media/atomisp/pci/runtime/debug/src/ia_css_debug.c:1368:1: warning: 'ia_css_debug_pipe_graph_dump_sp_raw_copy' defined but not used [-Wunused-function]
1368 | ia_css_debug_pipe_graph_dump_sp_raw_copy(
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/staging/media/atomisp/pci/runtime/debug/src/ia_css_debug.c:1157:1: warning: 'ia_css_debug_pipe_graph_dump_stage' defined but not used [-Wunused-function]
1157 | ia_css_debug_pipe_graph_dump_stage(
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/staging/media/atomisp/pci/runtime/debug/src/ia_css_debug.c:1114:6: warning: 'ia_css_debug_pipe_graph_dump_epilogue' defined but not used [-Wunused-function]
1114 | void ia_css_debug_pipe_graph_dump_epilogue(void)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/staging/media/atomisp/pci/runtime/debug/src/ia_css_debug.c:1039:1: warning: 'ia_css_debug_mode_enable_dma_channel' defined but not used [-Wunused-function]
1039 | ia_css_debug_mode_enable_dma_channel(int dma_id,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/staging/media/atomisp/pci/runtime/debug/src/ia_css_debug.c:1024:1: warning: 'ia_css_debug_mode_disable_dma_channel' defined but not used [-Wunused-function]
1024 | ia_css_debug_mode_disable_dma_channel(int dma_id,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/staging/media/atomisp/pci/runtime/debug/src/ia_css_debug.c:1011:6: warning: 'ia_css_debug_mode_init' defined but not used [-Wunused-function]
1011 | bool ia_css_debug_mode_init(void)
| ^~~~~~~~~~~~~~~~~~~~~~
>> drivers/staging/media/atomisp/pci/runtime/debug/src/ia_css_debug.c:976:6: warning: 'ia_css_debug_dump_isp_binary' defined but not used [-Wunused-function]
976 | void ia_css_debug_dump_isp_binary(void)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/staging/media/atomisp/pci/runtime/debug/src/ia_css_debug.c:946:6: warning: 'sh_css_dump_sp_raw_copy_linecount' defined but not used [-Wunused-function]
946 | void sh_css_dump_sp_raw_copy_linecount(bool reduced)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/staging/media/atomisp/pci/runtime/debug/src/ia_css_debug.c:877:6: warning: 'ia_css_debug_dump_isp_params' defined but not used [-Wunused-function]
877 | void ia_css_debug_dump_isp_params(struct ia_css_stream *stream,
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/staging/media/atomisp/pci/runtime/debug/src/ia_css_debug.c:839:6: warning: 'ia_css_debug_wake_up_sp' defined but not used [-Wunused-function]
839 | void ia_css_debug_wake_up_sp(void)
| ^~~~~~~~~~~~~~~~~~~~~~~
>> drivers/staging/media/atomisp/pci/runtime/debug/src/ia_css_debug.c:824:6: warning: 'ia_css_debug_enable_sp_sleep_mode' defined but not used [-Wunused-function]
824 | void ia_css_debug_enable_sp_sleep_mode(enum ia_css_sp_sleep_mode mode)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/staging/media/atomisp/pci/runtime/debug/src/ia_css_debug.c:807:6: warning: 'ia_css_debug_dump_sp_sw_debug_info' defined but not used [-Wunused-function]
807 | void ia_css_debug_dump_sp_sw_debug_info(void)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/staging/media/atomisp/pci/runtime/debug/src/ia_css_debug.c:441:6: warning: 'ia_css_debug_frame_print' defined but not used [-Wunused-function]
441 | void ia_css_debug_frame_print(const struct ia_css_frame *frame,
| ^~~~~~~~~~~~~~~~~~~~~~~~
--
