CC: l...@lists.linux.dev CC: kbuild-...@lists.01.org BCC: l...@intel.com CC: linux-ker...@vger.kernel.org TO: Mauro Carvalho Chehab <mche...@kernel.org> CC: linux-me...@vger.kernel.org CC: Laurent Pinchart <laurent.pinch...@ideasonboard.com>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: c00c5e1d157bec0ef0b0b59aa5482eb8dc7e8e49 commit: ee4a77a32b39064fdab0aa2b36bbd35ebf57e077 media: platform: place Renesas drivers on a separate dir date: 6 weeks ago :::::: branch date: 14 hours ago :::::: commit date: 6 weeks ago config: arm-randconfig-c002-20220418 (https://download.01.org/0day-ci/archive/20220423/202204232305.ezkagdih-...@intel.com/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project b27430f9f46b88bcd54d992debc8d72e131e1bd0) 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 # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=ee4a77a32b39064fdab0aa2b36bbd35ebf57e077 git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout ee4a77a32b39064fdab0aa2b36bbd35ebf57e077 # save the config file COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm clang-analyzer If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <l...@intel.com> clang-analyzer warnings: (new ones prefixed by >>) drivers/media/dvb-frontends/cxd2099.c:506:3: note: Calling 'read_reg' read_reg(ci, 0x01, &slotstat); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/media/dvb-frontends/cxd2099.c:79:9: note: Calling 'read_block' return read_block(ci, reg, val, 1); ^~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/media/dvb-frontends/cxd2099.c:57:6: note: Assuming 'adr' is not equal to field 'lastaddress' if (ci->lastaddress != adr) ^~~~~~~~~~~~~~~~~~~~~~ drivers/media/dvb-frontends/cxd2099.c:57:2: note: Taking true branch if (ci->lastaddress != adr) ^ drivers/media/dvb-frontends/cxd2099.c:59:6: note: Assuming 'status' is not equal to 0 if (!status) { ^~~~~~~ drivers/media/dvb-frontends/cxd2099.c:59:2: note: Taking false branch if (!status) { ^ drivers/media/dvb-frontends/cxd2099.c:74:2: note: Returning without writing to '*data' return status; ^ drivers/media/dvb-frontends/cxd2099.c:79:9: note: Returning from 'read_block' return read_block(ci, reg, val, 1); ^~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/media/dvb-frontends/cxd2099.c:79:2: note: Returning without writing to '*val' return read_block(ci, reg, val, 1); ^ drivers/media/dvb-frontends/cxd2099.c:506:3: note: Returning from 'read_reg' read_reg(ci, 0x01, &slotstat); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/media/dvb-frontends/cxd2099.c:507:11: note: The right operand of '&' is a garbage value if (!(2 & slotstat)) { ^ ~~~~~~~~ Suppressed 9 warnings (9 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 4 warnings generated. Suppressed 4 warnings (3 in non-user code, 1 with check filters). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 11 warnings generated. drivers/clocksource/timer-ti-dm-systimer.c:476:3: warning: Value stored to 'l' is never read [clang-analyzer-deadcode.DeadStores] l = readl_relaxed(ctrl); ^ drivers/clocksource/timer-ti-dm-systimer.c:476:3: note: Value stored to 'l' is never read Suppressed 10 warnings (10 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 10 warnings generated. drivers/clocksource/timer-fttmr010.c:99:8: warning: Excessive padding in 'struct fttmr010' (39 padding bytes, where 7 is optimal). Optimal fields order: clkevt, base, tick_rate, t1_enable_val, timer_shutdown, delay_timer, is_aspeed, consider reordering the fields or adding explicit padding members [clang-analyzer-optin.performance.Padding] struct fttmr010 { ~~~~~~~^~~~~~~~~~ drivers/clocksource/timer-fttmr010.c:99:8: note: Excessive padding in 'struct fttmr010' (39 padding bytes, where 7 is optimal). Optimal fields order: clkevt, base, tick_rate, t1_enable_val, timer_shutdown, delay_timer, is_aspeed, consider reordering the fields or adding explicit padding members struct fttmr010 { ~~~~~~~^~~~~~~~~~ Suppressed 9 warnings (9 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 11 warnings generated. drivers/clocksource/timer-ixp4xx.c:48:8: warning: Excessive padding in 'struct ixp4xx_timer' (48 padding bytes, where 16 is optimal). Optimal fields order: clkevt, base, latch, delay_timer, consider reordering the fields or