Buildresult: linus/nds32-allmodconfig/nds32le-gcc8 built on Nov 26 2019, 06:36

kisskb

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Status:	OK
Date/Time:	Nov 26 2019, 06:36
Duration:	0:11:58.087228
Builder:	ka2
Revision:	vfs: properly and reliably lock f_pos in fdget_pos() (`0be0ee71816b2b6725e2b4f32ad6726c9d729777)`
Target:	linus/nds32-allmodconfig/nds32le-gcc8
Branch:	linus
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 (35) <stdin>:1511:2: warning: #warning syscall clone3 not implemented [-Wcpp] 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. 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] WARNING: EXPORT symbol "clear_page" [vmlinux] version generation failed, symbol will not be versioned. WARNING: EXPORT symbol "copy_page" [vmlinux] version generation failed, symbol will not be versioned. WARNING: "copy_page" [drivers/md/dm-integrity.ko] has no CRC! WARNING: "clear_page" [drivers/md/dm-integrity.ko] has no CRC! WARNING: "clear_page" [drivers/md/raid456.ko] has no CRC! WARNING: "clear_page" [drivers/scsi/sd_mod.ko] has no CRC! WARNING: "copy_page" [drivers/block/drbd/drbd.ko] has no CRC! WARNING: "copy_page" [drivers/gpu/drm/ttm/ttm.ko] has no CRC! WARNING: "clear_page" [drivers/gpu/drm/ttm/ttm.ko] has no CRC! WARNING: "clear_page" [fs/gfs2/gfs2.ko] has no CRC! WARNING: "copy_page" [fs/btrfs/btrfs.ko] has no CRC! WARNING: "clear_page" [fs/btrfs/btrfs.ko] has no CRC! WARNING: "clear_page" [fs/ocfs2/dlm/ocfs2_dlm.ko] has no CRC! WARNING: "copy_page" [fs/cachefiles/cachefiles.ko] has no CRC! WARNING: "copy_page" [fs/nilfs2/nilfs2.ko] has no CRC! WARNING: "copy_page" [fs/fuse/fuse.ko] has no CRC! WARNING: "clear_page" [fs/fuse/fuse.ko] has no CRC! WARNING: "clear_page" [fs/ntfs/ntfs.ko] has no CRC! Full Log # git rev-parse -q --verify 0be0ee71816b2b6725e2b4f32ad6726c9d729777^{commit} 0be0ee71816b2b6725e2b4f32ad6726c9d729777 already have revision, skipping fetch # git checkout -q -f -B kisskb 0be0ee71816b2b6725e2b4f32ad6726c9d729777 # git clean -qxdf # < git log -1 # commit 0be0ee71816b2b6725e2b4f32ad6726c9d729777 # Author: Linus Torvalds <torvalds@linux-foundation.org> # Date: Mon Nov 11 15:51:03 2019 -0800 # # vfs: properly and reliably lock f_pos in fdget_pos() # # fdget_pos() is used by file operations that will read and update f_pos: # things like "read()", "write()" and "lseek()" (but not, for example, # "pread()/pwrite" that get their file positions elsewhere). # # However, it had two separate escape clauses for this, because not # everybody wants or needs serialization of the file position. # # The first and most obvious case is the "file descriptor doesn't have a # position at all", ie a stream-like file. Except we didn't actually use # FMODE_STREAM, but instead used FMODE_ATOMIC_POS. The reason for that # was that FMODE_STREAM didn't exist back in the days, but also that we # didn't want to mark all the special cases, so we only marked the ones # that _required_ position atomicity according to POSIX - regular files # and directories. # # The case one was intentionally lazy, but now that we _do_ have # FMODE_STREAM we could and should just use it. With the change to use # FMODE_STREAM, there are no remaining uses for FMODE_ATOMIC_POS, and all # the code to set it is deleted. # # Any cases where we don't want the serialization because the driver (or # subsystem) doesn't use the file position should just be updated to do # "stream_open()". We've done that for all the obvious and common # situations, we may need a few more. Quoting Kirill Smelkov in the # original FMODE_STREAM thread (see link below for full email): # # "And I appreciate if people could help at least somehow with "getting # rid of mixed case entirely" (i.e. always lock f_pos_lock on # !FMODE_STREAM), because this transition starts to diverge from my # particular use-case too far. To me it makes sense to do that # transition as follows: # # - convert nonseekable_open -> stream_open via stream_open.cocci; # - audit other nonseekable_open calls and convert left users that # truly don't depend on position to stream_open; # - extend stream_open.cocci to analyze alloc_file_pseudo as well (this # will cover pipes and sockets), or maybe convert pipes and sockets # to FMODE_STREAM manually; # - extend