Buildresult: gustavoars/ia64-defconfig/ia64-gcc4.9 built on Feb 12 2020, 05:39

kisskb

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Status:	OK
Date/Time:	Feb 12 2020, 05:39
Duration:	0:02:30.450505
Builder:	blade46
Revision:	treewide: Replace zero-length arrays with flexible array member (`56ca73e491a54bd7be10e398593977df9ee4d4ff)`
Target:	gustavoars/ia64-defconfig/ia64-gcc4.9
Branch:	gustavoars
Compiler:	ia64-gcc4.9 (ia64-linux-gcc (GCC) 4.9.4 / GNU ld (GNU Binutils) 2.29.1.20170915)
Config:	defconfig (download)
Log:	Download original Possible warnings (5) <stdin>:1511:2: warning: #warning syscall clone3 not implemented [-Wcpp] arch/ia64/include/uapi/asm/cmpxchg.h:57:2: warning: value computed is not used [-Wunused-value] arch/ia64/include/uapi/asm/cmpxchg.h:57:2: warning: value computed is not used [-Wunused-value] drivers/gpu/drm/drm_dp_mst_topology.c:5399:9: warning: missing braces around initializer [-Wmissing-braces] drivers/gpu/drm/drm_dp_mst_topology.c:5399:9: warning: (near initialization for 'desc.ident') [-Wmissing-braces] Full Log # git rev-parse -q --verify 56ca73e491a54bd7be10e398593977df9ee4d4ff^{commit} 56ca73e491a54bd7be10e398593977df9ee4d4ff already have revision, skipping fetch # git checkout -q -f -B kisskb 56ca73e491a54bd7be10e398593977df9ee4d4ff # git clean -qxdf # < git log -1 # commit 56ca73e491a54bd7be10e398593977df9ee4d4ff # Author: Gustavo A. R. Silva <gustavo@embeddedor.com> # Date: Tue Feb 11 10:00:37 2020 -0600 # # treewide: Replace zero-length arrays with flexible array member # # The current codebase makes use of the zero-length array language # extension to the C90 standard, but the preferred mechanism to declare # variable-length types such as these ones is a flexible array member[1][2], # introduced in C99: # # struct foo { # int stuff; # struct boo array[]; # }; # # By making use of the mechanism above, we will get a compiler warning # in case the flexible array does not occur last in the structure, which # will help us prevent some kind of undefined behavior bugs from being # unadvertenly introduced[3] to the codebase from now on. # # All these instances of code were found with the help of the following # Coccinelle script: # # @@ # identifier S, member, array; # type T1, T2; # @@ # # struct S { # ... # T1 member; # T2 array[ # - 0 # ]; # }; # # [1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html # [2] https://github.com/KSPP/linux/issues/21 # [3] commit 76497732932f ("cxgb3/l2t: Fix undefined behaviour") # # Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> # < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/ia64-linux/bin/ia64-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/ia64-linux/bin/ia64-linux-ld --version # < git log --format=%s --max-count=1 56ca73e491a54bd7be10e398593977df9ee4d4ff # < make -s -j 32 ARCH=ia64 O=/kisskb/build/gustavoars_ia64-defconfig_ia64-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/ia64-linux/bin/ia64-linux- defconfig # make -s -j 32 ARCH=ia64 O=/kisskb/build/gustavoars_ia64-defconfig_ia64-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/ia64-linux/bin/ia64-linux- <stdin>:1511:2: warning: #warning syscall clone3 not implemented [-Wcpp] In file included from /kisskb/src/arch/ia64/include/uapi/asm/intrinsics.h:22:0, from /kisskb/src/arch/ia64/include/asm/intrinsics.h:11, from /kisskb/src/arch/ia64/include/asm/bitops.h:19, from /kisskb/src/include/linux/bitops.h:29, from /kisskb/src/include/linux/kernel.h:12, from /kisskb/src/include/linux/list.h:9, from /kisskb/src/include/linux/preempt.h:11, from /kisskb/src/include/linux/spinlock.h:51, from /kisskb/src/include/linux/seqlock.h:36, from /kisskb/src/include/linux/time.h:6, from /kisskb/src/fs/nfs/read.c:11: /kisskb/src/fs/nfs/read.c: In function 'nfs_read_completion': /kisskb/src/arch/ia64/include/uapi/asm/cmpxchg.h:57:2: warning: value computed is not used [-Wunused-value] ((__typeof__((ptr))) __xchg((unsigned long) (x), (ptr), sizeof((ptr)))) ^ /kisskb/src/fs/nfs/read.c:196:5: note: in expansion of macro 'xchg' xchg(&nfs_req_openctx(req)->error, error); ^ /kisskb/src/fs/nfs/read.c: In function 'nfs_readpage': /kisskb/src/arch/ia64/include/uapi/asm/cmpxchg.h:57:2: warning: value computed is not used [-Wunused-value] ((__typeof__((ptr))) __xchg((unsigned long) (x), (ptr), sizeof((ptr)))) ^ /kisskb/src/fs/nfs/read.c:353:2: note: in expansion of macro 'xchg' xchg(&ctx->error, 0); ^ /kisskb/src/drivers/gpu/drm/drm_dp_mst_topology.c: In function 'drm_dp_mst_dsc_aux_for_port': /kisskb/src/drivers/gpu/drm/drm_dp_mst_topology.c:5399:9: warning: missing braces around initializer [-Wmissing-braces] struct drm_dp_desc desc = { 0 }; ^ /kisskb/src/drivers/gpu/drm/drm_dp_mst_topology.c:5399:9: warning: (near initialization for 'desc.ident') [-Wmissing-braces] No errors detected in 21891 functions. Completed OK # rm -rf /kisskb/build/gustavoars_ia64-defconfig_ia64-gcc4.9 # Build took: 0:02:30.450505

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