adding explicit padding members [clang-analyzer-optin.performance.Padding] struct ixp4xx_timer { ~~~~~~~^~~~~~~~~~~~~~ drivers/clocksource/timer-ixp4xx.c:48:8: note: Excessive padding in 'struct ixp4xx_timer' (48 padding bytes, where 16 is optimal). Optimal fields order: clkevt, base, latch, delay_timer, consider reordering the fields or adding explicit padding members struct ixp4xx_timer { ~~~~~~~^~~~~~~~~~~~~~ Suppressed 10 warnings (10 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 10 warnings generated. Suppressed 10 warnings (10 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 10 warnings generated. Suppressed 10 warnings (10 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 9 warnings generated. Suppressed 9 warnings (9 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 9 warnings generated. Suppressed 9 warnings (9 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 9 warnings generated. Suppressed 9 warnings (9 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 10 warnings generated. Suppressed 10 warnings (9 in non-user code, 1 with check filters). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 9 warnings generated. Suppressed 9 warnings (9 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 11 warnings generated. >> drivers/media/platform/renesas/rcar_jpu.c:1551:17: warning: Value stored to >> 'error' during its initialization is never read >> [clang-analyzer-deadcode.DeadStores] unsigned char error = jpu_read(jpu, JCDERR) & JCDERR_MASK; ^~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/media/platform/renesas/rcar_jpu.c:1551:17: note: Value stored to 'error' during its initialization is never read unsigned char error = jpu_read(jpu, JCDERR) & JCDERR_MASK; ^~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Suppressed 10 warnings (9 in non-user code, 1 with check filters). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 25 warnings generated. drivers/media/platform/sti/hva/hva-v4l2.c:230:17: warning: Value stored to 'dev' during its initialization is never read [clang-analyzer-deadcode.DeadStores] struct device *dev = ctx_to_dev(ctx); ^~~ drivers/media/platform/sti/hva/hva-v4l2.c:230:17: note: Value stored to 'dev' during its initialization is never read struct device *dev = ctx_to_dev(ctx); ^~~ drivers/media/platform/sti/hva/hva-v4l2.c:231:25: warning: Value stored to 'stream' during its initialization is never read [clang-analyzer-deadcode.DeadStores] struct hva_streaminfo *stream = &ctx->streaminfo; ^~~~~~ ~~~~~~~~~~~~~~~~ drivers/media/platform/sti/hva/hva-v4l2.c:231:25: note: Value stored to 'stream' during its initialization is never read struct hva_streaminfo *stream = &ctx->streaminfo; ^~~~~~ ~~~~~~~~~~~~~~~~ drivers/media/platform/sti/hva/hva-v4l2.c:232:24: warning: Value stored to 'frame' during its initialization is never read [clang-analyzer-deadcode.DeadStores] struct hva_frameinfo *frame = &ctx->frameinfo; ^~~~~ ~~~~~~~~~~~~~~~ drivers/media/platform/sti/hva/hva-v4l2.c:232:24: note: Value stored to 'frame' during its initialization is never read struct hva_frameinfo *frame = &ctx->frameinfo; ^~~~~ ~~~~~~~~~~~~~~~ drivers/media/platform/sti/hva/hva-v4l2.c:339:17: warning: Value stored to 'dev' during its initialization is never read [clang-analyzer-deadcode.DeadStores] struct device *dev = ctx_to_dev(ctx); ^~~ drivers/media/platform/sti/hva/hva-v4l2.c:339:17: note: Value stored to 'dev' during its initialization is never read struct device *dev = ctx_to_dev(ctx); ^~~ drivers/media/platform/sti/hva/hva-v4l2.c:403:17: warning: Value stored to 'dev' during its initialization is never read [clang-analyzer-deadcode.DeadStores] struct device *dev = ctx_to_dev(ctx); ^~~ drivers/media/platform/sti/hva/hva-v4l2.c:403:17: note: Value stored to 'dev' during its initialization is never read struct device *dev = ctx_to_dev(ctx); ^~~ drivers/media/platform/sti/hva/hva-v4l2.c:453:17: warning: Value stored to 'dev' during its initialization is never read [clang-analyzer-deadcode.DeadStores] struct device *dev = ctx_to_dev(ctx); ^~~ drivers/media/platform/sti/hva/hva-v4l2.c:453:17: note: Value stored to 'dev' during its initialization is never read struct device *dev = ctx_to_dev(ctx); ^~~ drivers/media/platform/sti/hva/hva-v4l2.c:483:17: warning: Value stored to 'dev' during its initialization is never read [clang-analyzer-deadcode.DeadStores] struct device *dev = ctx_to_dev(ctx); ^~~ drivers/media/platform/sti/hva/hva-v4l2.c:483:17: note: Value stored to 'dev' during its initialization is never read struct device *dev = ctx_to_dev(ctx); ^~~ drivers/media/platform/sti/hva/hva-v4l2.c:557:17: warning: Value stored to 'dev' during its initialization is never read [clang-analyzer-deadcode.DeadStores] struct device *dev = ctx_to_dev(ctx); ^~~ drivers/media/platform/sti/hva/hva-v4l2.c:557:17: note: Value stored to 'dev' during its initialization is never read struct device *dev = ctx_to_dev(ctx); ^~~ drivers/media/platform/sti/hva/hva-v4l2.c:620:17: warning: Value stored to 'dev' during its initialization is never read [clang-analyzer-deadcode.DeadStores] struct device *dev = ctx_to_dev(ctx); ^~~ drivers/media/platform/sti/hva/hva-v4l2.c:620:17: note: Value stored to 'dev' during its initialization is never read struct device *dev = ctx_to_dev(ctx); ^~~ drivers/media/platform/sti/hva/hva-v4l2.c:695:17: warning: Value stored to 'dev' during its initialization is never read [clang-analyzer-deadcode.DeadStores] struct device *dev = ctx_to_dev(ctx); ^~~ drivers/media/platform/sti/hva/hva-v4l2.c:695:17: note: Value stored to 'dev' during its initialization is never read struct device *dev = ctx_to_dev(ctx); ^~~ drivers/media/platform/sti/hva/hva-v4l2.c:866:17: warning: Value stored to 'dev' during its initialization is never read [clang-analyzer-deadcode.DeadStores] struct device *dev = ctx_to_dev(ctx); ^~~ drivers/media/platform/sti/hva/hva-v4l2.c:866:17: note: Value stored to 'dev' during its initialization is never read struct device *dev = ctx_to_dev(ctx); ^~~ drivers/media/platform/sti/hva/hva-v4l2.c:876:17: warning: Value stored to 'dev' during its initialization is never read [clang-analyzer-deadcode.DeadStores] struct device *dev = ctx_to_dev(ctx); ^~~ drivers/media/platform/sti/hva/hva-v4l2.c:876:17: note: Value stored to 'dev' during its initialization is never read struct device *dev = ctx_to_dev(ctx); ^~~ drivers/media/platform/sti/hva/hva-v4l2.c:914:17: warning: Value stored to 'dev' during its initialization is never read [clang-analyzer-deadcode.DeadStores] struct device *dev = ctx_to_dev(ctx); ^~~ drivers/media/platform/sti/hva/hva-v4l2.c:914:17: note: Value stored to 'dev' during its initialization is never read struct device *dev = ctx_to_dev(ctx); ^~~ drivers/media/platform/sti/hva/hva-v4l2.c:936:17: warning: Value stored to 'dev' during its initialization is never read [clang-analyzer-deadcode.DeadStores] struct device *dev = ctx_to_dev(ctx); ^~~ drivers/media/platform/sti/hva/hva-v4l2.c:936:17: note: Value stored to 'dev' during its initialization is never read struct device *dev = ctx_to_dev(ctx); ^~~ drivers/media/platform/sti/hva/hva-v4l2.c:1069:17: warning: Value stored to 'dev' during its initialization is never read [clang-analyzer-deadcode.DeadStores] struct device *dev = ctx_to_dev(ctx); ^~~ drivers/media/platform/sti/hva/hva-v4l2.c:1069:17: note: Value stored to 'dev' during its initialization is never read struct device *dev = ctx_to_dev(ctx); ^~~ Suppressed 10 warnings (9 in non-user code, 1 with check filters). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. -- 9 warnings generated. Suppressed 9 warnings (9 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 9 warnings generated. Suppressed 9 warnings (9 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 9 warnings generated. Suppressed 9 warnings (9 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 9 warnings generated. Suppressed 9 warnings (9 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 9 warnings generated. Suppressed 9 warnings (9 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 9 warnings generated. Suppressed 9 warnings (9 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 9 warnings generated. Suppressed 9 warnings (9 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 10 warnings generated. Suppressed 10 warnings (9 in non-user code, 1 with check filters). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 10 warnings generated. Suppressed 10 warnings (9 in non-user code, 1 with check filters). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 10 warnings generated. Suppressed 10 warnings (9 in non-user code, 1 with check filters). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 11 warnings generated. drivers/mfd/qcom-pm8xxx.c:549:2: warning: Value stored to 'rev' is never read [clang-analyzer-deadcode.DeadStores] rev |= val << BITS_PER_BYTE; ^ ~~~~~~~~~~~~~~~~~~~~ drivers/mfd/qcom-pm8xxx.c:549:2: note: Value stored to 'rev' is never read rev |= val << BITS_PER_BYTE; ^ ~~~~~~~~~~~~~~~~~~~~ Suppressed 10 warnings (9 in non-user code, 1 with check filters). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 9 warnings generated. Suppressed 9 warnings (9 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 9 warnings generated. Suppressed 9 warnings (9 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 9 warnings generated. Suppressed 9 warnings (9 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 9 warnings generated. Suppressed 9 warnings (9 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 10 warnings generated. Suppressed 10 warnings (10 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 10 warnings generated. Suppressed 10 warnings (9 in non-user code, 1 with check filters). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 9 warnings generated. Suppressed 9 warnings (9 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 9 warnings generated. Suppressed 9 warnings (9 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 9 warnings generated. Suppressed 9 warnings (9 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 9 warnings generated. Suppressed 9 warnings (9 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 9 warnings generated. Suppressed 9 warnings (9 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 9 warnings generated. Suppressed 9 warnings (9 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 9 warnings generated. Suppressed 9 warnings (9 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 9 warnings generated. Suppressed 9 warnings (9 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 9 warnings generated. Suppressed 9 warnings (9 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 9 warnings generated. Suppressed 9 warnings (9 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 9 warnings generated. Suppressed 9 warnings (9 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 9 warnings generated. Suppressed 9 warnings (9 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 9 warnings generated. Suppressed 9 warnings (9 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 9 warnings generated. Suppressed 9 warnings (9 in non-user code). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 11 warnings generated. >> drivers/media/platform/renesas/rcar_jpu.c:1551:17: warning: Value stored to >> 'error' during its initialization is never read >> [clang-analyzer-deadcode.DeadStores] unsigned char error = jpu_read(jpu, JCDERR) & JCDERR_MASK; ^~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/media/platform/renesas/rcar_jpu.c:1551:17: note: Value stored to 'error' during its initialization is never read unsigned char error = jpu_read(jpu, JCDERR) & JCDERR_MASK; ^~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Suppressed 10 warnings (9 in non-user code, 1 with check filters). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. 25 warnings generated. drivers/media/platform/sti/hva/hva-v4l2.c:230:17: warning: Value stored to 'dev' during its initialization is never read [clang-analyzer-deadcode.DeadStores] struct device *dev = ctx_to_dev(ctx); ^~~ drivers/media/platform/sti/hva/hva-v4l2.c:230:17: note: Value stored to 'dev' during its initialization is never read struct device *dev = ctx_to_dev(ctx); ^~~ drivers/media/platform/sti/hva/hva-v4l2.c:231:25: warning: Value stored to 'stream' during its initialization is never read [clang-analyzer-deadcode.DeadStores] struct hva_streaminfo *stream = &ctx->streaminfo; ^~~~~~ ~~~~~~~~~~~~~~~~ drivers/media/platform/sti/hva/hva-v4l2.c:231:25: note: Value stored to 'stream' during its initialization is never read struct hva_streaminfo *stream = &ctx->streaminfo; ^~~~~~ ~~~~~~~~~~~~~~~~ drivers/media/platform/sti/hva/hva-v4l2.c:232:24: warning: Value stored to 'frame' during its initialization is