# 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 # 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 # Cc: Eic Dumazet # Cc: Al Viro # Cc: Alan Stern # Cc: Marco Elver # Cc: Andrea Parri # Cc: Paul McKenney # Signed-off-by: Linus Torvalds # < /opt/cross/kisskb/gcc-4.6.3-nolibc/m68k-linux/bin/m68k-linux-gcc --version # < /opt/cross/kisskb/gcc-4.6.3-nolibc/m68k-linux/bin/m68k-linux-ld --version # < git log --format=%s --max-count=1 0be0ee71816b2b6725e2b4f32ad6726c9d729777 # < make -s -j 48 ARCH=m68k O=/kisskb/build/linus_m68k-allmodconfig_m68k CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/m68k-linux/bin/m68k-linux- allmodconfig WARNING: unmet direct dependencies detected for NEED_MULTIPLE_NODES Depends on [n]: DISCONTIGMEM [=n] || NUMA Selected by [y]: - SINGLE_MEMORY_CHUNK [=y] && MMU [=y] # Added to kconfig CONFIG_BUILD_DOCSRC=n # Added to kconfig CONFIG_MODULE_SIG=n # Added to kconfig CONFIG_SAMPLES=n # yes \n | make -s -j 48 ARCH=m68k O=/kisskb/build/linus_m68k-allmodconfig_m68k CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/m68k-linux/bin/m68k-linux- oldconfig yes: standard output: Broken pipe # make -s -j 48 ARCH=m68k O=/kisskb/build/linus_m68k-allmodconfig_m68k CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/m68k-linux/bin/m68k-linux- WARNING: unmet direct dependencies detected for NEED_MULTIPLE_NODES Depends on [n]: DISCONTIGMEM [=n] || NUMA Selected by [y]: - SINGLE_MEMORY_CHUNK [=y] && MMU [=y] WARNING: unmet direct dependencies detected for NEED_MULTIPLE_NODES Depends on [n]: DISCONTIGMEM [=n] || NUMA Selected by [y]: - SINGLE_MEMORY_CHUNK [=y] && MMU [=y] WARNING: unmet direct dependencies detected for NEED_MULTIPLE_NODES Depends on [n]: DISCONTIGMEM [=n] || NUMA Selected by [y]: - SINGLE_MEMORY_CHUNK [=y] && MMU [=y] usr/include/asm/bootinfo-amiga.h:18: found __[us]{8,16,32,64} type without #include :1511:2: warning: #warning syscall clone3 not implemented [-Wcpp] /kisskb/src/arch/m68k/mvme147/config.c: In function 'mvme147_hwclk': /kisskb/src/arch/m68k/mvme147/config.c:175:2: warning: #warning check me! [-Wcpp] /kisskb/src/arch/m68k/mvme16x/config.c: In function 'mvme16x_hwclk': /kisskb/src/arch/m68k/mvme16x/config.c:440:2: warning: #warning check me! [-Wcpp] /kisskb/src/arch/m68k/mvme16x/config.c:440:2: warning: #warning check me! [-Wcpp] /kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl': /kisskb/src/kernel/printk/printk.c:204:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/android/binderfs.c: In function 'binderfs_fill_super': /kisskb/src/drivers/android/binderfs.c:657:9: warning: missing braces around initializer [-Wmissing-braces] /kisskb/src/drivers/android/binderfs.c:657:9: warning: (near initialization for 'device_info.name') [-Wmissing-braces] /kisskb/src/kernel/acct.c: In function 'acct_pin_kill': /kisskb/src/kernel/acct.c:177:2: warning: value computed is not used [-Wunused-value] /kisskb/src/drivers/base/regmap/regmap.c: In function 'regmap_raw_read': /kisskb/src/drivers/base/regmap/regmap.c:2591:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/base/regmap/regmap.c: In function '_regmap_raw_write': /kisskb/src/drivers/base/regmap/regmap.c:1852:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/sound/hda/hdac_regmap.c: In function 'hda_reg_write': /kisskb/src/sound/hda/hdac_regmap.c:284:16: warning: 'err' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/afs/dynroot.c: In function 'afs_lookup_atcell': /kisskb/src/fs/afs/dynroot.c:117:6: warning: 'len' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/sound/soc/fsl/imx-audmix.c: In function 'imx_audmix_probe': /kisskb/src/sound/soc/fsl/imx-audmix.c:302:45: warning: 'capture_dai_name' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/mm/memcontrol.c: In function '__invalidate_reclaim_iterators': /kisskb/src/mm/memcontrol.c:1161:4: warning: value computed is not used [-Wunused-value] /kisskb/src/sound/soc/codecs/arizona.c: In function 'arizona_hw_params': /kisskb/src/sound/soc/codecs/arizona.c:1890:3: warning: 'aif_rx_state' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/sound/soc/codecs/arizona.c:1887:3: warning: 'aif_tx_state' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/f2fs/file.c: In function 'f2fs_precache_extents': /kisskb/src/fs/f2fs/file.c:3095:6: warning: 'err' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/net/bridge/br_netlink.c: In function 'br_process_vlan_info': /kisskb/src/net/bridge/br_netlink.c:587:10: warning: 'err' may be used uninitialized in this function [-Wuninitialized] In file included from /kisskb/src/drivers/block/paride/bpck6.c:33:0: /kisskb/src/drivers/block/paride/ppc6lnx.c: In function 