stream_open.cocci to analyze file_operations that use # no_llseek or noop_llseek, but do not use nonseekable_open or # alloc_file_pseudo. This might find files that have stream semantic # but are opened differently; # - extend stream_open.cocci to analyze file_operations whose # .read/.write do not use ppos at all (independently of how file was # opened); # - ... # - after that remove FMODE_ATOMIC_POS and always take f_pos_lock if # !FMODE_STREAM; # - gather bug reports for deadlocked read/write and convert missed # cases to FMODE_STREAM, probably extending stream_open.cocci along # the road to catch similar cases # # i.e. always take f_pos_lock unless a file is explicitly marked as # being stream, and try to find and cover all files that are streams" # # We have not done the "extend stream_open.cocci to analyze # alloc_file_pseudo" as well, but the previous commit did manually handle # the case of pipes and sockets. # # The other case where we can avoid locking f_pos is the "this file # descriptor only has a single user and it is us, and thus there is no # need to lock it". # # The second test was correct, although a bit subtle and worth just # re-iterating here. There are two kinds of other sources of references # to the same file descriptor: file descriptors that have been explicitly # shared across fork() or with dup(), and file tables having elevated # reference counts due to threading (or explicit file sharing with # clone()). # # The first case would have incremented the file count explicitly, and in # the second case the previous __fdget() would have incremented it for us # and set the FDPUT_FPUT flag. # # But in both cases the file count would be greater than one, so the # "file_count(file) > 1" test catches both situations. Also note that if # file_count is 1, that also means that no other thread can have access to # the file table, so there also cannot be races with concurrent calls to # dup()/fork()/clone() that would increment the file count any other way. # # Link: https://lore.kernel.org/linux-fsdevel/20190413184404.GA13490@deco.navytux.spb.ru # Cc: Kirill Smelkov <kirr@nexedi.com> # Cc: Eic Dumazet <edumazet@google.com> # Cc: Al Viro <viro@zeniv.linux.org.uk> # Cc: Alan Stern <stern@rowland.harvard.edu> # Cc: Marco Elver <elver@google.com> # Cc: Andrea Parri <parri.andrea@gmail.com> # Cc: Paul McKenney <paulmck@kernel.org> # Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> # < /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 0be0ee71816b2b6725e2b4f32ad6726c9d729777 # < make -s -j 48 ARCH=nds32 O=/kisskb/build/linus_nds32-allmodconfig_nds32le CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/nds32le-linux/bin/nds32le-linux- allmodconfig # make -s -j 48 ARCH=nds32 O=/kisskb/build/linus_nds32-allmodconfig_nds32le 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] /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. ^~~~~~~ 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); ^~~~~~~~~~~~~~~ WARNING: EXPORT symbol "clear_page" [vmlinux] version generation failed, symbol will not be versioned. WARNING: EXPORT symbol "copy_page" [vmlinux] version generation failed, symbol will not be versioned. WARNING: "copy_page" [drivers/md/dm-integrity.ko] has no CRC! WARNING: "clear_page" [drivers/md/dm-integrity.ko] has no CRC! WARNING: "clear_page" [drivers/md/raid456.ko] has no CRC! WARNING: "clear_page" [drivers/scsi/sd_mod.ko] has no CRC! WARNING: "copy_page" [drivers/block/drbd/drbd.ko] has no CRC! WARNING: "copy_page" [drivers/gpu/drm/ttm/ttm.ko] has no CRC! WARNING: "clear_page" [drivers/gpu/drm/ttm/ttm.ko] has no CRC! WARNING: "clear_page" [fs/gfs2/gfs2.ko] has no CRC! WARNING: "copy_page" [fs/btrfs/btrfs.ko] has no CRC! WARNING: "clear_page" [fs/btrfs/btrfs.ko] has no CRC! WARNING: "clear_page" [fs/ocfs2/dlm/ocfs2_dlm.ko] has no CRC! WARNING: "copy_page" [fs/cachefiles/cachefiles.ko] has no CRC! WARNING: "copy_page" [fs/nilfs2/nilfs2.ko] has no CRC! WARNING: "copy_page" [fs/fuse/fuse.ko] has no CRC! WARNING: "clear_page" [fs/fuse/fuse.ko] has no CRC! WARNING: "clear_page" [fs/ntfs/ntfs.ko] has no CRC! Completed OK # rm -rf /kisskb/build/linus_nds32-allmodconfig_nds32le # Build took: 0:11:58.087228

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