never read [clang-analyzer-deadcode.DeadStores] struct hva_frameinfo *frame = &ctx->frameinfo; ^~~~~ ~~~~~~~~~~~~~~~ drivers/media/platform/sti/hva/hva-v4l2.c:232:24: note: Value stored to 'frame' during its initialization is never read struct hva_frameinfo *frame = &ctx->frameinfo; ^~~~~ ~~~~~~~~~~~~~~~ drivers/media/platform/sti/hva/hva-v4l2.c:339:17: warning: Value stored to 'dev' during its initialization is never read [clang-analyzer-deadcode.DeadStores] struct device *dev = ctx_to_dev(ctx); ^~~ drivers/media/platform/sti/hva/hva-v4l2.c:339:17: note: Value stored to 'dev' during its initialization is never read struct device *dev = ctx_to_dev(ctx); ^~~ drivers/media/platform/sti/hva/hva-v4l2.c:403:17: warning: Value stored to 'dev' during its initialization is never read [clang-analyzer-deadcode.DeadStores] struct device *dev = ctx_to_dev(ctx); ^~~ drivers/media/platform/sti/hva/hva-v4l2.c:403:17: note: Value stored to 'dev' during its initialization is never read struct device *dev = ctx_to_dev(ctx); ^~~ drivers/media/platform/sti/hva/hva-v4l2.c:453:17: warning: Value stored to 'dev' during its initialization is never read [clang-analyzer-deadcode.DeadStores] struct device *dev = ctx_to_dev(ctx); ^~~ drivers/media/platform/sti/hva/hva-v4l2.c:453:17: note: Value stored to 'dev' during its initialization is never read struct device *dev = ctx_to_dev(ctx); ^~~ drivers/media/platform/sti/hva/hva-v4l2.c:483:17: warning: Value stored to 'dev' during its initialization is never read [clang-analyzer-deadcode.DeadStores] struct device *dev = ctx_to_dev(ctx); ^~~ drivers/media/platform/sti/hva/hva-v4l2.c:483:17: note: Value stored to 'dev' during its initialization is never read struct device *dev = ctx_to_dev(ctx); ^~~ drivers/media/platform/sti/hva/hva-v4l2.c:557:17: warning: Value stored to 'dev' during its initialization is never read [clang-analyzer-deadcode.DeadStores] struct device *dev = ctx_to_dev(ctx); ^~~ drivers/media/platform/sti/hva/hva-v4l2.c:557:17: note: Value stored to 'dev' during its initialization is never read struct device *dev = ctx_to_dev(ctx); ^~~ drivers/media/platform/sti/hva/hva-v4l2.c:620:17: warning: Value stored to 'dev' during its initialization is never read [clang-analyzer-deadcode.DeadStores] struct device *dev = ctx_to_dev(ctx); ^~~ drivers/media/platform/sti/hva/hva-v4l2.c:620:17: note: Value stored to 'dev' during its initialization is never read struct device *dev = ctx_to_dev(ctx); ^~~ drivers/media/platform/sti/hva/hva-v4l2.c:695:17: warning: Value stored to 'dev' during its initialization is never read [clang-analyzer-deadcode.DeadStores] struct device *dev = ctx_to_dev(ctx); ^~~ drivers/media/platform/sti/hva/hva-v4l2.c:695:17: note: Value stored to 'dev' during its initialization is never read struct device *dev = ctx_to_dev(ctx); ^~~ drivers/media/platform/sti/hva/hva-v4l2.c:866:17: warning: Value stored to 'dev' during its initialization is never read [clang-analyzer-deadcode.DeadStores] struct device *dev = ctx_to_dev(ctx); ^~~ drivers/media/platform/sti/hva/hva-v4l2.c:866:17: note: Value stored to 'dev' during its initialization is never read struct device *dev = ctx_to_dev(ctx); ^~~ drivers/media/platform/sti/hva/hva-v4l2.c:876:17: warning: Value stored to 'dev' during its initialization is never read [clang-analyzer-deadcode.DeadStores] struct device *dev = ctx_to_dev(ctx); ^~~ drivers/media/platform/sti/hva/hva-v4l2.c:876:17: note: Value stored to 'dev' during its initialization is never read struct device *dev = ctx_to_dev(ctx); ^~~ drivers/media/platform/sti/hva/hva-v4l2.c:914:17: warning: Value stored to 'dev' during its initialization is never read [clang-analyzer-deadcode.DeadStores] struct device *dev = ctx_to_dev(ctx); ^~~ drivers/media/platform/sti/hva/hva-v4l2.c:914:17: note: Value stored to 'dev' during its initialization is never read struct device *dev = ctx_to_dev(ctx); ^~~ drivers/media/platform/sti/hva/hva-v4l2.c:936:17: warning: Value stored to 'dev' during its initialization is never read [clang-analyzer-deadcode.DeadStores] struct device *dev = ctx_to_dev(ctx); ^~~ drivers/media/platform/sti/hva/hva-v4l2.c:936:17: note: Value stored to 'dev' during its initialization is never read struct device *dev = ctx_to_dev(ctx); ^~~ drivers/media/platform/sti/hva/hva-v4l2.c:1069:17: warning: Value stored to 'dev' during its initialization is never read [clang-analyzer-deadcode.DeadStores] struct device *dev = ctx_to_dev(ctx); ^~~ drivers/media/platform/sti/hva/hva-v4l2.c:1069:17: note: Value stored to 'dev' during its initialization is never read struct device *dev = ctx_to_dev(ctx); ^~~ Suppressed 10 warnings (9 in non-user code, 1 with check filters). Use -header-filter=.