Buildresult: linus/x86_64-allnoconfig/x86_64-gcc4.6 built on Jan 5 2019, 08:29

kisskb

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Status:	OK
Date/Time:	Jan 5 2019, 08:29
Duration:	0:00:16.807890
Builder:	ka3
Revision:	i915: fix missing user_access_end() in page fault exception case (`0b2c8f8b6b0c7530e2866c95862546d0da2057b0)`
Target:	linus/x86_64-allnoconfig/x86_64-gcc4.6
Branch:	linus
Compiler:	x86_64-gcc4.6 (x86_64-linux-gcc (GCC) 4.6.3 / GNU ld (GNU Binutils) 2.22)
Config:	allnoconfig (download)
Log:	Download original Possible warnings (3) kernel/printk/printk.c:186:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] arch/x86/kernel/apic/io_apic.c:1034:6: warning: 'irq' may be used uninitialized in this function [-Wuninitialized] arch/x86/kernel/e820.c:650:16: warning: 'gapstart' may be used uninitialized in this function [-Wuninitialized] Full Log # 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/x86_64-linux/bin/x86_64-linux-gcc --version # < /opt/cross/kisskb/gcc-4.6.3-nolibc/x86_64-linux/bin/x86_64-linux-ld --version # < git log --format=%s --max-count=1 0b2c8f8b6b0c7530e2866c95862546d0da2057b0 # < make -s -j 80 ARCH=x86_64 O=/kisskb/build/linus_x86_64-allnoconfig_x86_64 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/x86_64-linux/bin/x86_64-linux- allnoconfig # make -s -j 80 ARCH=x86_64 O=/kisskb/build/linus_x86_64-allnoconfig_x86_64 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/x86_64-linux/bin/x86_64-linux- /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/arch/x86/kernel/apic/io_apic.c: In function 'mp_map_pin_to_irq': /kisskb/src/arch/x86/kernel/apic/io_apic.c:1034:6: warning: 'irq' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/arch/x86/kernel/e820.c: In function 'e820__setup_pci_gap': /kisskb/src/arch/x86/kernel/e820.c:650:16: warning: 'gapstart' may be used uninitialized in this function [-Wuninitialized] Completed OK # rm -rf /kisskb/build/linus_x86_64-allnoconfig_x86_64 # Build took: 0:00:16.807890

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