# git rev-parse -q --verify cc3a7bfe62b947b423fcb2cfe89fcba92bf48fa3^{commit}
cc3a7bfe62b947b423fcb2cfe89fcba92bf48fa3
already have revision, skipping fetch
# git checkout -q -f -B kisskb cc3a7bfe62b947b423fcb2cfe89fcba92bf48fa3
# git clean -qxdf
# < git log -1
# commit cc3a7bfe62b947b423fcb2cfe89fcba92bf48fa3
# Author: Eric Sandeen <sandeen@redhat.com>
# Date:   Wed Oct 2 16:17:54 2019 -0500
# 
#     vfs: Fix EOVERFLOW testing in put_compat_statfs64
#     
#     Today, put_compat_statfs64() disallows nearly any field value over
#     2^32 if f_bsize is only 32 bits, but that makes no sense.
#     compat_statfs64 is there for the explicit purpose of providing 64-bit
#     fields for f_files, f_ffree, etc.  And f_bsize is always only 32 bits.
#     
#     As a result, 32-bit userspace gets -EOVERFLOW for i.e.  large file
#     counts even with -D_FILE_OFFSET_BITS=64 set.
#     
#     In reality, only f_bsize and f_frsize can legitimately overflow
#     (fields like f_type and f_namelen should never be large), so test
#     only those fields.
#     
#     This bug was discussed at length some time ago, and this is the proposal
#     Al suggested at https://lkml.org/lkml/2018/8/6/640.  It seemed to get
#     dropped amid the discussion of other related changes, but this
#     part seems obviously correct on its own, so I've picked it up and
#     sent it, for expediency.
#     
#     Fixes: 64d2ab32efe3 ("vfs: fix put_compat_statfs64() does not handle errors")
#     Signed-off-by: Eric Sandeen <sandeen@redhat.com>
#     Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi-gcc --version
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi-ld --version
# < git log --format=%s --max-count=1 cc3a7bfe62b947b423fcb2cfe89fcba92bf48fa3
# < make -s -j 48 ARCH=arm O=/kisskb/build/linus_lpc32xx_defconfig_arm CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi-  lpc32xx_defconfig
# make -s -j 48 ARCH=arm O=/kisskb/build/linus_lpc32xx_defconfig_arm CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi-  
/kisskb/src/ipc/shm.c: In function 'ksys_shmdt':
/kisskb/src/ipc/shm.c:1712:59: warning: 'file' may be used uninitialized in this function [-Wuninitialized]
/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/kernel/rcu/srcutree.c: In function 'init_srcu_struct_fields':
/kisskb/src/kernel/rcu/srcutree.c:121:34: warning: 'levelspread[<U6320>]' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/kernel/rcu/srcutree.c:88:6: note: 'levelspread[<U6320>]' was declared here
/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/drivers/gpio/gpiolib-of.c: In function 'of_gpiochip_add':
/kisskb/src/drivers/gpio/gpiolib-of.c:626:8: warning: 'dflags' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/gpio/gpiolib-of.c:612:19: note: 'dflags' was declared here
/kisskb/src/drivers/gpio/gpiolib-of.c:626:8: warning: 'lflags' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/gpio/gpiolib-of.c:611:16: note: 'lflags' was declared here
/kisskb/src/net/core/gen_stats.c: In function '__gnet_stats_copy_basic':
/kisskb/src/net/core/gen_stats.c:157:19: warning: 'seq' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/gpu/drm/drm_dp_mst_topology.c: In function 'drm_dp_sideband_msg_build':
/kisskb/src/drivers/gpu/drm/drm_dp_mst_topology.c:429:23: warning: 'hdrlen' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/mtd/ubi/eba.c: In function 'try_write_vid_and_data':
/kisskb/src/drivers/mtd/ubi/eba.c:988:7: warning: 'opnum' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/core/dev.c: In function 'validate_xmit_skb_list':
/kisskb/src/net/core/dev.c:3407:15: warning: 'tail' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/sound/soc/soc-pcm.c: In function 'soc_pcm_trigger':
/kisskb/src/sound/soc/soc-pcm.c:1074:5: warning: 'ret' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/sound/soc/soc-pcm.c: In function 'soc_pcm_bespoke_trigger':
/kisskb/src/sound/soc/soc-pcm.c:1092:9: warning: 'ret' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/usb/core/devio.c: In function 'async_completed':
/kisskb/src/drivers/usb/core/devio.c:625:23: warning: 'errno' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/gpu/drm/drm_atomic.c: In function 'drm_atomic_check_only':
/kisskb/src/drivers/gpu/drm/drm_atomic.c:426:38: warning: 'crtc_state' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/gpu/drm/drm_atomic.c:405:25: note: 'crtc_state' was declared here
/kisskb/src/lib/rhashtable.c: In function 'rht_deferred_worker':
/kisskb/src/include/linux/rhashtable.h:110:10: warning: 'next' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/lib/rhashtable.c:222:28: note: 'next' was declared here
WARNING: "return_address" [vmlinux] is a static EXPORT_SYMBOL_GPL
WARNING: "return_address" [vmlinux] is a static EXPORT_SYMBOL_GPL
Completed OK
# rm -rf /kisskb/build/linus_lpc32xx_defconfig_arm
# Build took: 0:01:00.917957