Buildresult: gustavoars/nds32-allmodconfig/nds32le-gcc8 built on Apr 23 2020, 04:21

kisskb

Revisions | Branches | Compilers | Configs | Build Results | Build Failures |

Status:	OK
Date/Time:	Apr 23 2020, 04:21
Duration:	0:17:18.116900
Builder:	blade4b
Revision:	treewide: Replace zero-length array with flexible-array member (`d783301058f3d3605f9ad34f0192692ef572d663)`
Target:	gustavoars/nds32-allmodconfig/nds32le-gcc8
Branch:	gustavoars
Compiler:	nds32le-gcc8 (nds32le-linux-gcc (GCC) 8.1.0 / GNU ld (GNU Binutils) 2.30.51.20180307)
Config:	allmodconfig (download)
Log:	Download original Possible warnings (33) <stdin>:1511:2: warning: #warning syscall clone3 not implemented [-Wcpp] drivers/net/phy/mdio-cavium.h:114:37: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] drivers/net/phy/mdio-cavium.h:113:48: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] drivers/net/phy/mdio-cavium.h:113:48: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] drivers/net/phy/mdio-cavium.h:113:48: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] drivers/net/phy/mdio-cavium.h:114:37: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] drivers/net/phy/mdio-cavium.h:113:48: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] drivers/net/phy/mdio-cavium.h:114:37: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] drivers/net/phy/mdio-cavium.h:113:48: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] drivers/net/phy/mdio-cavium.h:113:48: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] drivers/net/phy/mdio-cavium.h:114:37: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] drivers/net/phy/mdio-octeon.c:48:3: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] drivers/net/phy/mdio-cavium.h:113:48: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] drivers/net/phy/mdio-cavium.h:113:48: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] drivers/net/phy/mdio-cavium.h:113:48: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] drivers/input/joystick/analog.c:160:2: warning: #warning Precise timer not defined for this architecture. [-Wcpp] #warning Precise timer not defined for this architecture. WARNING: modpost: EXPORT symbol "clear_page" [vmlinux] version generation failed, symbol will not be versioned. WARNING: modpost: EXPORT symbol "copy_page" [vmlinux] version generation failed, symbol will not be versioned. WARNING: modpost: "copy_page" [drivers/md/dm-integrity.ko] has no CRC! WARNING: modpost: "clear_page" [drivers/md/dm-integrity.ko] has no CRC! WARNING: modpost: "clear_page" [drivers/md/raid456.ko] has no CRC! WARNING: modpost: "clear_page" [drivers/scsi/sd_mod.ko] has no CRC! WARNING: modpost: "copy_page" [drivers/block/drbd/drbd.ko] has no CRC! WARNING: modpost: "clear_page" [fs/gfs2/gfs2.ko] has no CRC! WARNING: modpost: "copy_page" [fs/btrfs/btrfs.ko] has no CRC! WARNING: modpost: "clear_page" [fs/btrfs/btrfs.ko] has no CRC! WARNING: modpost: "clear_page" [fs/ocfs2/dlm/ocfs2_dlm.ko] has no CRC! WARNING: modpost: "copy_page" [fs/cachefiles/cachefiles.ko] has no CRC! WARNING: modpost: "copy_page" [fs/nilfs2/nilfs2.ko] has no CRC! WARNING: modpost: "copy_page" [fs/fuse/fuse.ko] has no CRC! WARNING: modpost: "clear_page" [fs/fuse/fuse.ko] has no CRC! WARNING: modpost: "clear_page" [fs/ntfs/ntfs.ko] has no CRC! Full Log # git rev-parse -q --verify d783301058f3d3605f9ad34f0192692ef572d663^{commit} d783301058f3d3605f9ad34f0192692ef572d663 already have revision, skipping fetch # git checkout -q -f -B kisskb d783301058f3d3605f9ad34f0192692ef572d663 # git clean -qxdf # < git log -1 # commit d783301058f3d3605f9ad34f0192692ef572d663 # Author: Gustavo A. R. Silva <gustavo@embeddedor.com> # Date: Tue Apr 21 16:19:18 2020 -0500 # # treewide: Replace zero-length array 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 # inadvertently introduced[3] to the codebase from now on. # # Also, notice that, dynamic memory allocations won't be affected by # this change: # # "Flexible array members have incomplete type, and so the sizeof operator # may not be applied. As a quirk of the original implementation of # zero-length arrays, sizeof evaluates to zero."