drivers/staging/media/atomisp/pci/runtime/inputfifo/src/inputfifo.c: In function 'inputfifo_send_data_b':
drivers/staging/media/atomisp/pci/runtime/inputfifo/src/inputfifo.c:110:13: error: invalid storage class for function 'inputfifo_send_data'
110 | static void inputfifo_send_data(
| ^~~~~~~~~~~~~~~~~~~
drivers/staging/media/atomisp/pci/runtime/inputfifo/src/inputfifo.c:122:13: error: invalid storage class for function 'inputfifo_send_sol'
122 | static void inputfifo_send_sol(void)
| ^~~~~~~~~~~~~~~~~~
drivers/staging/media/atomisp/pci/runtime/inputfifo/src/inputfifo.c:131:13: error: invalid storage class for function 'inputfifo_send_eol'
131 | static void inputfifo_send_eol(void)
| ^~~~~~~~~~~~~~~~~~
drivers/staging/media/atomisp/pci/runtime/inputfifo/src/inputfifo.c:139:13: error: invalid storage class for function 'inputfifo_send_sof'
139 | static void inputfifo_send_sof(void)
| ^~~~~~~~~~~~~~~~~~
drivers/staging/media/atomisp/pci/runtime/inputfifo/src/inputfifo.c:148:13: error: invalid storage class for function 'inputfifo_send_eof'
148 | static void inputfifo_send_eof(void)
| ^~~~~~~~~~~~~~~~~~
drivers/staging/media/atomisp/pci/runtime/inputfifo/src/inputfifo.c:156:13: error: invalid storage class for function 'inputfifo_send_ch_id_and_fmt_type'
156 | static void inputfifo_send_ch_id_and_fmt_type(
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/staging/media/atomisp/pci/runtime/inputfifo/src/inputfifo.c:173:13: error: invalid storage class for function 'inputfifo_send_empty_token'
173 | static void inputfifo_send_empty_token(void)
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/staging/media/atomisp/pci/runtime/inputfifo/src/inputfifo.c:181:13: error: invalid storage class for function 'inputfifo_start_frame'
181 | static void inputfifo_start_frame(
| ^~~~~~~~~~~~~~~~~~~~~
drivers/staging/media/atomisp/pci/runtime/inputfifo/src/inputfifo.c:190:13: error: invalid storage class for function 'inputfifo_end_frame'
190 | static void inputfifo_end_frame(
| ^~~~~~~~~~~~~~~~~~~
drivers/staging/media/atomisp/pci/runtime/inputfifo/src/inputfifo.c:200:13: error: invalid storage class for function 'inputfifo_send_line2'
200 | static void inputfifo_send_line2(
| ^~~~~~~~~~~~~~~~~~~~
drivers/staging/media/atomisp/pci/runtime/inputfifo/src/inputfifo.c:290:1: error: invalid storage class for function 'inputfifo_send_line'
290 | inputfifo_send_line(const unsigned short *data,
| ^~~~~~~~~~~~~~~~~~~
drivers/staging/media/atomisp/pci/runtime/inputfifo/src/inputfifo.c:333:13: error: invalid storage class for function 'inputfifo_send_frame'
333 | static void inputfifo_send_frame(
| ^~~~~~~~~~~~~~~~~~~~
drivers/staging/media/atomisp/pci/runtime/inputfifo/src/inputfifo.c:368:38: error: invalid storage class for function 'inputfifo_determine_type'
368 | static enum inputfifo_mipi_data_type inputfifo_determine_type(
| ^~~~~~~~~~~~~~~~~~~~~~~~
drivers/staging/media/atomisp/pci/runtime/inputfifo/src/inputfifo.c:390:35: error: invalid storage class for function 'inputfifo_get_inst'
390 | static struct inputfifo_instance *inputfifo_get_inst(
| ^~~~~~~~~~~~~~~~~~
drivers/staging/media/atomisp/pci/runtime/inputfifo/src/inputfifo.c:503:1: error: expected declaration or statement at end of input
503 | }
| ^
drivers/staging/media/atomisp/pci/runtime/inputfifo/src/inputfifo.c: At top level:
