CC: [email protected] CC: [email protected] CC: [email protected] TO: Wang Kefeng <[email protected]> CC: "Russell King (Oracle)" <[email protected]> CC: Rob Herring <[email protected]>
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: c5c17547b778975b3d83a73c8d84e8fb5ecf3ba5 commit: 854f695c3d41853eb7efcd436023c5ab92a257eb ARM: 9119/1: amba: Properly handle device probe without IRQ domain date: 6 weeks ago :::::: branch date: 12 hours ago :::::: commit date: 6 weeks ago config: arm-randconfig-c002-20211123 (https://download.01.org/0day-ci/archive/20211127/[email protected]/config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 49e3838145dff1ec91c2e67a2cb562775c8d2a08) 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=854f695c3d41853eb7efcd436023c5ab92a257eb git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 854f695c3d41853eb7efcd436023c5ab92a257eb # save the config file to linux build tree 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 <[email protected]> clang-analyzer warnings: (new ones prefixed by >>) ^~~~~~~~~~~~~~~~~~~~~ kernel/bpf/verifier.c:12273:7: note: 'is_narrower_load' is true if (is_narrower_load) { ^~~~~~~~~~~~~~~~ kernel/bpf/verifier.c:12273:3: note: Taking true branch if (is_narrower_load) { ^ kernel/bpf/verifier.c:12276:8: note: 'type' is not equal to BPF_WRITE if (type == BPF_WRITE) { ^~~~ kernel/bpf/verifier.c:12276:4: note: Taking false branch if (type == BPF_WRITE) { ^ kernel/bpf/verifier.c:12282:8: note: 'ctx_field_size' is not equal to 4 if (ctx_field_size == 4) ^~~~~~~~~~~~~~ kernel/bpf/verifier.c:12282:4: note: Taking false branch if (ctx_field_size == 4) ^ kernel/bpf/verifier.c:12284:13: note: 'ctx_field_size' is not equal to 8 else if (ctx_field_size == 8) ^~~~~~~~~~~~~~ kernel/bpf/verifier.c:12284:9: note: Taking false branch else if (ctx_field_size == 8) ^ kernel/bpf/verifier.c:12294:7: note: Assuming 'cnt' is not equal to 0 if (cnt == 0 || cnt >= ARRAY_SIZE(insn_buf) || ^~~~~~~~ kernel/bpf/verifier.c:12294:7: note: Left side of '||' is false kernel/bpf/verifier.c:12294:19: note: Assuming the condition is false if (cnt == 0 || cnt >= ARRAY_SIZE(insn_buf) || ^~~~~~~~~~~~~~~~~~~~~~~~~~~ kernel/bpf/verifier.c:12294:7: note: Left side of '||' is false if (cnt == 0 || cnt >= ARRAY_SIZE(insn_buf) || ^ kernel/bpf/verifier.c:12295:8: note: 'ctx_field_size' is not equal to 0 (ctx_field_size && !target_size)) { ^~~~~~~~~~~~~~ kernel/bpf/verifier.c:12295:8: note: Left side of '&&' is true kernel/bpf/verifier.c:12295:26: note: Assuming 'target_size' is not equal to 0 (ctx_field_size && !target_size)) { ^~~~~~~~~~~~ kernel/bpf/verifier.c:12294:3: note: Taking false branch if (cnt == 0 || cnt >= ARRAY_SIZE(insn_buf) || ^ kernel/bpf/verifier.c:12300:7: note: 'is_narrower_load' is true if (is_narrower_load && size < target_size) { ^~~~~~~~~~~~~~~~ kernel/bpf/verifier.c:12300:7: note: Left side of '&&' is true kernel/bpf/verifier.c:12300:27: note: Assuming 'size' is < 'target_size' if (is_narrower_load && size < target_size) { ^~~~~~~~~~~~~~~~~~ kernel/bpf/verifier.c:12300:3: note: Taking true branch if (is_narrower_load && size < target_size) { ^ kernel/bpf/verifier.c:12303:8: note: Assuming 'shift' is 0 if (shift && cnt + 1 >= ARRAY_SIZE(insn_buf)) { ^~~~~ kernel/bpf/verifier.c:12303:14: note: Left side of '&&' is false if (shift && cnt + 1 >= ARRAY_SIZE(insn_buf)) { ^ kernel/bpf/verifier.c:12307:8: note: 'ctx_field_size' is > 4 if (ctx_field_size <= 4) { ^~~~~~~~~~~~~~ kernel/bpf/verifier.c:12307:4: note: Taking false branch if (ctx_field_size <= 4) { ^ kernel/bpf/verifier.c:12315:9: note: 'shift' is 0 if (shift) ^~~~~ kernel/bpf/verifier.c:12315:5: note: Taking false branch if (shift) ^ kernel/bpf/verifier.c:12320:15: note: The result of the left shift is undefined due to shifting by '64', which is greater or equal to the width of type 'unsigned long long' (1ULL << size * 8) - 1); ^ include/linux/filter.h:116:12: note: expanded from macro 'BPF_ALU64_IMM' .imm = IMM }) ^~~ 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. 2 warnings generated. Suppressed 2 warnings (2 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. 2 warnings generated. Suppressed 2 warnings (2 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. 2 warnings generated. Suppressed 2 warnings (2 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. 2 warnings generated. Suppressed 2 warnings (2 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. 2 warnings generated. Suppressed 2 warnings (2 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/amba/bus.c:377:22: warning: Value stored to 'node' during its >> initialization is never read [clang-analyzer-deadcode.DeadStores] struct device_node *node = dev->dev.of_node; ^~~~ ~~~~~~~~~~~~~~~~ drivers/amba/bus.c:377:22: note: Value stored to 'node' during its initialization is never read struct device_node *node = dev->dev.of_node; ^~~~ ~~~~~~~~~~~~~~~~ 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. 2 warnings generated. Suppressed 2 warnings (2 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. 2 warnings generated. Suppressed 2 warnings (2 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. 2 warnings generated. Suppressed 2 warnings (2 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. 8 warnings generated. Suppressed 8 warnings (8 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/mtd/mtdcore.c:660:3: warning: Value stored to 'error' is never read [clang-analyzer-deadcode.DeadStores] error = 0; ^ ~ drivers/mtd/mtdcore.c:660:3: note: Value stored to 'error' is never read error = 0; ^ ~ 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. 2 warnings generated. Suppressed 2 warnings (2 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. 2 warnings generated. Suppressed 2 warnings (2 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. 8 warnings generated. Suppressed 8 warnings (8 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. drivers/mtd/devices/phram.c:231:2: warning: Call to function 'strcpy' is insecure as it does not provide bounding of the memory buffer. Replace unbounded copy functions with analogous functions that support length arguments such as 'strlcpy'. CWE-119 [clang-analyzer-security.insecureAPI.strcpy] strcpy(str, val); ^~~~~~ drivers/mtd/devices/phram.c:231:2: note: Call to function 'strcpy' is insecure as it does not provide bounding of the memory buffer. Replace unbounded copy functions with analogous functions that support length arguments such as 'strlcpy'. CWE-119 strcpy(str, val); ^~~~~~ drivers/mtd/devices/phram.c:315:2: warning: Call to function 'strcpy' is insecure as it does not provide bounding of the memory buffer. Replace unbounded copy functions with analogous functions that support length arguments such as 'strlcpy'. CWE-119 [clang-analyzer-security.insecureAPI.strcpy] strcpy(phram_paramline, val); ^~~~~~ drivers/mtd/devices/phram.c:315:2: note: Call to function 'strcpy' is insecure as it does not provide bounding of the memory buffer. Replace unbounded copy functions with analogous functions that support length arguments such as 'strlcpy'. CWE-119 strcpy(phram_paramline, val); ^~~~~~ Suppressed 2 warnings (2 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. 