[kbuild-all] [android-common:android-4.19-r 1/1] drivers/dma/ti/omap-dma.c:1626:34: warning: unused variable 'omap_dma_match'

Wednesday, 20 January 2021

tree:   https://android.googlesource.com/kernel/common android-4.19-r
head:   f0719dcb3a6ebfd657bff0df566e70f6fd18e3c9
commit: f0719dcb3a6ebfd657bff0df566e70f6fd18e3c9 [1/1] BACKPORT: ARM: 8900/1:
UNWINDER_FRAME_POINTER implementation for Clang
config: arm-randconfig-r002-20210119 (attached as .config)
compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project
22b68440e1647e16b5ee24b924986207173c02d1)
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 arm cross compiling tool for clang build
        # apt-get install binutils-arm-linux-gnueabi
        git remote add android-common https://android.googlesource.com/kernel/common
        git fetch --no-tags android-common android-4.19-r
        git checkout f0719dcb3a6ebfd657bff0df566e70f6fd18e3c9
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp(a)intel.com&gt;

All warnings (new ones prefixed by >>):

   In file included from include/linux/idr.h:16:
   In file included from include/linux/gfp.h:6:
   include/linux/mmzone.h:988:44: warning: comparison of integers of different signs:
'int' and 'enum zone_type' [-Wsign-compare]
           if (likely(!nodes && zonelist_zone_idx(z) <= highest_zoneidx))
                                ~~~~~~~~~~~~~~~~~~~~ ^  ~~~~~~~~~~~~~~~
   include/linux/compiler.h:45:39: note: expanded from macro 'likely'
   #  define likely(x)     (__branch_check__(x, 1, __builtin_constant_p(x)))
                                             ^
   include/linux/compiler.h:33:34: note: expanded from macro '__branch_check__'
                           ______r = __builtin_expect(!!(x), expect);      \
                                                         ^
   include/linux/compiler.h:56:36: note: expanded from macro 'if'
   #define if(cond, ...) __trace_if( (cond , ## __VA_ARGS__) )
                                      ^~~~
   include/linux/compiler.h:58:30: note: expanded from macro '__trace_if'
           if (__builtin_constant_p(!!(cond)) ? !!(cond) :                 \
                                       ^~~~
   In file included from drivers/dma/ti/omap-dma.c:9:
   In file included from include/linux/dmaengine.h:20:
   In file included from include/linux/device.h:16:
   In file included from include/linux/kobject.h:20:
   In file included from include/linux/sysfs.h:16:
   In file included from include/linux/kernfs.h:14:
   In file included from include/linux/idr.h:16:
   In file included from include/linux/gfp.h:6:
   include/linux/mmzone.h:988:44: warning: comparison of integers of different signs:
'int' and 'enum zone_type' [-Wsign-compare]
           if (likely(!nodes && zonelist_zone_idx(z) <= highest_zoneidx))
                                ~~~~~~~~~~~~~~~~~~~~ ^  ~~~~~~~~~~~~~~~
   include/linux/compiler.h:45:66: note: expanded from macro 'likely'
   #  define likely(x)     (__branch_check__(x, 1, __builtin_constant_p(x)))
                                                                        ^
   include/linux/compiler.h:35:19: note: expanded from macro '__branch_check__'
                                                expect, is_constant);      \
                                                        ^~~~~~~~~~~
   include/linux/compiler.h:56:36: note: expanded from macro 'if'
   #define if(cond, ...) __trace_if( (cond , ## __VA_ARGS__) )
                                      ^~~~
   include/linux/compiler.h:58:30: note: expanded from macro '__trace_if'
           if (__builtin_constant_p(!!(cond)) ? !!(cond) :                 \
                                       ^~~~
   In file included from drivers/dma/ti/omap-dma.c:9:
   In file included from include/linux/dmaengine.h:20:
   In file included from include/linux/device.h:16:
   In file included from include/linux/kobject.h:20:
   In file included from include/linux/sysfs.h:16:
   In file included from include/linux/kernfs.h:14:
   In file included from include/linux/idr.h:16:
   In file included from include/linux/gfp.h:6:
   include/linux/mmzone.h:988:44: warning: comparison of integers of different signs:
'int' and 'enum zone_type' [-Wsign-compare]
           if (likely(!nodes && zonelist_zone_idx(z) <= highest_zoneidx))
                                ~~~~~~~~~~~~~~~~~~~~ ^  ~~~~~~~~~~~~~~~
   include/linux/compiler.h:45:39: note: expanded from macro 'likely'
   #  define likely(x)     (__branch_check__(x, 1, __builtin_constant_p(x)))
                                             ^
   include/linux/compiler.h:33:34: note: expanded from macro '__branch_check__'
                           ______r = __builtin_expect(!!(x), expect);      \
                                                         ^
   include/linux/compiler.h:56:36: note: expanded from macro 'if'
   #define if(cond, ...) __trace_if( (cond , ## __VA_ARGS__) )
                                      ^~~~
   include/linux/compiler.h:69:16: note: expanded from macro '__trace_if'
                   ______r = !!(cond);                                     \
                                ^~~~
   In file included from drivers/dma/ti/omap-dma.c:9:
   In file included from include/linux/dmaengine.h:20:
   In file included from include/linux/device.h:16:
   In file included from include/linux/kobject.h:20:
   In file included from include/linux/sysfs.h:16:
   In file included from include/linux/kernfs.h:14:
   In file included from include/linux/idr.h:16:
   In file included from include/linux/gfp.h:6:
   include/linux/mmzone.h:988:44: warning: comparison of integers of different signs:
'int' and 'enum zone_type' [-Wsign-compare]
           if (likely(!nodes && zonelist_zone_idx(z) <= highest_zoneidx))
                                ~~~~~~~~~~~~~~~~~~~~ ^  ~~~~~~~~~~~~~~~
   include/linux/compiler.h:45:66: note: expanded from macro 'likely'
   #  define likely(x)     (__branch_check__(x, 1, __builtin_constant_p(x)))
                                                                        ^
   include/linux/compiler.h:35:19: note: expanded from macro '__branch_check__'
                                                expect, is_constant);      \
                                                        ^~~~~~~~~~~
   include/linux/compiler.h:56:36: note: expanded from macro 'if'
   #define if(cond, ...) __trace_if( (cond , ## __VA_ARGS__) )
                                      ^~~~
   include/linux/compiler.h:69:16: note: expanded from macro '__trace_if'
                   ______r = !!(cond);                                     \
                                ^~~~
   In file included from drivers/dma/ti/omap-dma.c:9:
   In file included from include/linux/dmaengine.h:24:
   In file included from include/linux/scatterlist.h:8:
   In file included from include/linux/mm.h:26:
   In file included from include/linux/page_ref.h:7:
   include/linux/page-flags.h:163:21: warning: comparison of integers of different signs:
'const unsigned long' and 'long' [-Wsign-compare]
           return page->flags == PAGE_POISON_PATTERN;
                  ~~~~~~~~~~~ ^  ~~~~~~~~~~~~~~~~~~~
   drivers/dma/ti/omap-dma.c:235:17: warning: comparison of integers of different signs:
'int' and 'unsigned int' [-Wsign-compare]
                   for (i = 0; i < d->sglen; i++) {
                               ~ ^ ~~~~~~~~
   drivers/dma/ti/omap-dma.c:1527:16: warning: comparison of integers of different signs:
'int' and 'unsigned int' [-Wsign-compare]
           for (i = 0; i < od->dma_requests; i++) {
                       ~ ^ ~~~~~~~~~~~~~~~~
...
> drivers/dma/ti/omap-dma.c:1626:34: warning: unused variable
'omap_dma_match' [-Wunused-const-variable]    static const struct
of_device_id omap_dma_match[] = {
                                    ^
   16 warnings generated.
