# 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-10.1.0-nolibc/sh4-linux/bin/sh4-linux-gcc --version
# < /opt/cross/kisskb/korg/gcc-10.1.0-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_se7619_defconfig_sh4-gcc10 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-10.1.0-nolibc/sh4-linux/bin/sh4-linux-  se7619_defconfig
# < make -s -j 80 ARCH=sh O=/kisskb/build/linus_se7619_defconfig_sh4-gcc10 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-10.1.0-nolibc/sh4-linux/bin/sh4-linux-  help
# make -s -j 80 ARCH=sh O=/kisskb/build/linus_se7619_defconfig_sh4-gcc10 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-10.1.0-nolibc/sh4-linux/bin/sh4-linux-  olddefconfig
# make -s -j 80 ARCH=sh O=/kisskb/build/linus_se7619_defconfig_sh4-gcc10 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-10.1.0-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/sh2/../../entry-common.S: Assembler messages:
/kisskb/src/arch/sh/kernel/cpu/sh2/../../entry-common.S:385: Warning: overflow in branch to syscall_exit_work; converted into longer instruction sequence
/kisskb/src/arch/sh/kernel/cpu/sh2/../../entry-common.S:388: Warning: overflow in branch to syscall_exit_work; converted into longer instruction sequence
In file included from /kisskb/src/arch/sh/include/asm/hw_irq.h:6,
                 from /kisskb/src/include/linux/irq.h:563,
                 from /kisskb/src/arch/sh/include/asm/hardirq.h:6,
                 from /kisskb/src/include/linux/hardirq.h:10,
                 from /kisskb/src/include/linux/interrupt.h:11,
                 from /kisskb/src/include/linux/serial_core.h:14,
                 from /kisskb/src/include/linux/serial_sci.h:6,
                 from /kisskb/src/arch/sh/kernel/cpu/sh2/setup-sh7619.c:11:
/kisskb/src/include/linux/sh_intc.h:100:63: warning: division 'sizeof (void *) / sizeof (void)' does not compute the number of array elements [-Wsizeof-pointer-div]
  100 | #define _INTC_ARRAY(a) a, __same_type(a, NULL) ? 0 : sizeof(a)/sizeof(*a)
      |                                                               ^
/kisskb/src/include/linux/sh_intc.h:105:24: note: in expansion of macro '_INTC_ARRAY'
  105 |  _INTC_ARRAY(vectors), _INTC_ARRAY(groups), \
      |                        ^~~~~~~~~~~
/kisskb/src/include/linux/sh_intc.h:124:8: note: in expansion of macro 'INTC_HW_DESC'
  124 |  .hw = INTC_HW_DESC(vectors, groups, mask_regs,   \
      |        ^~~~~~~~~~~~
/kisskb/src/arch/sh/kernel/cpu/sh2/setup-sh7619.c:58:8: note: in expansion of macro 'DECLARE_INTC_DESC'
   58 | static DECLARE_INTC_DESC(intc_desc, "sh7619", vectors, NULL,
      |        ^~~~~~~~~~~~~~~~~
/kisskb/src/include/linux/sh_intc.h:100:63: warning: division 'sizeof (void *) / sizeof (void)' does not compute the number of array elements [-Wsizeof-pointer-div]
  100 | #define _INTC_ARRAY(a) a, __same_type(a, NULL) ? 0 : sizeof(a)/sizeof(*a)
      |                                                               ^
/kisskb/src/include/linux/sh_intc.h:106:2: note: in expansion of macro '_INTC_ARRAY'
  106 |  _INTC_ARRAY(mask_regs), _INTC_ARRAY(prio_regs), \
      |  ^~~~~~~~~~~
/kisskb/src/include/linux/sh_intc.h:124:8: note: in expansion of macro 'INTC_HW_DESC'
  124 |  .hw = INTC_HW_DESC(vectors, groups, mask_regs,   \
      |        ^~~~~~~~~~~~
/kisskb/src/arch/sh/kernel/cpu/sh2/setup-sh7619.c:58:8: note: in expansion of macro 'DECLARE_INTC_DESC'