* to display errors from all non-system headers. Use -system-headers to display errors from system headers as well. vim +/error +1551 drivers/media/platform/renesas/rcar_jpu.c 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1489 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1490 /* 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1491 * ============================================================================ 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1492 * IRQ handler 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1493 * ============================================================================ 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1494 */ 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1495 static irqreturn_t jpu_irq_handler(int irq, void *dev_id) 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1496 { 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1497 struct jpu *jpu = dev_id; 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1498 struct jpu_ctx *curr_ctx; 2d7007153f0c9b drivers/media/platform/rcar_jpu.c Junghak Sung 2015-09-22 1499 struct vb2_v4l2_buffer *src_buf, *dst_buf; 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1500 unsigned int int_status; 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1501 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1502 int_status = jpu_read(jpu, JINTS); 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1503 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1504 /* ...spurious interrupt */ 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1505 if (!((JINTS_TRANSF_COMPL | JINTS_PROCESS_COMPL | JINTS_ERR) & 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1506 int_status)) 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1507 return IRQ_NONE; 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1508 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1509 /* ...clear interrupts */ 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1510 jpu_write(jpu, ~(int_status & JINTS_MASK), JINTS); 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1511 if (int_status & (JINTS_ERR | JINTS_PROCESS_COMPL)) 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1512 jpu_write(jpu, JCCMD_JEND, JCCMD); 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1513 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1514 spin_lock(&jpu->lock); 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1515 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1516 if ((int_status & JINTS_PROCESS_COMPL) && 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1517 !(int_status & JINTS_TRANSF_COMPL)) 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1518 goto handled; 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1519 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1520 curr_ctx = v4l2_m2m_get_curr_priv(jpu->m2m_dev); 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1521 if (!curr_ctx) { 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1522 /* ...instance is not running */ 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1523 dev_err(jpu->dev, "no active context for m2m\n"); 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1524 goto handled; 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1525 } 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1526 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1527 src_buf = v4l2_m2m_src_buf_remove(curr_ctx->fh.m2m_ctx); 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1528 dst_buf = v4l2_m2m_dst_buf_remove(curr_ctx->fh.m2m_ctx); 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1529 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1530 if (int_status & JINTS_TRANSF_COMPL) { 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1531 if (curr_ctx->encoder) { 