   /usr/bin/as: unrecognized option '-EL'
   clang-12: error: assembler command failed with exit code 1 (use -v to see invocation)
--
           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/iommu/arm-smmu.c:168:44: note: expanded from macro 'for_each_cfg_sme'
           for (i = 0; idx = fwspec_smendx(fw, i), i < fw->num_ids; ++i)
                                                   ~ ^ ~~~~~~~~~~~
   drivers/iommu/arm-smmu.c:1148:2: warning: comparison of integers of different signs:
'int' and 'unsigned int' [-Wsign-compare]
           for_each_cfg_sme(fwspec, i, idx) {
           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/iommu/arm-smmu.c:168:20: note: expanded from macro 'for_each_cfg_sme'
           for (i = 0; idx = fwspec_smendx(fw, i), i < fw->num_ids; ++i)
                             ^~~~~~~~~~~~~~~~~~~~
   drivers/iommu/arm-smmu.c:166:5: note: expanded from macro 'fwspec_smendx'
           (i >= fw->num_ids ? INVALID_SMENDX : __fwspec_cfg(fw)->smendx[i])
            ~ ^  ~~~~~~~~~~~
   drivers/iommu/arm-smmu.c:1172:2: warning: comparison of integers of different signs:
'int' and 'unsigned int' [-Wsign-compare]
           for_each_cfg_sme(fwspec, i, idx) {
           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/iommu/arm-smmu.c:168:44: note: expanded from macro 'for_each_cfg_sme'
           for (i = 0; idx = fwspec_smendx(fw, i), i < fw->num_ids; ++i)
                                                   ~ ^ ~~~~~~~~~~~
   drivers/iommu/arm-smmu.c:1172:2: warning: comparison of integers of different signs:
'int' and 'unsigned int' [-Wsign-compare]
           for_each_cfg_sme(fwspec, i, idx) {
           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/iommu/arm-smmu.c:168:20: note: expanded from macro 'for_each_cfg_sme'
           for (i = 0; idx = fwspec_smendx(fw, i), i < fw->num_ids; ++i)
                             ^~~~~~~~~~~~~~~~~~~~
   drivers/iommu/arm-smmu.c:166:5: note: expanded from macro 'fwspec_smendx'
           (i >= fw->num_ids ? INVALID_SMENDX : __fwspec_cfg(fw)->smendx[i])
            ~ ^  ~~~~~~~~~~~
   drivers/iommu/arm-smmu.c:1194:2: warning: comparison of integers of different signs:
'int' and 'unsigned int' [-Wsign-compare]
           for_each_cfg_sme(fwspec, i, idx) {
           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/iommu/arm-smmu.c:168:44: note: expanded from macro 'for_each_cfg_sme'
           for (i = 0; idx = fwspec_smendx(fw, i), i < fw->num_ids; ++i)
                                                   ~ ^ ~~~~~~~~~~~
   drivers/iommu/arm-smmu.c:1194:2: warning: comparison of integers of different signs:
'int' and 'unsigned int' [-Wsign-compare]
           for_each_cfg_sme(fwspec, i, idx) {
           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/iommu/arm-smmu.c:168:20: note: expanded from macro 'for_each_cfg_sme'
           for (i = 0; idx = fwspec_smendx(fw, i), i < fw->num_ids; ++i)
                             ^~~~~~~~~~~~~~~~~~~~
   drivers/iommu/arm-smmu.c:166:5: note: expanded from macro 'fwspec_smendx'
           (i >= fw->num_ids ? INVALID_SMENDX : __fwspec_cfg(fw)->smendx[i])
            ~ ^  ~~~~~~~~~~~
   drivers/iommu/arm-smmu.c:1396:16: warning: comparison of integers of different signs:
'int' and 'unsigned int' [-Wsign-compare]
           for (i = 0; i < fwspec->num_ids; i++) {
                       ~ ^ ~~~~~~~~~~~~~~~
   drivers/iommu/arm-smmu.c:1465:2: warning: comparison of integers of different signs:
'int' and 'unsigned int' [-Wsign-compare]
           for_each_cfg_sme(fwspec, i, idx) {
           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/iommu/arm-smmu.c:168:44: note: expanded from macro 'for_each_cfg_sme'
           for (i = 0; idx = fwspec_smendx(fw, i), i < fw->num_ids; ++i)
                                                   ~ ^ ~~~~~~~~~~~
   drivers/iommu/arm-smmu.c:1465:2: warning: comparison of integers of different signs:
'int' and 'unsigned int' [-Wsign-compare]
           for_each_cfg_sme(fwspec, i, idx) {
           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/iommu/arm-smmu.c:168:20: note: expanded from macro 'for_each_cfg_sme'
           for (i = 0; idx = fwspec_smendx(fw, i), i < fw->num_ids; ++i)
                             ^~~~~~~~~~~~~~~~~~~~
   drivers/iommu/arm-smmu.c:166:5: note: expanded from macro 'fwspec_smendx'
