# git rev-parse -q --verify 0b2c8f8b6b0c7530e2866c95862546d0da2057b0^{commit}
0b2c8f8b6b0c7530e2866c95862546d0da2057b0
already have revision, skipping fetch
# git checkout -q -f -B kisskb 0b2c8f8b6b0c7530e2866c95862546d0da2057b0
# git clean -qxdf
# < git log -1
# commit 0b2c8f8b6b0c7530e2866c95862546d0da2057b0
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Fri Jan 4 10:23:10 2019 -0800
# 
#     i915: fix missing user_access_end() in page fault exception case
#     
#     When commit fddcd00a49e9 ("drm/i915: Force the slow path after a
#     user-write error") unified the error handling for various user access
#     problems, it didn't do the user_access_end() that is needed for the
#     unsafe_put_user() case.
#     
#     It's not a huge deal: a missed user_access_end() will only mean that
#     SMAP protection isn't active afterwards, and for the error case we'll be
#     returning to user mode soon enough anyway.  But it's wrong, and adding
#     the proper user_access_end() is trivial enough (and doing it for the
#     other error cases where it isn't needed doesn't hurt).
#     
#     I noticed it while doing the same prep-work for changing
#     user_access_begin() that precipitated the access_ok() changes in commit
#     96d4f267e40f ("Remove 'type' argument from access_ok() function").
#     
#     Fixes: fddcd00a49e9 ("drm/i915: Force the slow path after a user-write error")
#     Cc: Chris Wilson <chris@chris-wilson.co.uk>
#     Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
#     Cc: stable@kernel.org # v4.20
#     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 0b2c8f8b6b0c7530e2866c95862546d0da2057b0
# < 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/kernel/rcu/srcutree.c: In function 'init_srcu_struct_fields':
/kisskb/src/kernel/rcu/srcutree.c:133:34: warning: 'levelspread[<U2140>]' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/kernel/rcu/srcutree.c:100:6: note: 'levelspread[<U2140>]' was declared here
/kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl':
/kisskb/src/kernel/printk/printk.c:186:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/ipc/shm.c: In function 'ksys_shmdt':
/kisskb/src/ipc/shm.c:1686:59: warning: 'file' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/i2c/i2c-core-base.c: In function 'i2c_generic_scl_recovery':
/kisskb/src/drivers/i2c/i2c-core-base.c:235:5: warning: 'ret' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/gpio/gpiolib-of.c: In function 'of_gpiochip_add':
/kisskb/src/drivers/gpio/gpiolib-of.c:455:8: warning: 'dflags' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/gpio/gpiolib-of.c:441:19: note: 'dflags' was declared here
/kisskb/src/drivers/gpio/gpiolib-of.c:455:8: warning: 'lflags' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/gpio/gpiolib-of.c:440:25: 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:161:19: warning: 'seq' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/lib/rhashtable.c: In function 'rht_deferred_worker':
/kisskb/src/lib/rhashtable.c:264:2: warning: 'next' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/lib/rhashtable.c:229:28: note: 'next' was declared here
/kisskb/src/drivers/mtd/ubi/eba.c: In function 'try_write_vid_and_data':
/kisskb/src/drivers/mtd/ubi/eba.c:1001:7: 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:3405:15: warning: 'tail' 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:341:21: note: 'pdeo' was declared here
/kisskb/src/net/ipv6/ip6_output.c: In function '__ip6_append_data':
/kisskb/src/include/linux/skbuff.h:1338:6: warning: 'extra_uref' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/ipv6/ip6_output.c:1270:14: note: 'extra_uref' was declared here
/kisskb/src/net/ipv4/ip_output.c: In function '__ip_append_data':
/kisskb/src/include/linux/skbuff.h:1338:6: warning: 'extra_uref' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/ipv4/ip_output.c:885:14: note: 'extra_uref' was declared here
Completed OK
# rm -rf /kisskb/build/linus_lpc32xx_defconfig_arm
# Build took: 0:00:48.706487