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1532 unsigned long payload_size = jpu_read(jpu, JCDTCU) << 16 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1533 | jpu_read(jpu, JCDTCM) << 8 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1534 | jpu_read(jpu, JCDTCD); 2d7007153f0c9b drivers/media/platform/rcar_jpu.c Junghak Sung 2015-09-22 1535 vb2_set_plane_payload(&dst_buf->vb2_buf, 0, 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1536 payload_size + JPU_JPEG_HDR_SIZE); 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1537 } 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1538 2d7007153f0c9b drivers/media/platform/rcar_jpu.c Junghak Sung 2015-09-22 1539 dst_buf->field = src_buf->field; d6dd645eae76ee drivers/media/platform/rcar_jpu.c Junghak Sung 2015-11-03 1540 dst_buf->vb2_buf.timestamp = src_buf->vb2_buf.timestamp; 2d7007153f0c9b drivers/media/platform/rcar_jpu.c Junghak Sung 2015-09-22 1541 if (src_buf->flags & V4L2_BUF_FLAG_TIMECODE) 2d7007153f0c9b drivers/media/platform/rcar_jpu.c Junghak Sung 2015-09-22 1542 dst_buf->timecode = src_buf->timecode; 2d7007153f0c9b drivers/media/platform/rcar_jpu.c Junghak Sung 2015-09-22 1543 dst_buf->flags = src_buf->flags & 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1544 (V4L2_BUF_FLAG_TIMECODE | V4L2_BUF_FLAG_KEYFRAME | 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1545 V4L2_BUF_FLAG_PFRAME | V4L2_BUF_FLAG_BFRAME | 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1546 V4L2_BUF_FLAG_TSTAMP_SRC_MASK); 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1547 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1548 v4l2_m2m_buf_done(src_buf, VB2_BUF_STATE_DONE); 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1549 v4l2_m2m_buf_done(dst_buf, VB2_BUF_STATE_DONE); 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1550 } else if (int_status & JINTS_ERR) { 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 @1551 unsigned char error = jpu_read(jpu, JCDERR) & JCDERR_MASK; 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1552 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1553 dev_dbg(jpu->dev, "processing error: %#X: %s\n", error, 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1554 error_to_text[error]); 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1555 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1556 v4l2_m2m_buf_done(src_buf, VB2_BUF_STATE_ERROR); 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1557 v4l2_m2m_buf_done(dst_buf, VB2_BUF_STATE_ERROR); 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1558 } 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1559 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1560 jpu->curr = NULL; 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1561 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1562 /* ...reset JPU after completion */ 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1563 jpu_write(jpu, JCCMD_SRST, JCCMD); 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1564 spin_unlock(&jpu->lock); 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1565 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1566 v4l2_m2m_job_finish(jpu->m2m_dev, curr_ctx->fh.m2m_ctx); 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1567 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1568 return IRQ_HANDLED; 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1569 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1570 handled: 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1571 spin_unlock(&jpu->lock); 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1572 return IRQ_HANDLED; 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1573 } 2c42cdbaec56a9 drivers/media/platform/rcar_jpu.c Mikhail Ulyanov 2015-07-22 1574 :::::: The code at line 1551 was first introduced by commit :::::: 2c42cdbaec56a9565a2717b450506150c9c55103 [media] V4L2: platform: Add Renesas R-Car JPEG codec driver :::::: TO: Mikhail Ulyanov <mikhail.ulya...@cogentembedded.com> :::::: CC: Mauro Carvalho Chehab <mche...@osg.samsung.com> -- 0-DAY CI Kernel Test Service https://01.org/lkp _______________________________________________ kbuild mailing list -- kbuild@lists.01.org To unsubscribe send an email to kbuild-le...@lists.01.org
