Buildresult: linus/arm64-allmodconfig/arm64-gcc8 built on Jul 18 2021, 03:11

kisskb

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Status:	Failed
Date/Time:	Jul 18 2021, 03:11
Duration:	0:26:30.103323
Builder:	ka3
Revision:	Revert "Makefile: Enable -Wimplicit-fallthrough for Clang" (`d936eb23874433caa3e3d841cfa16f5434b85dcf)`
Target:	linus/arm64-allmodconfig/arm64-gcc8
Branch:	linus
Compiler:	arm64-gcc8 (aarch64-linux-gcc (GCC) 8.1.0 / GNU ld (GNU Binutils) 2.30)
Config:	allmodconfig (download)
Log:	Download original Possible errors include/linux/compiler_types.h:328:38: error: call to '__compiletime_assert_1857' declared with attribute error: FIELD_PREP: value too large for the field include/linux/compiler_types.h:328:38: error: call to '__compiletime_assert_1864' declared with attribute error: FIELD_PREP: value too large for the field make[5]: * [scripts/Makefile.build:271: drivers/infiniband/hw/hns/hns_roce_hw_v2.o] Error 1 make[4]: * [scripts/Makefile.build:514: drivers/infiniband/hw/hns] Error 2 make[3]: * [scripts/Makefile.build:514: drivers/infiniband/hw] Error 2 make[2]: * [scripts/Makefile.build:514: drivers/infiniband] Error 2 make[1]: * [Makefile:1841: drivers] Error 2 make: * [Makefile:220: __sub-make] Error 2 Possible warnings (4) kernel/trace/trace_osnoise.c:1461:8: warning: 'main' is usually a function [-Wmain] lib/test_scanf.c:530:1: warning: the frame size of 2512 bytes is larger than 2048 bytes [-Wframe-larger-than=] lib/test_scanf.c:488:1: warning: the frame size of 3008 bytes is larger than 2048 bytes [-Wframe-larger-than=] lib/test_scanf.c:437:1: warning: the frame size of 2512 bytes is larger than 2048 bytes [-Wframe-larger-than=] Full Log # git rev-parse -q --verify d936eb23874433caa3e3d841cfa16f5434b85dcf^{commit} d936eb23874433caa3e3d841cfa16f5434b85dcf already have revision, skipping fetch # git checkout -q -f -B kisskb d936eb23874433caa3e3d841cfa16f5434b85dcf # git clean -qxdf # < git log -1 # commit d936eb23874433caa3e3d841cfa16f5434b85dcf # Author: Linus Torvalds <torvalds@linux-foundation.org> # Date: Thu Jul 15 18:05:31 2021 -0700 # # Revert "Makefile: Enable -Wimplicit-fallthrough for Clang" # # This reverts commit b7eb335e26a9c7f258c96b3962c283c379d3ede0. # # It turns out that the problem with the clang -Wimplicit-fallthrough # warning is not about the kernel source code, but about clang itself, and # that the warning is unusable until clang fixes its broken ways. # # In particular, when you enable this warning for clang, you not only get # warnings about implicit fallthroughs. You also get this: # # warning: fallthrough annotation in unreachable code [-Wimplicit-fallthrough] # # which is completely broken becasue it # # (a) doesn't even tell you where the problem is (seriously: no line # numbers, no filename, no nothing). # # (b) is fundamentally broken anyway, because there are perfectly valid # reasons to have a fallthrough statement even if it turns out that # it can perhaps not be reached. # # In the kernel, an example of that second case is code in the scheduler: # # switch (state) { # case cpuset: # if (IS_ENABLED(CONFIG_CPUSETS)) { # cpuset_cpus_allowed_fallback(p); # state = possible; # break; # } # fallthrough; # case possible: # # where if CONFIG_CPUSETS is enabled you actually never hit the # fallthrough case at all. But that in no way makes the fallthrough # wrong. # # So the warning is completely broken, and enabling it for clang is a very # bad idea. # # In the meantime, we can keep the gcc option enabled, and make the gcc # build use # # -Wimplicit-fallthrough=5 # # which means that we will at least continue to require a proper # fallthrough statement, and