[1] # # sizeof(flexible-array-member) triggers a warning because flexible array # members have incomplete type[1]. There are some instances of code in # which the sizeof operator is being incorrectly/erroneously applied to # zero-length arrays and the result is zero. Such instances may be hiding # some bugs. So, this work (flexible-array member conversions) will also # help to get completely rid of those sorts of issues. # # Notice that, currently, more than 250 of these patches have already # been merged into mainline during the last merge window, including # 5.7-rc2. So, in order to make better use of everyone's time, I'm # planning to add this treewide patch to my -next tree and then send a # pull request to Linus for 5.7-rc3 or -rc4, after getting some acks # and/or reviews. # # This treewide patch has been successfully built (on top of v5.7-rc1) for # multiple architectures (arm, arm64, sparc, powerpc, ia64, s390, i386, # nios2, c6x, xtensa, openrisc, mips, parisc, x86_64, riscv, sh, sparc64) # and 82 different configurations with the help of the 0-day CI guys[5]. # # This issue was found with the help of Coccinelle. # # [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") # [4] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/log/?qt=grep&q=replace+zero-length+array+with+flexible-array+member # [5] https://github.com/GustavoARSilva/linux-hardening/blob/master/cii/kernel-ci/kspp-fam0-20200420.md # # Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> # < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/nds32le-linux/bin/nds32le-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/nds32le-linux/bin/nds32le-linux-ld --version # < git log --format=%s --max-count=1 d783301058f3d3605f9ad34f0192692ef572d663 # < make -s -j 24 ARCH=nds32 O=/kisskb/build/gustavoars_nds32-allmodconfig_nds32le-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/nds32le-linux/bin/nds32le-linux- allmodconfig # < make -s -j 24 ARCH=nds32 O=/kisskb/build/gustavoars_nds32-allmodconfig_nds32le-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/nds32le-linux/bin/nds32le-linux- help # make -s -j 24 ARCH=nds32 O=/kisskb/build/gustavoars_nds32-allmodconfig_nds32le-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/nds32le-linux/bin/nds32le-linux- olddefconfig # make -s -j 24 ARCH=nds32 O=/kisskb/build/gustavoars_nds32-allmodconfig_nds32le-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/nds32le-linux/bin/nds32le-linux- <stdin>:1511:2: warning: #warning syscall clone3 not implemented [-Wcpp] In file included from /kisskb/src/drivers/net/phy/mdio-cavium.c:11: /kisskb/src/drivers/net/phy/mdio-cavium.c: In function 'cavium_mdiobus_set_mode': /kisskb/src/drivers/net/phy/mdio-cavium.h:114:37: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] #define oct_mdio_readq(addr) readq((void )addr) ^ /kisskb/src/drivers/net/phy/mdio-cavium.c:21:16: note: in expansion of macro 'oct_mdio_readq' smi_clk.u64 = oct_mdio_readq(p->register_base + SMI_CLK); ^~~~~~~~~~~~~~ /kisskb/src/drivers/net/phy/mdio-cavium.h:113:48: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] #define oct_mdio_writeq(val, addr) writeq(val, (void )addr) ^ /kisskb/src/drivers/net/phy/mdio-cavium.c:24:2: note: in expansion of macro 'oct_mdio_writeq' oct_mdio_writeq(smi_clk.u64, p->register_base + SMI_CLK); ^~~~~~~~~~~~~~~ /kisskb/src/drivers/net/phy/mdio-cavium.c: In function 'cavium_mdiobus_c45_addr': /kisskb/src/drivers/net/phy/mdio-cavium.h:113:48: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] #define oct_mdio_writeq(val, addr) writeq(val, (void )addr) ^ /kisskb/src/drivers/net/phy/mdio-cavium.c:39:2: note: in expansion of macro 'oct_mdio_writeq' oct_mdio_writeq(smi_wr.u64, p->register_base + SMI_WR_DAT); ^~~~~~~~~~~~~~~ /kisskb/src/drivers/net/phy/mdio-cavium.h:113:48: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] #define oct_mdio_writeq(val, addr) writeq(val, (void )addr) ^ /kisskb/src/drivers/net/phy/mdio-cavium.c:47:2: note: in expansion of macro 'oct_mdio_writeq' oct_mdio_writeq(smi_cmd.u64, p->register_base + SMI_CMD); ^~~~~~~~~~~~~~~ /kisskb/src/drivers/net/phy/mdio-cavium.h:114:37: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] #define oct_mdio_readq(addr) readq((void )addr) ^ /kisskb/src/drivers/net/phy/mdio-cavium.c:54:16: note: in expansion of macro 'oct_mdio_readq' smi_wr.u64 = oct_mdio_readq(p->register_base + SMI_WR_DAT); ^~~~~~~~~~~~~~ /kisskb/src/drivers/net/phy/mdio-cavium.c: In function 'cavium_mdiobus_read': /kisskb/src/drivers/net/phy/mdio-cavium.h:113:48: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] #define oct_mdio_writeq(val, addr) writeq(val, (void )addr) ^ /kisskb/src/drivers/net/phy/mdio-cavium.c:86:2: note: in expansion of macro 'oct_mdio_writeq' oct_mdio_writeq(smi_cmd.u64, p->register_base + SMI_CMD); ^~~~~~~~~~~~~~~ /kisskb/src/drivers/net/phy/mdio-cavium.h:114:37: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] #define oct_mdio_readq(addr) readq((void )addr) ^ /kisskb/src/drivers/net/phy/mdio-cavium.c:93:16: note: in expansion of macro 'oct_mdio_readq' smi_rd.u64 = oct_mdio_readq(p->register_base + SMI_RD_DAT); ^~~~~~~~~~~~~~ /kisskb/src/drivers/net/phy/mdio-cavium.c: In function 'cavium_mdiobus_write': /kisskb/src/drivers/net/phy/mdio-cavium.h:113:48: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] #define oct_mdio_writeq(val, addr) writeq(val, (void )addr) ^ /kisskb/src/drivers/net/phy/mdio-cavium.c:125:2: note: in expansion of macro 'oct_mdio_writeq' oct_mdio_writeq(smi_wr.u64, p->register_base + SMI_WR_DAT); ^~~~~~~~~~~~~~~ /kisskb/src/drivers/net/phy/mdio-cavium.h:113:48: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] #define oct_mdio_writeq(val, addr) writeq(val, (void )addr) ^ /kisskb/src/drivers/net/phy/mdio-cavium.c:131:2: note: in expansion of macro 'oct_mdio_writeq' oct_mdio_writeq(smi_cmd.u64, p->register_base + SMI_CMD); ^~~~~~~~~~~~~~~ /kisskb/src/drivers/net/phy/mdio-cavium.h:114:37: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] #define oct_mdio_readq(addr) readq((void )addr) ^ /kisskb/src/drivers/net/phy/mdio-cavium.c:138:16: note: in expansion of macro 'oct_mdio_readq' smi_wr.u64 = oct_mdio_readq(p->register_base + SMI_WR_DAT); ^~~~~~~~~~~~~~ /kisskb/src/drivers/net/phy/mdio-octeon.c: In function 'octeon_mdiobus_probe': /kisskb/src/drivers/net/phy/mdio-octeon.c:48:3: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] (u64)devm_ioremap(&pdev->dev, mdio_phys, regsize); ^ In file included from /kisskb/src/drivers/net/phy/mdio-octeon.c:14: /kisskb/src/drivers/net/phy/mdio-cavium.h:113:48: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] #define oct_mdio_writeq(val, addr) writeq(val, (void )addr) ^ /kisskb/src/drivers/net/phy/mdio-octeon.c:56:2: note: in expansion of macro 'oct_mdio_writeq' oct_mdio_writeq(smi_en.u64, bus->register_base + SMI_EN); ^~~~~~~~~~~~~~~ /kisskb/src/drivers/net/phy/mdio-cavium.h:113:48: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] #define oct_mdio_writeq(val, addr) writeq(val, (void )addr) ^ /kisskb/src/drivers/net/phy/mdio-octeon.c:77:2: note: in expansion of macro 'oct_mdio_writeq' oct_mdio_writeq(smi_en.u64, bus->register_base + SMI_EN); ^~~~~~~~~~~~~~~ /kisskb/src/drivers/net/phy/mdio-octeon.c: In function 'octeon_mdiobus_remove': /kisskb/src/drivers/net/phy/mdio-cavium.h:113:48: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] #define oct_mdio_writeq(val, addr) writeq(val, (void *)addr) ^ /kisskb/src/drivers/net/phy/mdio-octeon.c:91:2: note: in expansion of macro 'oct_mdio_writeq' oct_mdio_writeq(smi_en.u64, bus->register_base + SMI_EN); ^~~~~~~~~~~~~~~ /kisskb/src/drivers/input/joystick/analog.c:160:2: warning: #warning Precise timer not defined for this architecture. [-Wcpp] #warning Precise timer not defined for this architecture. ^~~~~~~ WARNING: modpost: EXPORT symbol "clear_page" [vmlinux] version generation failed, symbol will not be versioned. WARNING: modpost: EXPORT symbol "copy_page" [vmlinux] version generation failed, symbol will not be versioned. WARNING: modpost: "copy_page" [drivers/md/dm-integrity.ko] has no CRC! WARNING: modpost: "clear_page" [drivers/md/dm-integrity.ko] has no CRC! WARNING: modpost: "clear_page" [drivers/md/raid456.ko] has no CRC! WARNING: modpost: "clear_page" [drivers/scsi/sd_mod.ko] has no CRC! WARNING: modpost: "copy_page" [drivers/block/drbd/drbd.ko] has no CRC! WARNING: modpost: "clear_page" [fs/gfs2/gfs2.ko] has no CRC! WARNING: modpost: "copy_page" [fs/btrfs/btrfs.ko] has no CRC! WARNING: modpost: "clear_page" [fs/btrfs/btrfs.ko] has no CRC! WARNING: modpost: "clear_page" [fs/ocfs2/dlm/ocfs2_dlm.ko] has no CRC! WARNING: modpost: "copy_page" [fs/cachefiles/cachefiles.ko] has no CRC! WARNING: modpost: "copy_page" [fs/nilfs2/nilfs2.ko] has no CRC! WARNING: modpost: "copy_page" [fs/fuse/fuse.ko] has no CRC! WARNING: modpost: "clear_page" [fs/fuse/fuse.ko] has no CRC! WARNING: modpost: "clear_page" [fs/ntfs/ntfs.ko] has no CRC! Completed OK # rm -rf /kisskb/build/gustavoars_nds32-allmodconfig_nds32le-gcc8 # Build took: 0:17:18.116900

© Michael Ellerman 2006-2018.