Hi Masahiro, I love your patch! Perhaps something to improve:
[auto build test WARNING on linus/master] [also build test WARNING on v4.20-rc2 next-20181116] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system] url: https://github.com/0day-ci/linux/commits/Masahiro-Yamada/build_bug-h-remove-negative-array-fallback-for-BUILD_BUG_ON/20181116-190414 config: x86_64-allmodconfig (attached as .config) compiler: gcc-7 (Debian 7.3.0-1) 7.3.0 reproduce: # save the attached .config to linux build tree make ARCH=x86_64 All warnings (new ones prefixed by >>): drivers/crypto/chelsio/chcr_algo.c:241:29: warning: cast to restricted __be32 drivers/crypto/chelsio/chcr_algo.c:241:29: warning: cast to restricted __be32 drivers/crypto/chelsio/chcr_algo.c:241:29: warning: cast to restricted __be32 drivers/crypto/chelsio/chcr_algo.c:241:29: warning: cast to restricted __be32 drivers/crypto/chelsio/chcr_algo.c:241:29: warning: cast to restricted __be32 drivers/crypto/chelsio/chcr_algo.c:241:29: warning: cast to restricted __be32 drivers/crypto/chelsio/chcr_algo.c:260:39: warning: incorrect type in assignment (different base types) drivers/crypto/chelsio/chcr_algo.c:260:39: expected unsigned int [unsigned] [usertype] <noident> drivers/crypto/chelsio/chcr_algo.c:260:39: got restricted __be32 [usertype] <noident> drivers/crypto/chelsio/chcr_algo.c:2301:21: warning: restricted __be32 degrades to integer drivers/crypto/chelsio/chcr_algo.c:2301:21: warning: cast to restricted __be32 drivers/crypto/chelsio/chcr_algo.c:2301:21: warning: restricted __be32 degrades to integer drivers/crypto/chelsio/chcr_algo.c:2301:21: warning: cast to restricted __be32 drivers/crypto/chelsio/chcr_algo.c:2301:21: warning: restricted __be32 degrades to integer drivers/crypto/chelsio/chcr_algo.c:2301:21: warning: cast to restricted __be32 drivers/crypto/chelsio/chcr_algo.c:2301:21: warning: restricted __be32 degrades to integer drivers/crypto/chelsio/chcr_algo.c:2301:21: warning: cast to restricted __be32 drivers/crypto/chelsio/chcr_algo.c:2301:21: warning: restricted __be32 degrades to integer drivers/crypto/chelsio/chcr_algo.c:2301:21: warning: cast to restricted __be32 drivers/crypto/chelsio/chcr_algo.c:2301:21: warning: restricted __be32 degrades to integer drivers/crypto/chelsio/chcr_algo.c:2301:21: warning: cast to restricted __be32 drivers/crypto/chelsio/chcr_algo.c:2747:65: warning: incorrect type in assignment (different base types) drivers/crypto/chelsio/chcr_algo.c:2747:65: expected unsigned short [unsigned] [short] <noident> drivers/crypto/chelsio/chcr_algo.c:2747:65: got restricted __be16 [usertype] <noident> drivers/crypto/chelsio/chcr_algo.c:3014:46: warning: incorrect type in assignment (different base types) drivers/crypto/chelsio/chcr_algo.c:3014:46: expected unsigned int [unsigned] <noident> drivers/crypto/chelsio/chcr_algo.c:3014:46: got restricted __be32 [usertype] <noident> >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) -- drivers/crypto/mediatek/mtk-sha.c:251:17: warning: incorrect type in assignment (different base types) drivers/crypto/mediatek/mtk-sha.c:251:17: expected unsigned long long [unsigned] [long] [long long] <noident> drivers/crypto/mediatek/mtk-sha.c:251:17: got restricted __be64 [usertype] <noident> drivers/crypto/mediatek/mtk-sha.c:252:17: warning: incorrect type in assignment (different base types) drivers/crypto/mediatek/mtk-sha.c:252:17: expected unsigned long long [unsigned] [long] [long long] <noident> drivers/crypto/mediatek/mtk-sha.c:252:17: got restricted __be64 [usertype] <noident> include/linux/slab.h:332:43: warning: dubious: x & !y >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) -- include/linux/slab.h:332:43: warning: dubious: x & !y include/linux/slab.h:332:43: warning: dubious: x & !y include/linux/slab.h:332:43: warning: dubious: x & !y include/linux/slab.h:332:43: warning: dubious: x & !y >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) -- >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) -- include/linux/slab.h:332:43: warning: dubious: x & !y include/linux/slab.h:332:43: warning: dubious: x & !y include/linux/slab.h:332:43: warning: dubious: x & !y include/linux/slab.h:332:43: warning: dubious: x & !y include/linux/slab.h:332:43: warning: dubious: x & !y include/linux/slab.h:332:43: warning: dubious: x & !y include/linux/slab.h:332:43: warning: dubious: x & !y include/linux/slab.h:332:43: warning: dubious: x & !y include/linux/slab.h:332:43: warning: dubious: x & !y >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) -- >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) -- include/linux/slab.h:332:43: warning: dubious: x & !y include/linux/slab.h:332:43: warning: dubious: x & !y >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) -- >> sound/hda/ext/hdac_ext_bus.c:203:36: warning: unknown expression (4 0) >> sound/hda/ext/hdac_ext_bus.c:203:36: warning: unknown expression (4 0) >> sound/hda/ext/hdac_ext_bus.c:203:36: warning: unknown expression (4 0) >> sound/hda/ext/hdac_ext_bus.c:203:36: warning: unknown expression (4 0) >> sound/hda/ext/hdac_ext_bus.c:203:36: warning: unknown expression (4 0) >> sound/hda/ext/hdac_ext_bus.c:203:36: warning: unknown expression (4 0) >> sound/hda/ext/hdac_ext_bus.c:203:36: warning: unknown expression (4 0) >> sound/hda/ext/hdac_ext_bus.c:203:36: warning: unknown expression (4 0) >> sound/hda/ext/hdac_ext_bus.c:203:36: warning: unknown expression (4 0) >> sound/hda/ext/hdac_ext_bus.c:203:36: warning: unknown expression (4 0) >> sound/hda/ext/hdac_ext_bus.c:203:36: warning: unknown expression (4 0) >> sound/hda/ext/hdac_ext_bus.c:203:36: warning: unknown expression (4 0) -- include/linux/slab.h:332:43: warning: dubious: x & !y drivers/infiniband/hw/hns/hns_roce_ah.c:72:24: warning: incorrect type in assignment (different base types) drivers/infiniband/hw/hns/hns_roce_ah.c:72:24: expected restricted __le32 [usertype] port_pd drivers/infiniband/hw/hns/hns_roce_ah.c:72:24: got restricted __be32 [usertype] <noident> >> drivers/infiniband/hw/hns/hns_roce_device.h:869:16: warning: unknown >> expression (4 0) >> drivers/infiniband/hw/hns/hns_roce_device.h:869:16: warning: unknown >> expression (4 0) >> drivers/infiniband/hw/hns/hns_roce_device.h:869:16: warning: unknown >> expression (4 0) >> drivers/infiniband/hw/hns/hns_roce_device.h:869:16: warning: unknown >> expression (4 0) >> drivers/infiniband/hw/hns/hns_roce_device.h:869:16: warning: unknown >> expression (4 0) >> drivers/infiniband/hw/hns/hns_roce_device.h:869:16: warning: unknown >> expression (4 0) >> drivers/infiniband/hw/hns/hns_roce_device.h:869:16: warning: unknown >> expression (4 0) >> drivers/infiniband/hw/hns/hns_roce_device.h:869:16: warning: unknown >> expression (4 0) >> drivers/infiniband/hw/hns/hns_roce_device.h:869:16: warning: unknown >> expression (4 0) >> drivers/infiniband/hw/hns/hns_roce_device.h:869:16: warning: unknown >> expression (4 0) >> drivers/infiniband/hw/hns/hns_roce_device.h:869:16: warning: unknown >> expression (4 0) >> drivers/infiniband/hw/hns/hns_roce_device.h:869:16: warning: unknown >> expression (4 0) >> drivers/infiniband/hw/hns/hns_roce_device.h:869:16: warning: unknown >> expression (4 0) >> drivers/infiniband/hw/hns/hns_roce_device.h:869:16: warning: unknown >> expression (4 0) >> drivers/infiniband/hw/hns/hns_roce_device.h:869:16: warning: unknown >> expression (4 0) >> drivers/infiniband/hw/hns/hns_roce_device.h:869:16: warning: unknown >> expression (4 0) >> drivers/infiniband/hw/hns/hns_roce_device.h:869:16: warning: unknown >> expression (4 0) >> drivers/infiniband/hw/hns/hns_roce_device.h:869:16: warning: unknown >> expression (4 0) >> drivers/infiniband/hw/hns/hns_roce_device.h:869:16: warning: unknown >> expression (4 0) >> drivers/infiniband/hw/hns/hns_roce_device.h:869:16: warning: unknown >> expression (4 0) -- include/linux/slab.h:332:43: warning: dubious: x & !y include/linux/slab.h:332:43: warning: dubious: x & !y include/linux/slab.h:332:43: warning: dubious: x & !y >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) -- >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) >> include/crypto/hash.h:767:16: warning: unknown expression (4 0) .. vim +767 include/crypto/hash.h 974959863 Herbert Xu 2009-02-03 764 7b5a080b3 Herbert Xu 2008-08-31 765 static inline struct shash_alg *__crypto_shash_alg(struct crypto_alg *alg) 7b5a080b3 Herbert Xu 2008-08-31 766 { 7b5a080b3 Herbert Xu 2008-08-31 @767 return container_of(alg, struct shash_alg, base); 7b5a080b3 Herbert Xu 2008-08-31 768 } 7b5a080b3 Herbert Xu 2008-08-31 769 :::::: The code at line 767 was first introduced by commit :::::: 7b5a080b3c46f0cac71c0d0262634c6517d4ee4f crypto: hash - Add shash interface :::::: TO: Herbert Xu <[email protected]> :::::: CC: Herbert Xu <[email protected]> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
.config.gz
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