>> drivers/staging/media/atomisp/pci/runtime/inputfifo/src/inputfifo.c:488:6: warning: 'ia_css_inputfifo_end_frame' defined but not used [-Wunused-function]
488 | void ia_css_inputfifo_end_frame(
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/staging/media/atomisp/pci/runtime/inputfifo/src/inputfifo.c:467:6: warning: 'ia_css_inputfifo_send_embedded_line' defined but not used [-Wunused-function]
467 | void ia_css_inputfifo_send_embedded_line(
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/staging/media/atomisp/pci/runtime/inputfifo/src/inputfifo.c:443:6: warning: 'ia_css_inputfifo_send_line' defined but not used [-Wunused-function]
443 | void ia_css_inputfifo_send_line(
| ^~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/staging/media/atomisp/pci/runtime/inputfifo/src/inputfifo.c:421:6: warning: 'ia_css_inputfifo_start_frame' defined but not used [-Wunused-function]
421 | void ia_css_inputfifo_start_frame(
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
>> drivers/staging/media/atomisp/pci/runtime/inputfifo/src/inputfifo.c:396:6: warning: 'ia_css_inputfifo_send_input_frame' defined but not used [-Wunused-function]
396 | void ia_css_inputfifo_send_input_frame(
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
--
drivers/staging/media/atomisp/pci/runtime/isys/src/rx.c: In function 'ia_css_isys_rx_configure':
drivers/staging/media/atomisp/pci/runtime/isys/src/rx.c:646:1: error: expected declaration or statement at end of input
646 | }
| ^
drivers/staging/media/atomisp/pci/runtime/isys/src/rx.c: At top level:
>> drivers/staging/media/atomisp/pci/runtime/isys/src/rx.c:637:6: warning: 'ia_css_isys_rx_disable' defined but not used [-Wunused-function]
637 | void ia_css_isys_rx_disable(void)
| ^~~~~~~~~~~~~~~~~~~~~~
vim +/ia_css_debug_pc_dump +1862 drivers/staging/media/atomisp/pci/runtime/debug/src/ia_css_debug.c
ad85094b293e40e drivers/staging/media/atomisp/pci/atomisp2/css2400/runtime/debug/src/ia_css_debug.c Mauro Carvalho Chehab 2020-04-19 1847
ad85094b293e40e drivers/staging/media/atomisp/pci/atomisp2/css2400/runtime/debug/src/ia_css_debug.c Mauro Carvalho Chehab 2020-04-19 @1848 void ia_css_debug_dump_trace(void)
ad85094b293e40e drivers/staging/media/atomisp/pci/atomisp2/css2400/runtime/debug/src/ia_css_debug.c Mauro Carvalho Chehab 2020-04-19 1849 {
ad85094b293e40e drivers/staging/media/atomisp/pci/atomisp2/css2400/runtime/debug/src/ia_css_debug.c Mauro Carvalho Chehab 2020-04-19 1850 #if TRACE_ENABLE_SP0
ad85094b293e40e drivers/staging/media/atomisp/pci/atomisp2/css2400/runtime/debug/src/ia_css_debug.c Mauro Carvalho Chehab 2020-04-19 1851 debug_dump_one_trace(TRACE_SP0_ID);
ad85094b293e40e drivers/staging/media/atomisp/pci/atomisp2/css2400/runtime/debug/src/ia_css_debug.c Mauro Carvalho Chehab 2020-04-19 1852 #endif
ad85094b293e40e drivers/staging/media/atomisp/pci/atomisp2/css2400/runtime/debug/src/ia_css_debug.c Mauro Carvalho Chehab 2020-04-19 1853 #if TRACE_ENABLE_SP1
ad85094b293e40e drivers/staging/media/atomisp/pci/atomisp2/css2400/runtime/debug/src/ia_css_debug.c Mauro Carvalho Chehab 2020-04-19 1854 debug_dump_one_trace(TRACE_SP1_ID);
ad85094b293e40e drivers/staging/media/atomisp/pci/atomisp2/css2400/runtime/debug/src/ia_css_debug.c Mauro Carvalho Chehab 2020-04-19 1855 #endif
