# git rev-parse -q --verify 7100e8704b61247649c50551b965e71d168df30b^{commit}
7100e8704b61247649c50551b965e71d168df30b
already have revision, skipping fetch
# git checkout -q -f -B kisskb 7100e8704b61247649c50551b965e71d168df30b
# git clean -qxdf
# < git log -1
# commit 7100e8704b61247649c50551b965e71d168df30b
# Author: Nicholas Piggin <npiggin@gmail.com>
# Date:   Fri Mar 29 17:42:57 2019 +1000
# 
#     powerpc/64s/radix: Fix radix segment exception handling
#     
#     Commit 48e7b76957 ("powerpc/64s/hash: Convert SLB miss handlers to C")
#     broke the radix-mode segment exception handler. In radix mode, this is
#     exception is not an SLB miss, rather it signals that the EA is outside
#     the range translated by any page table.
#     
#     The commit lost the radix feature alternate code patch, which can
#     cause faults to some EAs to kernel BUG at arch/powerpc/mm/slb.c:639!
#     
#     The original radix code would send faults to slb_miss_large_addr,
#     which would end up faulting due to slb_addr_limit being 0. This patch
#     sends radix directly to do_bad_slb_fault, which is a bit clearer.
#     
#     Fixes: 48e7b7695745 ("powerpc/64s/hash: Convert SLB miss handlers to C")
#     Cc: stable@vger.kernel.org # v4.20+
#     Reported-by: Anton Blanchard <anton@samba.org>
#     Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
#     Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
# < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version
# < git log --format=%s --max-count=1 7100e8704b61247649c50551b965e71d168df30b
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_44x_currituck_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  44x/currituck_defconfig
# make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_44x_currituck_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
<stdin>:1478:2: warning: #warning syscall pidfd_send_signal not implemented [-Wcpp]
<stdin>:1481:2: warning: #warning syscall io_uring_setup not implemented [-Wcpp]
<stdin>:1484:2: warning: #warning syscall io_uring_enter not implemented [-Wcpp]
<stdin>:1487:2: warning: #warning syscall io_uring_register not implemented [-Wcpp]
In file included from /kisskb/src/include/linux/printk.h:7:0,
                 from /kisskb/src/include/linux/kernel.h:15,
                 from /kisskb/src/include/linux/fs_context.h:15,
                 from /kisskb/src/fs/fs_parser.c:13:
/kisskb/src/fs/fs_parser.c: In function 'fs_validate_description':
/kisskb/src/include/linux/kern_levels.h:5:18: warning: format '%lu' expects argument of type 'long unsigned int', but argument 3 has type 'int' [-Wformat=]
 #define KERN_SOH "\001"  /* ASCII Start Of Header */
                  ^
/kisskb/src/include/linux/kern_levels.h:11:18: note: in expansion of macro 'KERN_SOH'
 #define KERN_ERR KERN_SOH "3" /* error conditions */
                  ^
/kisskb/src/include/linux/printk.h:302:9: note: in expansion of macro 'KERN_ERR'
  printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
         ^
/kisskb/src/fs/fs_parser.c:413:6: note: in expansion of macro 'pr_err'
      pr_err("VALIDATE %s: e[%lu] enum val for %s\n",
      ^
/kisskb/src/net/sunrpc/xprtsock.c: In function 'xs_stream_data_receive_workfn':
/kisskb/src/net/sunrpc/xprtsock.c:498:15: warning: 'read' may be used uninitialized in this function [-Wmaybe-uninitialized]
  size_t want, read;
               ^
/kisskb/src/net/sunrpc/xprtsock.c:529:9: warning: 'ret' may be used uninitialized in this function [-Wmaybe-uninitialized]
  return ret < 0 ? ret : read;
         ^
/kisskb/src/net/sunrpc/xprtsock.c:499:10: note: 'ret' was declared here
  ssize_t ret;
          ^
/kisskb/src/arch/powerpc/boot/dts/currituck.dts:125.28-161.5: Warning (pci_bridge): /plb/pciex@10100000000: node name is not "pci" or "pcie"
/kisskb/src/arch/powerpc/boot/dts/currituck.dts:163.28-198.5: Warning (pci_bridge): /plb/pciex@30100000000: node name is not "pci" or "pcie"
/kisskb/src/arch/powerpc/boot/dts/currituck.dts:200.28-235.5: Warning (pci_bridge): /plb/pciex@38100000000: node name is not "pci" or "pcie"
arch/powerpc/boot/dts/currituck.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge'
Completed OK
# rm -rf /kisskb/build/powerpc-fixes_44x_currituck_defconfig_powerpc-gcc5
# Build took: 0:01:05.432493