           (i >= fw->num_ids ? INVALID_SMENDX : __fwspec_cfg(fw)->smendx[i])
            ~ ^  ~~~~~~~~~~~
   drivers/iommu/arm-smmu.c:1609:16: warning: comparison of integers of different signs:
'int' and 'u32' (aka 'unsigned int') [-Wsign-compare]
           for (i = 0; i < smmu->num_mapping_groups; ++i)
                       ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~~
   drivers/iommu/arm-smmu.c:1632:16: warning: comparison of integers of different signs:
'int' and 'u32' (aka 'unsigned int') [-Wsign-compare]
           for (i = 0; i < smmu->num_context_banks; ++i) {
                       ~ ^ ~~~~~~~~~~~~~~~~~~~~~~~
   drivers/iommu/arm-smmu.c:1796:16: warning: comparison of integers of different signs:
'int' and 'unsigned long' [-Wsign-compare]
           for (i = 0; i < size; i++)
                       ~ ^ ~~~~
   drivers/iommu/arm-smmu.c:2092:16: warning: comparison of integers of different signs:
'int' and 'u32' (aka 'unsigned int') [-Wsign-compare]
                   if (num_irqs > smmu->num_global_irqs)
                       ~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~~~~~
   include/linux/compiler.h:56:36: note: expanded from macro 'if'
   #define if(cond, ...) __trace_if( (cond , ## __VA_ARGS__) )
                                      ^~~~
   include/linux/compiler.h:69:16: note: expanded from macro '__trace_if'
                   ______r = !!(cond);                                     \
                                ^~~~
   drivers/iommu/arm-smmu.c:2092:16: warning: comparison of integers of different signs:
'int' and 'u32' (aka 'unsigned int') [-Wsign-compare]
                   if (num_irqs > smmu->num_global_irqs)
                       ~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~~~~~
   include/linux/compiler.h:56:36: note: expanded from macro 'if'
   #define if(cond, ...) __trace_if( (cond , ## __VA_ARGS__) )
                                      ^~~~
   include/linux/compiler.h:58:30: note: expanded from macro '__trace_if'
           if (__builtin_constant_p(!!(cond)) ? !!(cond) :                 \
                                       ^~~~
   drivers/iommu/arm-smmu.c:2092:16: warning: comparison of integers of different signs:
'int' and 'u32' (aka 'unsigned int') [-Wsign-compare]
                   if (num_irqs > smmu->num_global_irqs)
                       ~~~~~~~~ ^ ~~~~~~~~~~~~~~~~~~~~~
   include/linux/compiler.h:56:36: note: expanded from macro 'if'
   #define if(cond, ...) __trace_if( (cond , ## __VA_ARGS__) )
                                      ^~~~
   include/linux/compiler.h:58:42: note: expanded from macro '__trace_if'
           if (__builtin_constant_p(!!(cond)) ? !!(cond) :                 \
                                                   ^~~~
   drivers/iommu/arm-smmu.c:2135:16: warning: comparison of integers of different signs:
'int' and 'u32' (aka 'unsigned int') [-Wsign-compare]
           for (i = 0; i < smmu->num_global_irqs; ++i) {
                       ~ ^ ~~~~~~~~~~~~~~~~~~~~~
...
> drivers/iommu/arm-smmu.c:1927:34: warning: unused variable
'arm_smmu_of_match' [-Wunused-const-variable]    static const struct
of_device_id arm_smmu_of_match[] = {
                                    ^
   33 warnings generated.
   /usr/bin/as: unrecognized option '-EL'
   clang-12: error: assembler command failed with exit code 1 (use -v to see invocation)
--
   sound/soc/codecs/da7218.c:1779:2: warning: missing field 'connected'
initializer [-Wmissing-field-initializers]
   sound/soc/codecs/da7218.c:1704:44: note: expanded from macro
'DA7218_DMIX_ROUTES'
           {name, "In Filter1R Switch", "In Filter1R"},            \
                                                     ^
   sound/soc/codecs/da7218.c:1779:2: warning: missing field 'connected'
initializer [-Wmissing-field-initializers]
   sound/soc/codecs/da7218.c:1705:44: note: expanded from macro
'DA7218_DMIX_ROUTES'
           {name, "In Filter2L Switch", "In Filter2L"},            \
                                                     ^
   sound/soc/codecs/da7218.c:1779:2: warning: missing field 'connected'
initializer [-Wmissing-field-initializers]
   sound/soc/codecs/da7218.c:1706:44: note: expanded from macro
'DA7218_DMIX_ROUTES'
           {name, "In Filter2R Switch", "In Filter2R"},            \
                                                     ^