8 warnings generated. Suppressed 8 warnings (8 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. 2 warnings generated. Suppressed 2 warnings (2 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. 2 warnings generated. Suppressed 2 warnings (2 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. 2 warnings generated. Suppressed 2 warnings (2 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. 2 warnings generated. Suppressed 2 warnings (2 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. 2 warnings generated. Suppressed 2 warnings (2 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. 8 warnings generated. Suppressed 8 warnings (8 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. 2 warnings generated. Suppressed 2 warnings (2 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/usb/gadget/udc/udc-xilinx.c:632:3: warning: Value stored to 'bufferspace' is never read [clang-analyzer-deadcode.DeadStores] bufferspace -= count; ^ ~~~~~ drivers/usb/gadget/udc/udc-xilinx.c:632:3: note: Value stored to 'bufferspace' is never read bufferspace -= count; vim +/node +377 drivers/amba/bus.c ^1da177e4c3f41 arch/arm/common/amba.c Linus Torvalds 2005-04-16 374 854f695c3d4185 drivers/amba/bus.c Wang Kefeng 2021-08-23 375 static int of_amba_device_decode_irq(struct amba_device *dev) 854f695c3d4185 drivers/amba/bus.c Wang Kefeng 2021-08-23 376 { 854f695c3d4185 drivers/amba/bus.c Wang Kefeng 2021-08-23 @377 struct device_node *node = dev->dev.of_node; 854f695c3d4185 drivers/amba/bus.c Wang Kefeng 2021-08-23 378 int i, irq = 0; 854f695c3d4185 drivers/amba/bus.c Wang Kefeng 2021-08-23 379 854f695c3d4185 drivers/amba/bus.c Wang Kefeng 2021-08-23 380 if (IS_ENABLED(CONFIG_OF_IRQ) && node) { 854f695c3d4185 drivers/amba/bus.c Wang Kefeng 2021-08-23 381 /* Decode the IRQs and address ranges */ 854f695c3d4185 drivers/amba/bus.c Wang Kefeng 2021-08-23 382 for (i = 0; i < AMBA_NR_IRQS; i++) { 854f695c3d4185 drivers/amba/bus.c Wang Kefeng 2021-08-23 383 irq = of_irq_get(node, i); 854f695c3d4185 drivers/amba/bus.c Wang Kefeng 2021-08-23 384 if (irq < 0) { 854f695c3d4185 drivers/amba/bus.c Wang Kefeng 2021-08-23 385 if (irq == -EPROBE_DEFER) 854f695c3d4185 drivers/amba/bus.c Wang Kefeng 2021-08-23 386 return irq; 854f695c3d4185 drivers/amba/bus.c Wang Kefeng 2021-08-23 387 irq = 0; 854f695c3d4185 drivers/amba/bus.c Wang Kefeng 2021-08-23 388 } 854f695c3d4185 drivers/amba/bus.c Wang Kefeng 2021-08-23 389 854f695c3d4185 drivers/amba/bus.c Wang Kefeng 2021-08-23 390 dev->irq[i] = irq; 854f695c3d4185 drivers/amba/bus.c Wang Kefeng 2021-08-23 391 } 854f695c3d4185 drivers/amba/bus.c Wang Kefeng 2021-08-23 392 } 854f695c3d4185 drivers/amba/bus.c Wang Kefeng 2021-08-23 393 854f695c3d4185 drivers/amba/bus.c Wang Kefeng 2021-08-23 394 return 0; 854f695c3d4185 drivers/amba/bus.c Wang Kefeng 2021-08-23 395 } 854f695c3d4185 drivers/amba/bus.c Wang Kefeng 2021-08-23 396 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/[email protected] _______________________________________________ kbuild mailing list -- [email protected] To unsubscribe send an email to [email protected]
