# git rev-parse -q --verify 15ae5119c2dd05eb3f4de0c8f10ede7c95e4017b^{commit}
15ae5119c2dd05eb3f4de0c8f10ede7c95e4017b
already have revision, skipping fetch
# git checkout -q -f -B kisskb 15ae5119c2dd05eb3f4de0c8f10ede7c95e4017b
# git clean -qxdf
# < git log -1
# commit 15ae5119c2dd05eb3f4de0c8f10ede7c95e4017b
# Author: Frederic Barrat <fbarrat@linux.ibm.com>
# Date:   Mon Jan 13 14:01:18 2020 +0100
# 
#     powerpc/xive: Discard ESB load value when interrupt is invalid
#     
#     A load on an ESB page returning all 1's means that the underlying
#     device has invalidated the access to the PQ state of the interrupt
#     through mmio. It may happen, for example when querying a PHB interrupt
#     while the PHB is in an error state.
#     
#     In that case, we should consider the interrupt to be invalid when
#     checking its state in the irq_get_irqchip_state() handler.
#     
#     Fixes: da15c03b047d ("powerpc/xive: Implement get_irqchip_state method for XIVE to fix shutdown race")
#     Cc: stable@vger.kernel.org # v5.4+
#     Signed-off-by: Frederic Barrat <fbarrat@linux.ibm.com>
#     [clg: wrote a commit log, introduced XIVE_ESB_INVALID ]
#     Signed-off-by: Cédric Le Goater <clg@kaod.org>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
#     Link: https://lore.kernel.org/r/20200113130118.27969-1-clg@kaod.org
# < /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 15ae5119c2dd05eb3f4de0c8f10ede7c95e4017b
# < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_40x_obs600_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  40x/obs600_defconfig
# make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_40x_obs600_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-  
/kisskb/src/arch/powerpc/kernel/head_40x.S: Assembler messages:
/kisskb/src/arch/powerpc/kernel/head_40x.S:802: Warning: invalid register expression
INFO: Uncompressed kernel (size 0x4f4388) overlaps the address of the wrapper(0x400000)
INFO: Fixing the link_address of wrapper to (0x500000)
Image Name:   Linux-5.5.0-rc3-g15ae5119c2dd
Created:      Wed Jan 15 07:32:00 2020
Image Type:   PowerPC Linux Multi-File Image (gzip compressed)
Data Size:    2544414 Bytes = 2484.78 KiB = 2.43 MiB
Load Address: 00000000
Entry Point:  00000000
Contents:
   Image 0: 2537527 Bytes = 2478.05 KiB = 2.42 MiB
   Image 1: 2 Bytes = 0.00 KiB = 0.00 MiB
   Image 2: 6866 Bytes = 6.71 KiB = 0.01 MiB
Completed OK
# rm -rf /kisskb/build/powerpc-fixes_40x_obs600_defconfig_powerpc-gcc5
# Build took: 0:00:42.872076