# 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 80 ARCH=powerpc O=/kisskb/build/powerpc-next_ppc32_allmodconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  ppc32_allmodconfig
# make -s -j 80 ARCH=powerpc O=/kisskb/build/powerpc-next_ppc32_allmodconfig_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/arch/powerpc/mm/dump_linuxpagetables.c: In function 'populate_markers':
/kisskb/src/arch/powerpc/mm/dump_linuxpagetables.c:456:39: error: 'PKMAP_BASE' undeclared (first use in this function)
/kisskb/src/arch/powerpc/mm/dump_linuxpagetables.c:456:39: note: each undeclared identifier is reported only once for each function it appears in
/kisskb/src/arch/powerpc/mm/dump_linuxpagetables.c:464:2: error: implicit declaration of function 'PKMAP_ADDR' [-Werror=implicit-function-declaration]
/kisskb/src/arch/powerpc/mm/dump_linuxpagetables.c:464:50: error: 'LAST_PKMAP' undeclared (first use in this function)
cc1: some warnings being treated as errors
/kisskb/src/scripts/Makefile.build:317: recipe for target 'arch/powerpc/mm/dump_linuxpagetables.o' failed
make[2]: *** [arch/powerpc/mm/dump_linuxpagetables.o] Error 1
make[2]: *** Waiting for unfinished jobs....
/kisskb/src/Makefile:1034: recipe for target 'arch/powerpc/mm' failed
make[1]: *** [arch/powerpc/mm] Error 2
make[1]: *** Waiting for unfinished jobs....
/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/fs/afs/dynroot.c: In function 'afs_lookup_atcell':
/kisskb/src/fs/afs/dynroot.c:126:6: warning: 'len' 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/rcu/srcutree.c: In function 'init_srcu_struct_nodes':
/kisskb/src/kernel/rcu/srcutree.c:146:32: warning: 'levelspread[<U6780>]' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/btrfs/ref-verify.c: In function 'process_extent_item.isra.0':
/kisskb/src/fs/btrfs/ref-verify.c:503:2: warning: 'ret' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/btrfs/ref-verify.c: In function 'process_leaf':
/kisskb/src/fs/btrfs/ref-verify.c:555:2: warning: 'ret' may be used uninitialized in this function [-Wuninitialized]
/kisskb/src/fs/f2fs/file.c: In function 'f2fs_precache_extents':
/kisskb/src/fs/f2fs/file.c:2823:6: warning: 'err' 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/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]
make[1]: *** wait: No child processes.  Stop.
Makefile:146: recipe for target 'sub-make' failed
make: *** [sub-make] Error 2
Command 'make -s -j 80 ARCH=powerpc O=/kisskb/build/powerpc-next_ppc32_allmodconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-  ' returned non-zero exit status 2
# rm -rf /kisskb/build/powerpc-next_ppc32_allmodconfig_powerpc
# Build took: 0:01:18.627826