# git rev-parse -q --verify 0f52b3a00c789569d7ed822b5a6b30f59a8d4393^{commit}
0f52b3a00c789569d7ed822b5a6b30f59a8d4393
already have revision, skipping fetch
# git checkout -q -f -B kisskb 0f52b3a00c789569d7ed822b5a6b30f59a8d4393
# git clean -qxdf
# < git log -1
# commit 0f52b3a00c789569d7ed822b5a6b30f59a8d4393
# Author: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>
# Date:   Thu Aug 23 10:26:08 2018 +0530
# 
#     powerpc/mce: Fix SLB rebolting during MCE recovery path.
#     
#     The commit e7e81847478 ("powerpc/64s: move machine check SLB flushing
#     to mm/slb.c") introduced a bug in reloading bolted SLB entries. Unused
#     bolted entries are stored with .esid=0 in the slb_shadow area, and
#     that value is now used directly as the RB input to slbmte, which means
#     the RB[52:63] index field is set to 0, which causes SLB entry 0 to be
#     cleared.
#     
#     Fix this by storing the index bits in the unused bolted entries, which
#     directs the slbmte to the right place.
#     
#     The SLB shadow area is also used by the hypervisor, but PAPR is okay
#     with that, from LoPAPR v1.1, 14.11.1.3 SLB Shadow Buffer:
#     
#       Note: SLB is filled sequentially starting at index 0
#       from the shadow buffer ignoring the contents of
#       RB field bits 52-63
#     
#     Fixes: e7e81847478b ("powerpc/64s: move machine check SLB flushing to mm/slb.c")
#     Signed-off-by: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>
#     Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
#     Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
# < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-gcc --version
# < git log --format=%s --max-count=1 0f52b3a00c789569d7ed822b5a6b30f59a8d4393
# < make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-next_cell_defconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  cell_defconfig
# make -s -j 120 ARCH=powerpc O=/kisskb/build/powerpc-next_cell_defconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  
/kisskb/src/net/Makefile:24: CC cannot link executables. Skipping bpfilter.
/kisskb/src/kernel/rcu/srcutree.c: In function 'init_srcu_struct_fields':
/kisskb/src/kernel/rcu/srcutree.c:146:32: warning: 'levelspread[<U8d20>]' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/kernel/rcu/srcutree.c:94:6: note: 'levelspread[<U8d20>]' was declared here
/kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl':
/kisskb/src/kernel/printk/printk.c:183:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/kernel/cgroup/cgroup-v1.c: In function 'cgroup1_mount':
/kisskb/src/kernel/cgroup/cgroup-v1.c:1256:20: warning: 'root' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/Makefile:24: CC cannot link executables. Skipping bpfilter.
/kisskb/src/drivers/base/regmap/regmap.c: In function 'regmap_raw_read':
/kisskb/src/drivers/base/regmap/regmap.c:2497:6: 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:1819:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/mm/hugetlb.c: In function 'alloc_pool_huge_page':
/kisskb/src/mm/hugetlb.c:1433:5: warning: 'page' 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:251:18: warning: 'i' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/tty/serial/8250/8250_core.c:231:19: note: 'i' was declared here
/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:339:21: note: 'pdeo' was declared here
/kisskb/src/drivers/net/tun.c: In function 'tun_get_user':
/kisskb/src/drivers/net/tun.c:1835:30: warning: 'copylen' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/net/tun.c:1745:46: warning: 'linear' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/udf/unicode.c: In function 'udf_name_conv_char':
/kisskb/src/fs/udf/unicode.c:132:8: warning: 'c' may be used uninitialized in this function [-Wuninitialized]
Completed OK
# rm -rf /kisskb/build/powerpc-next_cell_defconfig_powerpc
# Build took: 0:00:27.701208