# 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-4.9.4-nolibc/sh4-linux/bin/sh4-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-4.9.4-nolibc/sh4-linux/bin/sh4-linux-ld --version
# < git log --format=%s --max-count=1 1c9df907da83812e4f33b59d3d142c864d9da57f
# < make -s -j 80 ARCH=sh O=/kisskb/build/linus_rsk7201_defconfig_sh4-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/sh4-linux/bin/sh4-linux-  rsk7201_defconfig
# < make -s -j 80 ARCH=sh O=/kisskb/build/linus_rsk7201_defconfig_sh4-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/sh4-linux/bin/sh4-linux-  help
# make -s -j 80 ARCH=sh O=/kisskb/build/linus_rsk7201_defconfig_sh4-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/sh4-linux/bin/sh4-linux-  olddefconfig
# make -s -j 80 ARCH=sh O=/kisskb/build/linus_rsk7201_defconfig_sh4-gcc4.9 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-4.9.4-nolibc/sh4-linux/bin/sh4-linux-  
  Generating include/generated/machtypes.h
<stdin>:1511:2: warning: #warning syscall clone3 not implemented [-Wcpp]
/kisskb/src/arch/sh/kernel/cpu/sh2a/../../entry-common.S: Assembler messages:
/kisskb/src/arch/sh/kernel/cpu/sh2a/../../entry-common.S:385: Warning: overflow in branch to syscall_exit_work; converted into longer instruction sequence
/kisskb/src/arch/sh/kernel/cpu/sh2a/../../entry-common.S:388: Warning: overflow in branch to syscall_exit_work; converted into longer instruction sequence
/kisskb/src/drivers/sh/clk/cpg.c: In function 'r8':
/kisskb/src/drivers/sh/clk/cpg.c:41:17: warning: passing argument 1 of 'ioread8' discards 'const' qualifier from pointer target type
  return ioread8(addr);
                 ^
In file included from /kisskb/src/arch/sh/include/asm/io.h:21:0,
                 from /kisskb/src/include/linux/io.h:13,
                 from /kisskb/src/drivers/sh/clk/cpg.c:14:
/kisskb/src/include/asm-generic/iomap.h:29:21: note: expected 'void *' but argument is of type 'const void *'
 extern unsigned int ioread8(void __iomem *);
                     ^
/kisskb/src/drivers/sh/clk/cpg.c: In function 'r16':
/kisskb/src/drivers/sh/clk/cpg.c:46:18: warning: passing argument 1 of 'ioread16' discards 'const' qualifier from pointer target type
  return ioread16(addr);
                  ^
In file included from /kisskb/src/arch/sh/include/asm/io.h:21:0,
                 from /kisskb/src/include/linux/io.h:13,
                 from /kisskb/src/drivers/sh/clk/cpg.c:14:
/kisskb/src/include/asm-generic/iomap.h:30:21: note: expected 'void *' but argument is of type 'const void *'
 extern unsigned int ioread16(void __iomem *);
                     ^
/kisskb/src/drivers/sh/clk/cpg.c: In function 'r32':
/kisskb/src/drivers/sh/clk/cpg.c:51:18: warning: passing argument 1 of 'ioread32' discards 'const' qualifier from pointer target type
  return ioread32(addr);
                  ^
In file included from /kisskb/src/arch/sh/include/asm/io.h:21:0,
                 from /kisskb/src/include/linux/io.h:13,
                 from /kisskb/src/drivers/sh/clk/cpg.c:14:
/kisskb/src/include/asm-generic/iomap.h:32:21: note: expected 'void *' but argument is of type 'const void *'
 extern unsigned int ioread32(void __iomem *);
                     ^
Image Name:   Linux-5.8.0-rc7+
Created:      Fri Jul 31 05:18:09 2020
Image Type:   SuperH Linux Kernel Image (gzip compressed)
Data Size:    1637364 Bytes = 1598.99 KiB = 1.56 MiB
Load Address: 08001000
Entry Point:  08002000
  Image arch/sh/boot/uImage is ready
Completed OK
# rm -rf /kisskb/build/linus_rsk7201_defconfig_sh4-gcc4.9
# Build took: 0:00:29.401664