# git gc
# git rev-parse -q --verify 5ad0e6cf98ac177bdc3d162dda4af5253b0f0d78^{commit}
# git fetch -q -n -f git://gitlab.ozlabs.ibm.com/linuxppc/linux.git next-test
# git rev-parse -q --verify 5ad0e6cf98ac177bdc3d162dda4af5253b0f0d78^{commit}
5ad0e6cf98ac177bdc3d162dda4af5253b0f0d78
# git checkout -q -f -B kisskb 5ad0e6cf98ac177bdc3d162dda4af5253b0f0d78
# git clean -qxdf
# < git log -1
# commit 5ad0e6cf98ac177bdc3d162dda4af5253b0f0d78
# Author: Christophe Leroy <christophe.leroy@csgroup.eu>
# Date:   Fri Mar 19 06:34:43 2021 +0000
# 
#     powerpc/irq: Inline call_do_irq() and call_do_softirq()
#     
#     call_do_irq() and call_do_softirq() are simple enough to be
#     worth inlining.
#     
#     Inlining them avoids an mflr/mtlr pair plus a save/reload on stack. It
#     also allows GCC to keep the saved ksp_limit in an nonvolatile reg.
#     
#     This is inspired from S390 arch. Several other arches do more or
#     less the same. The way sparc arch does seems odd thought.
#     
#     Signed-off-by: Christophe Leroy <christophe.leroy@csgroup.eu>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
#     ---
#     
#     v2: no change.
#     v3: no change.
#     v4:
#     - comment reminding the purpose of the inline asm block.
#     - added r2 as clobbered reg
#     v5:
#     - Limiting the change to PPC32 for now.
#     - removed r2 from the clobbered regs list (on PPC32 r2 points to current all the time)
#     - Removed patch 1 and merged ksp_limit handling in here.
#     v6:
#     - Rebase on top of merge-test (ca6e327fefb2).
#     - Remove the ksp_limit stuff as it's doesn't exist anymore.
#     
#     v7:
#     mpe:
#     - Enable for 64-bit too. This all in-kernel code calling in-kernel
#       code, and must use the kernel TOC.
#     - Use named parameters for the inline asm.
#     - Reformat inline asm.
#     - Mark as always_inline.
#     - Drop unused ret from call_do_softirq(), add r3 as clobbered.
# < /opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-gcc --version
# < /opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-ld --version
# < git log --format=%s --max-count=1 5ad0e6cf98ac177bdc3d162dda4af5253b0f0d78
# < make -s -j 24 ARCH=sparc64 O=/kisskb/build/powerpc-next_sparc64-defconfig_sparc64 CROSS_COMPILE=/opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-  defconfig
arch/sparc/configs/sparc64_defconfig:237:warning: override: reassigning to symbol ATA
arch/sparc/configs/sparc64_defconfig:239:warning: override: reassigning to symbol HAPPYMEAL
# < make -s -j 24 ARCH=sparc64 O=/kisskb/build/powerpc-next_sparc64-defconfig_sparc64 CROSS_COMPILE=/opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-  help
# make -s -j 24 ARCH=sparc64 O=/kisskb/build/powerpc-next_sparc64-defconfig_sparc64 CROSS_COMPILE=/opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-  olddefconfig
# make -s -j 24 ARCH=sparc64 O=/kisskb/build/powerpc-next_sparc64-defconfig_sparc64 CROSS_COMPILE=/opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-  
<stdin>:1511:2: warning: #warning syscall clone3 not implemented [-Wcpp]
WARNING: modpost: EXPORT symbol "_mcount" [vmlinux] version generation failed, symbol will not be versioned.
  kernel: arch/sparc/boot/image is ready
  kernel: arch/sparc/boot/zImage is ready
Completed OK
# rm -rf /kisskb/build/powerpc-next_sparc64-defconfig_sparc64
# Build took: 0:06:17.284793