ad85094b293e40e drivers/staging/media/atomisp/pci/atomisp2/css2400/runtime/debug/src/ia_css_debug.c Mauro Carvalho Chehab 2020-04-19 1856 #if TRACE_ENABLE_ISP
ad85094b293e40e drivers/staging/media/atomisp/pci/atomisp2/css2400/runtime/debug/src/ia_css_debug.c Mauro Carvalho Chehab 2020-04-19 1857 debug_dump_one_trace(TRACE_ISP_ID);
ad85094b293e40e drivers/staging/media/atomisp/pci/atomisp2/css2400/runtime/debug/src/ia_css_debug.c Mauro Carvalho Chehab 2020-04-19 1858 #endif
ad85094b293e40e drivers/staging/media/atomisp/pci/atomisp2/css2400/runtime/debug/src/ia_css_debug.c Mauro Carvalho Chehab 2020-04-19 1859 }
ad85094b293e40e drivers/staging/media/atomisp/pci/atomisp2/css2400/runtime/debug/src/ia_css_debug.c Mauro Carvalho Chehab 2020-04-19 1860
3c0538fbad9f1d0 drivers/staging/media/atomisp/pci/runtime/debug/src/ia_css_debug.c Mauro Carvalho Chehab 2020-04-30 1861 /* ISP2401 */
ad85094b293e40e drivers/staging/media/atomisp/pci/atomisp2/css2400/runtime/debug/src/ia_css_debug.c Mauro Carvalho Chehab 2020-04-19 @1862 void ia_css_debug_pc_dump(sp_ID_t id, unsigned int num_of_dumps)
ad85094b293e40e drivers/staging/media/atomisp/pci/atomisp2/css2400/runtime/debug/src/ia_css_debug.c Mauro Carvalho Chehab 2020-04-19 1863 {
ad85094b293e40e drivers/staging/media/atomisp/pci/atomisp2/css2400/runtime/debug/src/ia_css_debug.c Mauro Carvalho Chehab 2020-04-19 1864 unsigned int pc;
ad85094b293e40e drivers/staging/media/atomisp/pci/atomisp2/css2400/runtime/debug/src/ia_css_debug.c Mauro Carvalho Chehab 2020-04-19 1865 unsigned int i;
ad85094b293e40e drivers/staging/media/atomisp/pci/atomisp2/css2400/runtime/debug/src/ia_css_debug.c Mauro Carvalho Chehab 2020-04-19 1866 hrt_data sc = sp_ctrl_load(id, SP_SC_REG);
bdfe0beb95eebc8 drivers/staging/media/atomisp/pci/atomisp2/css2400/runtime/debug/src/ia_css_debug.c Mauro Carvalho Chehab 2020-04-19 1867
ad85094b293e40e drivers/staging/media/atomisp/pci/atomisp2/css2400/runtime/debug/src/ia_css_debug.c Mauro Carvalho Chehab 2020-04-19 1868 ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE, "SP%-1d Status reg: 0x%X\n", id, sc);
ad85094b293e40e drivers/staging/media/atomisp/pci/atomisp2/css2400/runtime/debug/src/ia_css_debug.c Mauro Carvalho Chehab 2020-04-19 1869 sc = sp_ctrl_load(id, SP_CTRL_SINK_REG);
ad85094b293e40e drivers/staging/media/atomisp/pci/atomisp2/css2400/runtime/debug/src/ia_css_debug.c Mauro Carvalho Chehab 2020-04-19 1870 ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE, "SP%-1d Stall reg: 0x%X\n", id, sc);
ad85094b293e40e drivers/staging/media/atomisp/pci/atomisp2/css2400/runtime/debug/src/ia_css_debug.c Mauro Carvalho Chehab 2020-04-19 1871 for (i = 0; i < num_of_dumps; i++) {
ad85094b293e40e drivers/staging/media/atomisp/pci/atomisp2/css2400/runtime/debug/src/ia_css_debug.c Mauro Carvalho Chehab 2020-04-19 1872 pc = sp_ctrl_load(id, SP_PC_REG);
ad85094b293e40e drivers/staging/media/atomisp/pci/atomisp2/css2400/runtime/debug/src/ia_css_debug.c Mauro Carvalho Chehab 2020-04-19 1873 ia_css_debug_dtrace(IA_CSS_DEBUG_TRACE, "SP%-1d PC: 0x%X\n", id, pc);
ad85094b293e40e drivers/staging/media/atomisp/pci/atomisp2/css2400/runtime/debug/src/ia_css_debug.c Mauro Carvalho Chehab 2020-04-19 1874 }
ad85094b293e40e drivers/staging/media/atomisp/pci/atomisp2/css2400/runtime/debug/src/ia_css_debug.c Mauro Carvalho Chehab 2020-04-19 @1875 }
--
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