Buildresult: powerpc-fixes/versatile_defconfig/arm-gcc4.6 built on Aug 13 2019, 00:14

kisskb

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Status:	OK
Date/Time:	Aug 13 2019, 00:14
Duration:	0:00:43.833340
Builder:	blade46
Revision:	powerpc/64e: Drop stale call to smp_processor_id() which hangs SMP startup (`b9ee5e04fd77898208c51b1395fa0b5e8536f9b6)`
Target:	powerpc-fixes/versatile_defconfig/arm-gcc4.6
Branch:	powerpc-fixes
Compiler:	arm-gcc4.6 (arm-unknown-linux-gnueabi-gcc (GCC) 4.6.3 / GNU ld (GNU Binutils) 2.22)
Config:	versatile_defconfig (download)
Log:	Download original Possible warnings (4) drivers/base/regmap/regmap.c:2591:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] drivers/base/regmap/regmap.c:1852:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] kernel/printk/printk.c:194:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] include/linux/list.h:65:12: warning: 'pdeo' may be used uninitialized in this function [-Wuninitialized] Full Log # git rev-parse -q --verify b9ee5e04fd77898208c51b1395fa0b5e8536f9b6^{commit} b9ee5e04fd77898208c51b1395fa0b5e8536f9b6 already have revision, skipping fetch # git checkout -q -f -B kisskb b9ee5e04fd77898208c51b1395fa0b5e8536f9b6 # git clean -qxdf # < git log -1 # commit b9ee5e04fd77898208c51b1395fa0b5e8536f9b6 # Author: Christophe Leroy <christophe.leroy@c-s.fr> # Date: Thu Aug 8 12:48:26 2019 +0000 # # powerpc/64e: Drop stale call to smp_processor_id() which hangs SMP startup # # Commit ebb9d30a6a74 ("powerpc/mm: any thread in one core can be the # first to setup TLB1") removed the need to know the cpu_id in # early_init_this_mmu(), but the call to smp_processor_id() which was # marked __maybe_used remained. # # Since commit ed1cd6deb013 ("powerpc: Activate CONFIG_THREAD_INFO_IN_TASK") # thread_info cannot be reached before MMU is properly set up. # # Drop this stale call to smp_processor_id() which makes SMP hang when # CONFIG_PREEMPT is set. # # Fixes: ebb9d30a6a74 ("powerpc/mm: any thread in one core can be the first to setup TLB1") # Fixes: ed1cd6deb013 ("powerpc: Activate CONFIG_THREAD_INFO_IN_TASK") # Cc: stable@vger.kernel.org # v5.1+ # Reported-by: Chris Packham <Chris.Packham@alliedtelesis.co.nz> # Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> # Tested-by: Chris Packham <chris.packham@alliedtelesis.co.nz> # Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> # Link: https://lore.kernel.org/r/bef479514f4c08329fa649f67735df8918bc0976.1565268248.git.christophe.leroy@c-s.fr # < /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 b9ee5e04fd77898208c51b1395fa0b5e8536f9b6 # < make -s -j 32 ARCH=arm O=/kisskb/build/powerpc-fixes_versatile_defconfig_arm CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi- versatile_defconfig # make -s -j 32 ARCH=arm O=/kisskb/build/powerpc-fixes_versatile_defconfig_arm CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/arm-unknown-linux-gnueabi/bin/arm-unknown-linux-gnueabi- /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/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl': /kisskb/src/kernel/printk/printk.c:194:16: warning: 'old' 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 Completed OK # rm -rf /kisskb/build/powerpc-fixes_versatile_defconfig_arm # Build took: 0:00:43.833340

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