that gcc won't silently accept the magic # comment versions. Because gcc does this all correctly, and while the odd # "=5" part is kind of obscure, it's documented in [1]: # # "-Wimplicit-fallthrough=5 doesn’t recognize any comments as # fallthrough comments, only attributes disable the warning" # # so if clang ever fixes its bad behavior we can try enabling it there again. # # Link: https://gcc.gnu.org/onlinedocs/gcc/Warning-Options.html [1] # Cc: Kees Cook <keescook@chromium.org> # Cc: Gustavo A. R. Silva <gustavoars@kernel.org> # Cc: Nathan Chancellor <nathan@kernel.org> # Cc: Nick Desaulniers <ndesaulniers@google.com> # Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> # < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux-ld --version # < git log --format=%s --max-count=1 d936eb23874433caa3e3d841cfa16f5434b85dcf # < make -s -j 80 ARCH=arm64 O=/kisskb/build/linus_arm64-allmodconfig_arm64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux- allmodconfig # < make -s -j 80 ARCH=arm64 O=/kisskb/build/linus_arm64-allmodconfig_arm64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux- help # make -s -j 80 ARCH=arm64 O=/kisskb/build/linus_arm64-allmodconfig_arm64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux- olddefconfig # make -s -j 80 ARCH=arm64 O=/kisskb/build/linus_arm64-allmodconfig_arm64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux- /kisskb/src/kernel/trace/trace_osnoise.c: In function 'start_kthread': /kisskb/src/kernel/trace/trace_osnoise.c:1461:8: warning: 'main' is usually a function [-Wmain] void main = osnoise_main; ^~~~ /kisskb/src/lib/test_scanf.c: In function 'numbers_list_field_width_val_width': /kisskb/src/lib/test_scanf.c:530:1: warning: the frame size of 2512 bytes is larger than 2048 bytes [-Wframe-larger-than=] } ^ /kisskb/src/lib/test_scanf.c: In function 'numbers_list_field_width_typemax': /kisskb/src/lib/test_scanf.c:488:1: warning: the frame size of 3008 bytes is larger than 2048 bytes [-Wframe-larger-than=] } ^ /kisskb/src/lib/test_scanf.c: In function 'numbers_list': /kisskb/src/lib/test_scanf.c:437:1: warning: the frame size of 2512 bytes is larger than 2048 bytes [-Wframe-larger-than=] } ^ In file included from /kisskb/src/include/linux/byteorder/little_endian.h:5, from /kisskb/src/arch/arm64/include/uapi/asm/byteorder.h:23, from /kisskb/src/include/asm-generic/bitops/le.h:7, from /kisskb/src/arch/arm64/include/asm/bitops.h:29, from /kisskb/src/include/linux/bitops.h:32, from /kisskb/src/include/linux/of.h:15, from /kisskb/src/include/linux/irqdomain.h:35, from /kisskb/src/include/linux/acpi.h:13, from /kisskb/src/drivers/infiniband/hw/hns/hns_roce_hw_v2.c:33: In function 'modify_qp_init_to_rtr', inlined from 'hns_roce_v2_set_abs_fields' at /kisskb/src/drivers/infiniband/hw/hns/hns_roce_hw_v2.c:4798:9, inlined from 'hns_roce_v2_modify_qp' at /kisskb/src/drivers/infiniband/hw/hns/hns_roce_hw_v2.c:5001:8: /kisskb/src/include/linux/compiler_types.h:328:38: error: call to '__compiletime_assert_1857' declared with attribute error: FIELD_PREP: value too large for the field _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) ^ /kisskb/src/include/uapi/linux/byteorder/little_endian.h:33:51: note: in definition of macro '__cpu_to_le32' #define __cpu_to_le32(x) ((__force __le32)(__u32)(x)) ^ /kisskb/src/include/linux/compiler_types.h:316:2: note: in expansion of macro '__compiletime_assert' __compiletime_assert(condition, msg, prefix, suffix) ^~~~~~~~~~~~~~~~~~~~ /kisskb/src/include/linux/compiler_types.h:328:2: note: in expansion of macro '_compiletime_assert' _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) ^~~~~~~~~~~~~~~~~~~ /kisskb/src/include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert' #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg) ^~~~~~~~~~~~~~~~~~ /kisskb/src/include/linux/bitfield.h:49:3: note: in expansion of macro 'BUILD_BUG_ON_MSG' BUILD_BUG_ON_MSG(__builtin_constant_p(_val) ? \ ^~~~~~~~~~~~~~~~ /kisskb/src/include/linux/bitfield.h:94:3: note: in expansion of macro '__BF_FIELD_CHECK' __BF_FIELD_CHECK(_mask, 0ULL, _val, "FIELD_PREP: "); \ ^~~~~~~~~~~~~~~~ /kisskb/src/drivers/infiniband/hw/hns/hns_roce_common.h:91:52: note: in expansion of macro 'FIELD_PREP' ((__le32 )ptr + (field_h) / 32) \|= cpu_to_le32(FIELD_PREP( \ ^~~~~~~~~~ /kisskb/src/drivers/infiniband/hw/hns/hns_roce_common.h:95:39: note: in expansion of macro '_hr_reg_write' #define hr_reg_write(ptr, field, val) _hr_reg_write(ptr, field, val) ^~~~~~~~~~~~~ /kisskb/src/drivers/infiniband/hw/hns/hns_roce_hw_v2.c:4422:2: note: in expansion of macro 'hr_reg_write' hr_reg_write(context, QPC_LP_PKTN_INI, lp_pktn_ini); ^~~~~~~~~~~~ /kisskb/src/include/linux/compiler_types.h:328:38: error: call to '__compiletime_assert_1864' declared with attribute error: FIELD_PREP: value too large for the field _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) ^ /kisskb/src/include/uapi/linux/byteorder/little_endian.h:33:51: note: in definition of macro '__cpu_to_le32' #define __cpu_to_le32(x) ((__force __le32)(__u32)(x)) ^ /kisskb/src/include/linux/compiler_types.h:316:2: note: in expansion of macro '__compiletime_assert' __compiletime_assert(condition, msg, prefix, suffix) ^~~~~~~~~~~~~~~~~~~~ /kisskb/src/include/linux/compiler_types.h:328:2: note: in expansion of macro '_compiletime_assert' _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__) ^~~~~~~~~~~~~~~~~~~ /kisskb/src/include/linux/build_bug.h:39:37: note: in expansion of macro 'compiletime_assert' #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg) ^~~~~~~~~~~~~~~~~~ /kisskb/src/include/linux/bitfield.h:49:3: note: in expansion of macro 'BUILD_BUG_ON_MSG' BUILD_BUG_ON_MSG(__builtin_constant_p(_val) ? \ ^~~~~~~~~~~~~~~~ /kisskb/src/include/linux/bitfield.h:94:3: note: in expansion of macro '__BF_FIELD_CHECK' __BF_FIELD_CHECK(_mask, 0ULL, _val, "FIELD_PREP: "); \ ^~~~~~~~~~~~~~~~ /kisskb/src/drivers/infiniband/hw/hns/hns_roce_common.h:91:52: note: in expansion of macro 'FIELD_PREP' ((__le32 )ptr + (field_h) / 32) \|= cpu_to_le32(FIELD_PREP( \ ^~~~~~~~~~ /kisskb/src/drivers/infiniband/hw/hns/hns_roce_common.h:95:39: note: in expansion of macro '_hr_reg_write' #define hr_reg_write(ptr, field, val) _hr_reg_write(ptr, field, val) ^~~~~~~~~~~~~ /kisskb/src/drivers/infiniband/hw/hns/hns_roce_hw_v2.c:4426:2: note: in expansion of macro 'hr_reg_write' hr_reg_write(context, QPC_ACK_REQ_FREQ, lp_pktn_ini); ^~~~~~~~~~~~ make[5]: [/kisskb/src/scripts/Makefile.build:271: drivers/infiniband/hw/hns/hns_roce_hw_v2.o] Error 1 make[4]: * [/kisskb/src/scripts/Makefile.build:514: drivers/infiniband/hw/hns] Error 2 make[4]: * Waiting for unfinished jobs.... make[3]: * [/kisskb/src/scripts/Makefile.build:514: drivers/infiniband/hw] Error 2 make[3]: * Waiting for unfinished jobs.... make[2]: * [/kisskb/src/scripts/Makefile.build:514: drivers/infiniband] Error 2 make[2]: * Waiting for unfinished jobs.... make[1]: * [/kisskb/src/Makefile:1841: drivers] Error 2 make: *** [Makefile:220: __sub-make] Error 2 Command 'make -s -j 80 ARCH=arm64 O=/kisskb/build/linus_arm64-allmodconfig_arm64-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/aarch64-linux/bin/aarch64-linux- ' returned non-zero exit status 2 # rm -rf /kisskb/build/linus_arm64-allmodconfig_arm64-gcc8 # Build took: 0:26:30.103323

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