   sound/soc/codecs/da7218.c:1779:2: warning: missing field 'connected'
initializer [-Wmissing-field-initializers]
   sound/soc/codecs/da7218.c:1707:43: note: expanded from macro
'DA7218_DMIX_ROUTES'
           {name, "ToneGen Switch", "Tone Generator"},             \
                                                    ^
   sound/soc/codecs/da7218.c:1779:2: warning: missing field 'connected'
initializer [-Wmissing-field-initializers]
   sound/soc/codecs/da7218.c:1708:31: note: expanded from macro
'DA7218_DMIX_ROUTES'
           {name, "DAIL Switch", "DAIIN"},                         \
                                        ^
   sound/soc/codecs/da7218.c:1779:2: warning: missing field 'connected'
initializer [-Wmissing-field-initializers]
   sound/soc/codecs/da7218.c:1709:31: note: expanded from macro
'DA7218_DMIX_ROUTES'
           {name, "DAIR Switch", "DAIIN"}
                                        ^
   sound/soc/codecs/da7218.c:1781:45: warning: missing field 'connected'
initializer [-Wmissing-field-initializers]
           {"BiQuad Filter", NULL, "Mixer Out FilterL"},
                                                      ^
   sound/soc/codecs/da7218.c:1782:45: warning: missing field 'connected'
initializer [-Wmissing-field-initializers]
           {"BiQuad Filter", NULL, "Mixer Out FilterR"},
                                                      ^
   sound/soc/codecs/da7218.c:1784:58: warning: missing field 'connected'
initializer [-Wmissing-field-initializers]
           {"Out FilterL BiQuad Mux", "Bypass", "Mixer Out
FilterL"},
                                                                   ^
   sound/soc/codecs/da7218.c:1785:55: warning: missing field 'connected'
initializer [-Wmissing-field-initializers]
           {"Out FilterL BiQuad Mux", "Enabled", "BiQuad
Filter"},
                                                                ^
   sound/soc/codecs/da7218.c:1786:58: warning: missing field 'connected'
initializer [-Wmissing-field-initializers]
           {"Out FilterR BiQuad Mux", "Bypass", "Mixer Out
FilterR"},
                                                                   ^
   sound/soc/codecs/da7218.c:1787:55: warning: missing field 'connected'
initializer [-Wmissing-field-initializers]
           {"Out FilterR BiQuad Mux", "Enabled", "BiQuad
Filter"},
                                                                ^
   sound/soc/codecs/da7218.c:1789:2: warning: missing field 'connected'
initializer [-Wmissing-field-initializers]
           DA7218_DMIX_ST_ROUTES("ST Mixer Out FilterL"),
           ^
   sound/soc/codecs/da7218.c:1712:55: note: expanded from macro
'DA7218_DMIX_ST_ROUTES'
           {name, "Out FilterL Switch", "Out FilterL BiQuad Mux"}, \
                                                                ^
   sound/soc/codecs/da7218.c:1789:2: warning: missing field 'connected'
initializer [-Wmissing-field-initializers]
   sound/soc/codecs/da7218.c:1713:55: note: expanded from macro
'DA7218_DMIX_ST_ROUTES'
           {name, "Out FilterR Switch", "Out FilterR BiQuad Mux"}, \
                                                                ^
   sound/soc/codecs/da7218.c:1789:2: warning: missing field 'connected'
initializer [-Wmissing-field-initializers]
   sound/soc/codecs/da7218.c:1714:45: note: expanded from macro
'DA7218_DMIX_ST_ROUTES'
           {name, "Sidetone Switch", "Sidetone Filter"}
                                                      ^
   sound/soc/codecs/da7218.c:1790:2: warning: missing field 'connected'
initializer [-Wmissing-field-initializers]
           DA7218_DMIX_ST_ROUTES("ST Mixer Out FilterR"),
           ^
   sound/soc/codecs/da7218.c:1712:55: note: expanded from macro
'DA7218_DMIX_ST_ROUTES'
           {name, "Out FilterL Switch", "Out FilterL BiQuad Mux"}, \
                                                                ^
   sound/soc/codecs/da7218.c:1790:2: warning: missing field 'connected'
initializer [-Wmissing-field-initializers]
   sound/soc/codecs/da7218.c:1713:55: note: expanded from macro
'DA7218_DMIX_ST_ROUTES'
           {name, "Out FilterR Switch", "Out FilterR BiQuad Mux"}, \
                                                                ^
   sound/soc/codecs/da7218.c:1790:2: warning: missing field 'connected'
initializer [-Wmissing-field-initializers]
