# git rev-parse -q --verify 932bba9c9c94d08fe4c8075bf55cafa0a5c16e2b^{commit}
932bba9c9c94d08fe4c8075bf55cafa0a5c16e2b
already have revision, skipping fetch
# git checkout -q -f -B kisskb 932bba9c9c94d08fe4c8075bf55cafa0a5c16e2b
# git clean -qxdf
# < git log -1
# commit 932bba9c9c94d08fe4c8075bf55cafa0a5c16e2b
# Author: Christophe Leroy <christophe.leroy@c-s.fr>
# Date:   Wed Jan 22 17:52:50 2020 +0000
# 
#     powerpc/32s: Drop NULL addr verification
#     
#     NULL addr is a user address. Don't waste time checking it. If
#     someone tries to access it, it will SIGFAULT the same way as for
#     address 1, so no need to make it special.
#     
#     The special case is when not doing a write, in that case we want
#     to drop the entire function. This is now handled by 'dir' param
#     and not by the nulity of 'to' anymore.
#     
#     Also make beginning of prevent_user_access() similar
#     to beginning of allow_user_access(), and tell the compiler
#     that writing in kernel space or with a 0 length is unlikely
#     
#     Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
#     Link: https://lore.kernel.org/r/d79cb9f680f4e971e05262303103a4b94baa91ce.1579715466.git.christophe.leroy@c-s.fr
# < /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 932bba9c9c94d08fe4c8075bf55cafa0a5c16e2b
# < make -s -j 32 ARCH=powerpc O=/kisskb/build/powerpc-next_44x_katmai_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  44x/katmai_defconfig
# make -s -j 32 ARCH=powerpc O=/kisskb/build/powerpc-next_44x_katmai_defconfig_powerpc-gcc4.6 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  
/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/tty/serial/8250/8250_core.c: In function 'univ8250_release_irq':
/kisskb/src/drivers/tty/serial/8250/8250_core.c:248:18: warning: 'i' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/tty/serial/8250/8250_core.c:228:19: note: 'i' was declared here
/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/arch/powerpc/boot/dts/katmai.dts:322.26-361.5: Warning (pci_bridge): /plb/pciex@d00000000: node name is not "pci" or "pcie"
/kisskb/src/arch/powerpc/boot/dts/katmai.dts:363.26-402.5: Warning (pci_bridge): /plb/pciex@d20000000: node name is not "pci" or "pcie"
/kisskb/src/arch/powerpc/boot/dts/katmai.dts:404.26-443.5: Warning (pci_bridge): /plb/pciex@d40000000: node name is not "pci" or "pcie"
arch/powerpc/boot/dts/katmai.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge'
INFO: Uncompressed kernel (size 0x44db70) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x500000)
Image Name:   Linux-5.5.0-rc5-g932bba9c9c94
Created:      Fri Jan 24 04:01:11 2020
Image Type:   PowerPC Linux Kernel Image (gzip compressed)
Data Size:    2179944 Bytes = 2128.85 KiB = 2.08 MiB
Load Address: 00500000
Entry Point:  005014c0
Completed OK
# rm -rf /kisskb/build/powerpc-next_44x_katmai_defconfig_powerpc-gcc4.6
# Build took: 0:00:37.260891