'ppc6_select': /kisskb/src/drivers/block/paride/ppc6lnx.c:131:18: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/drivers/block/paride/ppc6lnx.c:142:3: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/drivers/block/paride/ppc6lnx.c:144:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/drivers/block/paride/ppc6lnx.c:145:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/drivers/block/paride/ppc6lnx.c:146:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/drivers/block/paride/ppc6lnx.c:147:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/drivers/block/paride/ppc6lnx.c:162:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/drivers/block/paride/ppc6lnx.c:201:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/drivers/block/paride/ppc6lnx.c: In function 'ppc6_deselect': /kisskb/src/drivers/block/paride/ppc6lnx.c:217:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/drivers/block/paride/ppc6lnx.c: In function 'ppc6_send_cmd': /kisskb/src/drivers/block/paride/ppc6lnx.c:235:4: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/drivers/block/paride/ppc6lnx.c: In function 'ppc6_wr_data_byte': /kisskb/src/drivers/block/paride/ppc6lnx.c:266:4: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/drivers/block/paride/ppc6lnx.c: In function 'ppc6_rd_data_byte': /kisskb/src/drivers/block/paride/ppc6lnx.c:329:11: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/drivers/block/paride/ppc6lnx.c: In function 'ppc6_rd_data_blk': /kisskb/src/drivers/block/paride/ppc6lnx.c:430:15: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/drivers/block/paride/ppc6lnx.c: In function 'ppc6_wr_data_blk': /kisskb/src/drivers/block/paride/ppc6lnx.c:537:5: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/drivers/block/paride/ppc6lnx.c:560:4: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/drivers/block/paride/ppc6lnx.c:575:6: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/fs/f2fs/node.c: In function '__set_nat_cache_dirty': /kisskb/src/include/linux/list.h:93:12: warning: 'head' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/f2fs/node.c:236:24: note: 'head' was declared here /kisskb/src/net/core/filter.c: In function 'bpf_clear_redirect_map': /kisskb/src/net/core/filter.c:3603:4: warning: value computed is not used [-Wunused-value] /kisskb/src/sound/soc/codecs/da7219-aad.c: In function 'da7219_aad_hptest_work': /kisskb/src/sound/soc/codecs/da7219-aad.c:317:17: warning: 'pll_ctrl' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/proc/inode.c: In function 'proc_reg_open': /kisskb/src/include/linux/list.h:65:12: warning: 'pdeo' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/proc/inode.c:338:21: note: 'pdeo' was declared here /kisskb/src/net/core/devlink.c: In function 'devlink_fmsg_prepare_skb': /kisskb/src/net/core/devlink.c:4484:6: warning: 'err' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/btrfs/ref-verify.c: In function 'process_extent_item.isra.6': /kisskb/src/fs/btrfs/ref-verify.c:492:2: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/nfsd/nfs4xdr.c: In function 'nfsd4_encode_components_esc': /kisskb/src/fs/nfsd/nfs4xdr.c:2076:9: warning: 'str' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/ocfs2/alloc.c: In function 'ocfs2_trim_mainbm': /kisskb/src/fs/ocfs2/alloc.c:7608:17: warning: 'first_bit' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/nfs/nfs3acl.c: In function 'nfs3_abort_get_acl': /kisskb/src/fs/nfs/nfs3acl.c:44:2: warning: value computed is not used [-Wunused-value] /kisskb/src/fs/ocfs2/file.c: In function 'ocfs2_file_write_iter': /kisskb/src/fs/ocfs2/file.c:2421:3: warning: value computed is not used [-Wunused-value] /kisskb/src/net/ncsi/ncsi-manage.c: In function 'set_one_vid': /kisskb/src/net/ncsi/ncsi-manage.c:671:19: warning: 'vid' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/i2c/busses/i2c-sh_mobile.c: In function 'sh_mobile_i2c_isr_rx': /kisskb/src/drivers/i2c/busses/i2c-sh_mobile.c:399:26: warning: 'data' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/input/joystick/analog.c:160:2: warning: #warning Precise timer not defined for this architecture. [-Wcpp] /kisskb/src/drivers/infiniband/sw/siw/siw_qp_rx.c: In function 'siw_rqe_get': /kisskb/src/include/linux/spinlock.h:393:2: warning: 'flags' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/infiniband/sw/siw/siw_qp_rx.c:335:16: note: 'flags' was declared here /kisskb/src/drivers/iommu/io-pgtable-arm-v7s.c: In function '__arm_v7s_map': /kisskb/src/drivers/iommu/io-pgtable-arm-v7s.c:517:2: warning: 'cptep' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/posix_acl.c: In function 'get_acl': /kisskb/src/fs/posix_acl.c:148:3: warning: value computed is not used [-Wunused-value] /kisskb/src/net/mac80211/mlme.c: In function 'ieee80211_handle_pwr_constr.isra.37': /kisskb/src/net/mac80211/mlme.c:1576:3: warning: 