Buildresult: powerpc-fixes/83xx/kmeter1_defconfig/powerpc-gcc4.6 built on Dec 30 2018, 15:33

kisskb

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Status:	OK
Date/Time:	Dec 30 2018, 15:33
Duration:	0:00:21.797452
Builder:	ka4
Revision:	KVM: PPC: Book3S HV: radix: Fix uninitialized var build error (`f460772291f8171988b2b60141a45706123d0c69)`
Target:	powerpc-fixes/83xx/kmeter1_defconfig/powerpc-gcc4.6
Branch:	powerpc-fixes
Compiler:	powerpc-gcc4.6 (powerpc-linux-gcc (GCC) 4.6.3 / GNU ld (GNU Binutils) 2.22)
Config:	83xx/kmeter1_defconfig (download)
Log:	Download original Possible warnings (8) kernel/rcu/srcutree.c:133:34: warning: 'levelspread[<U7c80>]' may be used uninitialized in this function [-Wuninitialized] kernel/printk/printk.c:186:16: 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] drivers/i2c/i2c-core-base.c:235:5: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] drivers/tty/serial/8250/8250_core.c:247:18: warning: 'i' may be used uninitialized in this function [-Wuninitialized] net/bridge/br_netlink.c:647:7: warning: 'err' may be used uninitialized in this function [-Wuninitialized] drivers/net/tun.c:1823:30: warning: 'copylen' may be used uninitialized in this function [-Wuninitialized] drivers/net/tun.c:1733:46: warning: 'linear' may be used uninitialized in this function [-Wuninitialized] Full Log # git rev-parse -q --verify f460772291f8171988b2b60141a45706123d0c69^{commit} f460772291f8171988b2b60141a45706123d0c69 already have revision, skipping fetch # git checkout -q -f -B kisskb f460772291f8171988b2b60141a45706123d0c69 # git clean -qxdf # < git log -1 # commit f460772291f8171988b2b60141a45706123d0c69 # Author: Michael Ellerman <mpe@ellerman.id.au> # Date: Sun Dec 30 14:05:13 2018 +1100 # # KVM: PPC: Book3S HV: radix: Fix uninitialized var build error # # Old GCCs (4.6.3 at least), aren't able to follow the logic in # __kvmhv_copy_tofrom_guest_radix() and warn that old_pid is used # uninitialized: # # arch/powerpc/kvm/book3s_64_mmu_radix.c:75:3: error: 'old_pid' may be # used uninitialized in this function # # The logic is OK, we only use old_pid if quadrant == 1, and in that # case it has definitely be initialised, eg: # # if (quadrant == 1) { # old_pid = mfspr(SPRN_PID); # ... # if (quadrant == 1 && pid != old_pid) # mtspr(SPRN_PID, old_pid); # # Annotate it to fix the error. # # Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> # < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-gcc --version # < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-ld --version # < git log --format=%s --max-count=1 f460772291f8171988b2b60141a45706123d0c69 # < make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-fixes_83xx_kmeter1_defconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- 83xx/kmeter1_defconfig # make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-fixes_83xx_kmeter1_defconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- /kisskb/src/kernel/rcu/srcutree.c: In function 'init_srcu_struct_fields': /kisskb/src/kernel/rcu/srcutree.c:133:34: warning: 'levelspread[<U7c80>]' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/kernel/rcu/srcutree.c:100:6: note: 'levelspread[<U7c80>]' 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/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/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/tty/serial/8250/8250_core.c: In function 'univ8250_release_irq': /kisskb/src/drivers/tty/serial/8250/8250_core.c:247:18: warning: 'i' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/tty/serial/8250/8250_core.c:227:19: note: 'i' was declared here /kisskb/src/net/bridge/br_netlink.c: In function 'br_afspec': /kisskb/src/net/bridge/br_netlink.c:647:7: warning: 'err' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/net/tun.c: In function 'tun_get_user': /kisskb/src/drivers/net/tun.c:1823:30: warning: 'copylen' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/net/tun.c:1733:46: warning: 'linear' may be used uninitialized in this function [-Wuninitialized] INFO: Uncompressed kernel (size 0x4daff8) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0x500000) Image Name: Linux-4.20.0-gf460772291f8 Created: Sun Dec 30 15:33:30 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 2472258 Bytes = 2414.31 KiB = 2.36 MiB Load Address: 00000000 Entry Point: 00000000 Completed OK # rm -rf /kisskb/build/powerpc-fixes_83xx_kmeter1_defconfig_powerpc # Build took: 0:00:21.797452

© Michael Ellerman 2006-2018.