# 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/ia64-linux/bin/ia64-linux-gcc --version
# < git log --format=%s --max-count=1 0f52b3a00c789569d7ed822b5a6b30f59a8d4393
# < make -s -j 48 ARCH=ia64 O=/kisskb/build/powerpc-next_ia64-defconfig_ia64 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/ia64-linux/bin/ia64-linux-  defconfig
# make -s -j 48 ARCH=ia64 O=/kisskb/build/powerpc-next_ia64-defconfig_ia64 CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/ia64-linux/bin/ia64-linux-  
/kisskb/src/net/Makefile:24: CC cannot link executables. Skipping bpfilter.
<stdin>:1185:2: warning: #warning syscall perf_event_open not implemented [-Wcpp]
<stdin>:1239:2: warning: #warning syscall seccomp not implemented [-Wcpp]
<stdin>:1317:2: warning: #warning syscall pkey_mprotect not implemented [-Wcpp]
<stdin>:1320:2: warning: #warning syscall pkey_alloc not implemented [-Wcpp]
<stdin>:1323:2: warning: #warning syscall pkey_free not implemented [-Wcpp]
<stdin>:1326:2: warning: #warning syscall statx not implemented [-Wcpp]
<stdin>:1332:2: warning: #warning syscall io_pgetevents not implemented [-Wcpp]
<stdin>:1335:2: warning: #warning syscall rseq not implemented [-Wcpp]
/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/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/fork.c:700:13: warning: 'task_struct_whitelist' defined but not used [-Wunused-function]
/kisskb/src/mm/vmstat.c: In function 'sysctl_vm_numa_stat_handler':
/kisskb/src/mm/vmstat.c:89:5: warning: 'oldval' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/net/Makefile:24: CC cannot link executables. Skipping bpfilter.
/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/dma-buf/reservation.c: In function 'reservation_object_add_shared_fence':
/kisskb/src/drivers/dma-buf/reservation.c:207:2: warning: 'k' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/drivers/dma-buf/reservation.c:160:17: note: 'k' was declared here
/kisskb/src/fs/nfsd/nfs4xdr.c: In function 'nfsd4_encode_components_esc':
/kisskb/src/fs/nfsd/nfs4xdr.c:2046:9: warning: 'str' 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:339:21: note: 'pdeo' was declared here
/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]
No errors detected in 21106 functions.
  Kernel: vmlinux.gz is ready
Completed OK
# rm -rf /kisskb/build/powerpc-next_ia64-defconfig_ia64
# Build took: 0:01:53.768046