'pwr_level_cisco' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/iio/imu/bmi160/bmi160_core.c: In function 'bmi160_config_pin.constprop.7': /kisskb/src/drivers/iio/imu/bmi160/bmi160_core.c:618:3: warning: 'pin_name' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/iio/imu/bmi160/bmi160_core.c:606:29: warning: 'int_map_mask' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/iio/imu/bmi160/bmi160_core.c:599:29: warning: 'int_latch_mask' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/iio/imu/bmi160/bmi160_core.c:577:47: warning: 'int_out_ctrl_shift' may be used uninitialized in this function [-Wuninitialized] In file included from :0:0: /kisskb/src/include/linux/via-core.h: In function 'via_read_reg': /kisskb/src/include/linux/via-core.h:192:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/include/linux/via-core.h: In function 'via_write_reg': /kisskb/src/include/linux/via-core.h:198:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/include/linux/via-core.h: In function 'via_write_reg_mask': /kisskb/src/include/linux/via-core.h:206:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/drivers/misc/altera-stapl/altera-lpt.c: In function 'byteblaster_write': /kisskb/src/drivers/misc/altera-stapl/altera-lpt.c:20:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/drivers/misc/altera-stapl/altera-lpt.c: In function 'byteblaster_read': /kisskb/src/drivers/misc/altera-stapl/altera-lpt.c:26:9: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/sound/soc/codecs/rt5665.c: In function 'rt5665_i2s_pin_event': /kisskb/src/sound/soc/codecs/rt5665.c:2663:33: warning: 'val2' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/sound/soc/codecs/rt5665.c:2660:33: warning: 'val1' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/hwmon/sch56xx-common.c: In function 'sch56xx_send_cmd': /kisskb/src/drivers/hwmon/sch56xx-common.c:132:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/drivers/hwmon/smsc47b397.c: In function 'smsc47b397_read_value': /kisskb/src/drivers/hwmon/smsc47b397.c:111:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/drivers/net/ethernet/8390/wd.c: In function 'wd_probe1': /kisskb/src/drivers/net/ethernet/8390/wd.c:289:4: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/drivers/net/ethernet/8390/wd.c:296:4: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/drivers/net/ethernet/8390/lib8390.c:201:12: warning: '__ei_open' defined but not used [-Wunused-function] /kisskb/src/drivers/net/ethernet/8390/lib8390.c:230:12: warning: '__ei_close' defined but not used [-Wunused-function] /kisskb/src/drivers/net/ethernet/8390/lib8390.c:254:13: warning: '__ei_tx_timeout' defined but not used [-Wunused-function] /kisskb/src/drivers/net/ethernet/8390/lib8390.c:300:20: warning: '__ei_start_xmit' defined but not used [-Wunused-function] /kisskb/src/drivers/net/ethernet/8390/lib8390.c:509:13: warning: '__ei_poll' defined but not used [-Wunused-function] /kisskb/src/drivers/net/ethernet/8390/lib8390.c:850:33: warning: '__ei_get_stats' defined but not used [-Wunused-function] /kisskb/src/drivers/net/ethernet/8390/lib8390.c:950:13: warning: '__ei_set_multicast_list' defined but not used [-Wunused-function] /kisskb/src/drivers/net/ethernet/8390/lib8390.c:988:27: warning: '____alloc_ei_netdev' defined but not used [-Wunused-function] /kisskb/src/drivers/media/platform/fsl-viu.c:36:0: warning: "out_be32" redefined [enabled by default] /kisskb/src/arch/m68k/include/asm/raw_io.h:32:0: note: this is the location of the previous definition /kisskb/src/drivers/media/platform/fsl-viu.c:37:0: warning: "in_be32" redefined [enabled by default] /kisskb/src/arch/m68k/include/asm/raw_io.h:23:0: note: this is the location of the previous definition /kisskb/src/drivers/net/phy/mdio-cavium.c: In function 'cavium_mdiobus_set_mode': /kisskb/src/drivers/net/phy/mdio-cavium.c:21:16: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/drivers/net/phy/mdio-cavium.c:24:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/drivers/net/phy/mdio-cavium.c: In function 'cavium_mdiobus_c45_addr': /kisskb/src/drivers/net/phy/mdio-cavium.c:39:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/drivers/net/phy/mdio-cavium.c:47:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/drivers/net/phy/mdio-cavium.c:54:16: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/drivers/net/phy/mdio-cavium.c: In function 'cavium_mdiobus_read': /kisskb/src/drivers/net/phy/mdio-cavium.c:86:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/drivers/net/phy/mdio-cavium.c:93:16: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/drivers/net/phy/mdio-cavium.c: In function 