   58 | static DECLARE_INTC_DESC(intc_desc, "sh7619", vectors, NULL,
      |        ^~~~~~~~~~~~~~~~~
/kisskb/src/include/linux/sh_intc.h:100:63: warning: division 'sizeof (void *) / sizeof (void)' does not compute the number of array elements [-Wsizeof-pointer-div]
  100 | #define _INTC_ARRAY(a) a, __same_type(a, NULL) ? 0 : sizeof(a)/sizeof(*a)
      |                                                               ^
/kisskb/src/include/linux/sh_intc.h:107:2: note: in expansion of macro '_INTC_ARRAY'
  107 |  _INTC_ARRAY(sense_regs), _INTC_ARRAY(ack_regs), \
      |  ^~~~~~~~~~~
/kisskb/src/include/linux/sh_intc.h:124:8: note: in expansion of macro 'INTC_HW_DESC'
  124 |  .hw = INTC_HW_DESC(vectors, groups, mask_regs,   \
      |        ^~~~~~~~~~~~
/kisskb/src/arch/sh/kernel/cpu/sh2/setup-sh7619.c:58:8: note: in expansion of macro 'DECLARE_INTC_DESC'
   58 | static DECLARE_INTC_DESC(intc_desc, "sh7619", vectors, NULL,
      |        ^~~~~~~~~~~~~~~~~
/kisskb/src/include/linux/sh_intc.h:100:63: warning: division 'sizeof (void *) / sizeof (void)' does not compute the number of array elements [-Wsizeof-pointer-div]
  100 | #define _INTC_ARRAY(a) a, __same_type(a, NULL) ? 0 : sizeof(a)/sizeof(*a)
      |                                                               ^
/kisskb/src/include/linux/sh_intc.h:107:27: note: in expansion of macro '_INTC_ARRAY'
  107 |  _INTC_ARRAY(sense_regs), _INTC_ARRAY(ack_regs), \
      |                           ^~~~~~~~~~~
/kisskb/src/include/linux/sh_intc.h:124:8: note: in expansion of macro 'INTC_HW_DESC'
  124 |  .hw = INTC_HW_DESC(vectors, groups, mask_regs,   \
      |        ^~~~~~~~~~~~
/kisskb/src/arch/sh/kernel/cpu/sh2/setup-sh7619.c:58:8: note: in expansion of macro 'DECLARE_INTC_DESC'
   58 | static DECLARE_INTC_DESC(intc_desc, "sh7619", vectors, NULL,
      |        ^~~~~~~~~~~~~~~~~
/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 [-Wdiscarded-qualifiers]
   41 |  return ioread8(addr);
      |                 ^~~~
In file included from /kisskb/src/arch/sh/include/asm/io.h:21,
                 from /kisskb/src/include/linux/io.h:13,
                 from /kisskb/src/drivers/sh/clk/cpg.c:14:
/kisskb/src/include/asm-generic/iomap.h:29:29: note: expected 'void *' but argument is of type 'const void *'
   29 | 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 [-Wdiscarded-qualifiers]
   46 |  return ioread16(addr);
      |                  ^~~~
In file included from /kisskb/src/arch/sh/include/asm/io.h:21,
                 from /kisskb/src/include/linux/io.h:13,
                 from /kisskb/src/drivers/sh/clk/cpg.c:14:
/kisskb/src/include/asm-generic/iomap.h:30:30: note: expected 'void *' but argument is of type 'const void *'
   30 | 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 [-Wdiscarded-qualifiers]
   51 |  return ioread32(addr);
      |                  ^~~~
In file included from /kisskb/src/arch/sh/include/asm/io.h:21,
                 from /kisskb/src/include/linux/io.h:13,
                 from /kisskb/src/drivers/sh/clk/cpg.c:14:
/kisskb/src/include/asm-generic/iomap.h:32:30: note: expected 'void *' but argument is of type 'const void *'
   32 | extern unsigned int ioread32(void __iomem *);
      |                              ^~~~~~~~~~~~~~
Completed OK
# rm -rf /kisskb/build/linus_se7619_defconfig_sh4-gcc10
# Build took: 0:00:30.875359