   sound/soc/codecs/da7218.c:1714:45: note: expanded from macro
'DA7218_DMIX_ST_ROUTES'
           {name, "Sidetone Switch", "Sidetone Filter"}
                                                      ^
   sound/soc/codecs/da7218.c:1792:46: warning: missing field 'connected'
initializer [-Wmissing-field-initializers]
           {"Out FilterL", NULL, "ST Mixer Out FilterL"},
                                                       ^
   sound/soc/codecs/da7218.c:1793:46: warning: missing field 'connected'
initializer [-Wmissing-field-initializers]
           {"Out FilterR", NULL, "ST Mixer Out FilterR"},
                                                       ^
   sound/soc/codecs/da7218.c:1795:41: warning: missing field 'connected'
initializer [-Wmissing-field-initializers]
           {"Mixout Left PGA", NULL, "Out FilterL"},
                                                  ^
   sound/soc/codecs/da7218.c:1796:42: warning: missing field 'connected'
initializer [-Wmissing-field-initializers]
           {"Mixout Right PGA", NULL, "Out FilterR"},
                                                   ^
   sound/soc/codecs/da7218.c:1798:48: warning: missing field 'connected'
initializer [-Wmissing-field-initializers]
           {"Headphone Left PGA", NULL, "Mixout Left PGA"},
                                                         ^
   sound/soc/codecs/da7218.c:1799:50: warning: missing field 'connected'
initializer [-Wmissing-field-initializers]
           {"Headphone Right PGA", NULL, "Mixout Right PGA"},
                                                           ^
   sound/soc/codecs/da7218.c:1801:36: warning: missing field 'connected'
initializer [-Wmissing-field-initializers]
           {"HPL", NULL, "Headphone Left PGA"},
                                             ^
   sound/soc/codecs/da7218.c:1802:37: warning: missing field 'connected'
initializer [-Wmissing-field-initializers]
           {"HPR", NULL, "Headphone Right PGA"},
                                              ^
   sound/soc/codecs/da7218.c:1804:29: warning: missing field 'connected'
initializer [-Wmissing-field-initializers]
           {"HPL", NULL, "Charge Pump"},
                                      ^
   sound/soc/codecs/da7218.c:1805:29: warning: missing field 'connected'
initializer [-Wmissing-field-initializers]
           {"HPR", NULL, "Charge Pump"},
                                      ^
...
> sound/soc/codecs/da7218.c:2285:34: warning: unused variable
'da7218_of_match' [-Wunused-const-variable]    static const struct
of_device_id da7218_of_match[] = {
                                    ^
   324 warnings generated.
   /usr/bin/as: unrecognized option '-EL'
   clang-12: error: assembler command failed with exit code 1 (use -v to see invocation)
..

vim +/omap_dma_match +1626 drivers/dma/ti/omap-dma.c

7bedaa5537604f34 drivers/dma/omap-dma.c Russell King 2012-04-13  1625  
8d30662aac256eb6 drivers/dma/omap-dma.c Jon Hunter   2013-02-26 @1626  static const struct
of_device_id omap_dma_match[] = {
8d30662aac256eb6 drivers/dma/omap-dma.c Jon Hunter   2013-02-26  1627  	{ .compatible =
"ti,omap2420-sdma", },
8d30662aac256eb6 drivers/dma/omap-dma.c Jon Hunter   2013-02-26  1628  	{ .compatible =
"ti,omap2430-sdma", },
8d30662aac256eb6 drivers/dma/omap-dma.c Jon Hunter   2013-02-26  1629  	{ .compatible =
"ti,omap3430-sdma", },
8d30662aac256eb6 drivers/dma/omap-dma.c Jon Hunter   2013-02-26  1630  	{ .compatible =
"ti,omap3630-sdma", },
8d30662aac256eb6 drivers/dma/omap-dma.c Jon Hunter   2013-02-26  1631  	{ .compatible =
"ti,omap4430-sdma", },
8d30662aac256eb6 drivers/dma/omap-dma.c Jon Hunter   2013-02-26  1632  	{},
8d30662aac256eb6 drivers/dma/omap-dma.c Jon Hunter   2013-02-26  1633  };
8d30662aac256eb6 drivers/dma/omap-dma.c Jon Hunter   2013-02-26  1634 
MODULE_DEVICE_TABLE(of, omap_dma_match);
8d30662aac256eb6 drivers/dma/omap-dma.c Jon Hunter   2013-02-26  1635  

:::::: The code at line 1626 was first introduced by commit
:::::: 8d30662aac256eb61bc2f1d9cf1191825ef96328 dmaengine: OMAP: Register SDMA controller
with Device Tree DMA driver

:::::: TO: Jon Hunter <jon-hunter(a)ti.com&gt;
:::::: CC: Vinod Koul <vinod.koul(a)intel.com&gt;

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[kbuild-all] [android-common:android-4.19-r 1/1] drivers/dma/ti/omap-dma.c:1626:34: warning: unused variable 'omap_dma_match'