# git rev-parse -q --verify 1c9df907da83812e4f33b59d3d142c864d9da57f^{commit}
1c9df907da83812e4f33b59d3d142c864d9da57f
already have revision, skipping fetch
# git checkout -q -f -B kisskb 1c9df907da83812e4f33b59d3d142c864d9da57f
# git clean -qxdf
# < git log -1
# commit 1c9df907da83812e4f33b59d3d142c864d9da57f
# Author: Willy Tarreau <w@1wt.eu>
# Date:   Thu Jul 30 07:59:24 2020 +0200
# 
#     random: fix circular include dependency on arm64 after addition of percpu.h
#     
#     Daniel Díaz and Kees Cook independently reported that commit
#     f227e3ec3b5c ("random32: update the net random state on interrupt and
#     activity") broke arm64 due to a circular dependency on include files
#     since the addition of percpu.h in random.h.
#     
#     The correct fix would definitely be to move all the prandom32 stuff out
#     of random.h but for backporting, a smaller solution is preferred.
#     
#     This one replaces linux/percpu.h with asm/percpu.h, and this fixes the
#     problem on x86_64, arm64, arm, and mips.  Note that moving percpu.h
#     around didn't change anything and that removing it entirely broke
#     differently.  When backporting, such options might still be considered
#     if this patch fails to help.
#     
#     [ It turns out that an alternate fix seems to be to just remove the
#       troublesome <asm/pointer_auth.h> remove from the arm64 <asm/smp.h>
#       that causes the circular dependency.
#     
#       But we might as well do the whole belt-and-suspenders thing, and
#       minimize inclusion in <linux/random.h> too. Either will fix the
#       problem, and both are good changes.   - Linus ]
#     
#     Reported-by: Daniel Díaz <daniel.diaz@linaro.org>
#     Reported-by: Kees Cook <keescook@chromium.org>
#     Tested-by: Marc Zyngier <maz@kernel.org>
#     Fixes: f227e3ec3b5c
#     Cc: Stephen Rothwell <sfr@canb.auug.org.au>
#     Signed-off-by: Willy Tarreau <w@1wt.eu>
#     Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/m68k-linux/bin/m68k-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-8.1.0-nolibc/m68k-linux/bin/m68k-linux-ld --version
# < git log --format=%s --max-count=1 1c9df907da83812e4f33b59d3d142c864d9da57f
# < make -s -j 48 ARCH=m68k O=/kisskb/build/linus_m5272c3_defconfig_m68k-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/m68k-linux/bin/m68k-linux-  m5272c3_defconfig
# < make -s -j 48 ARCH=m68k O=/kisskb/build/linus_m5272c3_defconfig_m68k-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/m68k-linux/bin/m68k-linux-  help
# make -s -j 48 ARCH=m68k O=/kisskb/build/linus_m5272c3_defconfig_m68k-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/m68k-linux/bin/m68k-linux-  olddefconfig
# make -s -j 48 ARCH=m68k O=/kisskb/build/linus_m5272c3_defconfig_m68k-gcc8 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-8.1.0-nolibc/m68k-linux/bin/m68k-linux-  
/kisskb/src/drivers/net/ethernet/freescale/fec_main.c: In function 'fec_restart':
/kisskb/src/drivers/net/ethernet/freescale/fec_main.c:947:6: warning: unused variable 'val' [-Wunused-variable]
  u32 val;
      ^~~
/kisskb/src/drivers/net/ethernet/freescale/fec_main.c: In function 'fec_get_mac':
/kisskb/src/drivers/net/ethernet/freescale/fec_main.c:1665:28: warning: unused variable 'pdata' [-Wunused-variable]
  struct fec_platform_data *pdata = dev_get_platdata(&fep->pdev->dev);
                            ^~~~~
In file included from /kisskb/src/arch/m68k/include/asm/atomic.h:7,
                 from /kisskb/src/include/linux/atomic.h:7,
                 from /kisskb/src/include/linux/spinlock.h:460,
                 from /kisskb/src/include/linux/seqlock.h:36,
                 from /kisskb/src/include/linux/time.h:6,
                 from /kisskb/src/include/linux/stat.h:19,
                 from /kisskb/src/include/linux/module.h:13,
                 from /kisskb/src/net/core/filter.c:20:
/kisskb/src/net/core/filter.c: In function 'bpf_clear_redirect_map':
/kisskb/src/arch/m68k/include/asm/cmpxchg.h:137:3: warning: value computed is not used [-Wunused-value]
  ((__typeof__(*(ptr)))__cmpxchg_local_generic((ptr), (unsigned long)(o),\
  ~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    (unsigned long)(n), sizeof(*(ptr))))
    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
/kisskb/src/include/asm-generic/cmpxchg.h:106:28: note: in expansion of macro 'cmpxchg_local'
 #define cmpxchg(ptr, o, n) cmpxchg_local((ptr), (o), (n))
                            ^~~~~~~~~~~~~
/kisskb/src/net/core/filter.c:3569:4: note: in expansion of macro 'cmpxchg'
    cmpxchg(&ri->map, map, NULL);
    ^~~~~~~
Completed OK
# rm -rf /kisskb/build/linus_m5272c3_defconfig_m68k-gcc8
# Build took: 0:00:29.762831