'cavium_mdiobus_write': /kisskb/src/drivers/net/phy/mdio-cavium.c:125:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/drivers/net/phy/mdio-cavium.c:131:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/drivers/net/phy/mdio-cavium.c:138:16: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /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] /kisskb/src/drivers/net/phy/mdio-octeon.c:56:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/drivers/net/phy/mdio-octeon.c:77:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/drivers/net/phy/mdio-octeon.c: In function 'octeon_mdiobus_remove': /kisskb/src/drivers/net/phy/mdio-octeon.c:91:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/drivers/net/tun.c: In function 'tun_get_user': /kisskb/src/drivers/net/tun.c:1836:30: warning: 'copylen' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/net/tun.c:1749:46: warning: 'linear' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/net/wireless/broadcom/b43/phy_n.c: In function 'b43_nphy_rf_ctl_override_rev7': /kisskb/src/drivers/net/wireless/broadcom/b43/phy_n.c:190:21: warning: 'val_addr' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/md/dm-writecache.c: In function 'writecache_writeback': /kisskb/src/drivers/md/dm-writecache.c:1613:18: warning: 'g' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/soc/qcom/rpmh.c: In function 'rpmh_write_batch': /kisskb/src/drivers/soc/qcom/rpmh.c:355:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c: In function 'rtl8723a_phy_lc_calibrate': /kisskb/src/drivers/net/wireless/realtek/rtl8xxxu/rtl8xxxu_core.c:3477:23: warning: 'rf_amode' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/scsi/ppa.c: In function 'ppa_byte_out': /kisskb/src/drivers/scsi/ppa.c:245:3: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/drivers/scsi/ppa.c: In function 'ppa_byte_in': /kisskb/src/drivers/scsi/ppa.c:257:15: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/drivers/scsi/ppa.c: In function 'ppa_d_pulse': /kisskb/src/drivers/scsi/ppa.c:379:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/drivers/scsi/ppa.c: In function 'ppa_c_pulse': /kisskb/src/drivers/scsi/ppa.c:399:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/drivers/scsi/ppa.c: In function 'ppa_select': /kisskb/src/drivers/scsi/ppa.c:436:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/drivers/scsi/ppa.c:439:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/drivers/scsi/imm.c: In function 'imm_negotiate': /kisskb/src/drivers/scsi/imm.c:248:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/drivers/scsi/imm.c: In function 'imm_byte_out': /kisskb/src/drivers/scsi/imm.c:304:3: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/drivers/scsi/imm.c:306:3: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/drivers/scsi/imm.c: In function 'imm_byte_in': /kisskb/src/drivers/scsi/imm.c:342:15: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/drivers/scsi/imm.c: In function 'imm_cpp': /kisskb/src/drivers/scsi/imm.c:462:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/drivers/scsi/imm.c:464:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/drivers/scsi/imm.c:466:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/drivers/scsi/imm.c:468:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/drivers/scsi/imm.c:471:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/drivers/scsi/imm.c:474:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/drivers/scsi/imm.c:487:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/drivers/scsi/imm.c:495:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/drivers/scsi/imm.c: In function 'imm_select': /kisskb/src/drivers/scsi/imm.c:564:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] In file included from /kisskb/src/drivers/tty/rocket.c:81:0: /kisskb/src/drivers/tty/rocket_int.h: In function 'sOutB': /kisskb/src/drivers/tty/rocket_int.h:46:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/drivers/tty/rocket_int.h: In function 'sOutW': /kisskb/src/drivers/tty/rocket_int.h:54:2: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/drivers/tty/rocket_int.h: In function 'sInB': /kisskb/src/drivers/tty/rocket_int.h:68:9: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/drivers/tty/rocket_int.h: In function 'sInW': /kisskb/src/drivers/tty/rocket_int.h:73:9: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/drivers/tty/rocket_int.h:73:9: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/drivers/tty/rocket_int.h:73:9: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/drivers/tty/rocket_int.h:73:9: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/drivers/usb/usbip/stub_rx.c: In function 'stub_recv_cmd_submit': /kisskb/src/drivers/usb/usbip/stub_rx.c:573:5: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] Completed OK # rm -rf /kisskb/build/linus_m68k-allmodconfig_m68k # Build took: 0:07:30.071835