# git rev-parse -q --verify 29c395c77a9a514c5857c45ceae2665e9bd99ac7^{commit}
29c395c77a9a514c5857c45ceae2665e9bd99ac7
already have revision, skipping fetch
# git checkout -q -f -B kisskb 29c395c77a9a514c5857c45ceae2665e9bd99ac7
# git clean -qxdf
# < git log -1
# commit 29c395c77a9a514c5857c45ceae2665e9bd99ac7
# Merge: 4c48faba5b7f 724c8a23d589
# Author: Linus Torvalds <torvalds@linux-foundation.org>
# Date:   Wed Feb 24 16:32:23 2021 -0800
# 
#     Merge tag 'x86-entry-2021-02-24' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
#     
#     Pull x86 irq entry updates from Thomas Gleixner:
#      "The irq stack switching was moved out of the ASM entry code in course
#       of the entry code consolidation. It ended up being suboptimal in
#       various ways.
#     
#       This reworks the X86 irq stack handling:
#     
#        - Make the stack switching inline so the stackpointer manipulation is
#          not longer at an easy to find place.
#     
#        - Get rid of the unnecessary indirect call.
#     
#        - Avoid the double stack switching in interrupt return and reuse the
#          interrupt stack for softirq handling.
#     
#        - A objtool fix for CONFIG_FRAME_POINTER=y builds where it got
#          confused about the stack pointer manipulation"
#     
#     * tag 'x86-entry-2021-02-24' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
#       objtool: Fix stack-swizzle for FRAME_POINTER=y
#       um: Enforce the usage of asm-generic/softirq_stack.h
#       x86/softirq/64: Inline do_softirq_own_stack()
#       softirq: Move do_softirq_own_stack() to generic asm header
#       softirq: Move __ARCH_HAS_DO_SOFTIRQ to Kconfig
#       x86: Select CONFIG_HAVE_IRQ_EXIT_ON_IRQ_STACK
#       x86/softirq: Remove indirection in do_softirq_own_stack()
#       x86/entry: Use run_sysvec_on_irqstack_cond() for XEN upcall
#       x86/entry: Convert device interrupts to inline stack switching
#       x86/entry: Convert system vectors to irq stack macro
#       x86/irq: Provide macro for inlining irq stack switching
#       x86/apic: Split out spurious handling code
#       x86/irq/64: Adjust the per CPU irq stack pointer by 8
#       x86/irq: Sanitize irq stack tracking
#       x86/entry: Fix instrumentation annotation
# < /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 29c395c77a9a514c5857c45ceae2665e9bd99ac7
# < make -s -j 24 ARCH=sparc64 O=/kisskb/build/linus_sparc64-allnoconfig_sparc64 CROSS_COMPILE=/opt/cross/kisskb/br-sparc64-full-2016.08-613-ge98b4dd/bin/sparc64-linux-  allnoconfig
# < make -s -j 24 ARCH=sparc64 O=/kisskb/build/linus_sparc64-allnoconfig_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/linus_sparc64-allnoconfig_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/linus_sparc64-allnoconfig_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]
  kernel: arch/sparc/boot/image is ready
  kernel: arch/sparc/boot/zImage is ready
Completed OK
# rm -rf /kisskb/build/linus_sparc64-allnoconfig_sparc64
# Build took: 0:00:19.882622