630f289b71
Change a header to mandatory-y if both of the following are met:
[1] At least one architecture (except um) specifies it as generic-y in
arch/*/include/asm/Kbuild
[2] Every architecture (except um) either has its own implementation
(arch/*/include/asm/*.h) or specifies it as generic-y in
arch/*/include/asm/Kbuild
This commit was generated by the following shell script.
----------------------------------->8-----------------------------------
arches=$(cd arch; ls -1 | sed -e '/Kconfig/d' -e '/um/d')
tmpfile=$(mktemp)
grep "^mandatory-y +=" include/asm-generic/Kbuild > $tmpfile
find arch -path 'arch/*/include/asm/Kbuild' |
xargs sed -n 's/^generic-y += \(.*\)/\1/p' | sort -u |
while read header
do
mandatory=yes
for arch in $arches
do
if ! grep -q "generic-y += $header" arch/$arch/include/asm/Kbuild &&
! [ -f arch/$arch/include/asm/$header ]; then
mandatory=no
break
fi
done
if [ "$mandatory" = yes ]; then
echo "mandatory-y += $header" >> $tmpfile
for arch in $arches
do
sed -i "/generic-y += $header/d" arch/$arch/include/asm/Kbuild
done
fi
done
sed -i '/^mandatory-y +=/d' include/asm-generic/Kbuild
LANG=C sort $tmpfile >> include/asm-generic/Kbuild
----------------------------------->8-----------------------------------
One obvious benefit is the diff stat:
25 files changed, 52 insertions(+), 557 deletions(-)
It is tedious to list generic-y for each arch that needs it.
So, mandatory-y works like a fallback default (by just wrapping
asm-generic one) when arch does not have a specific header
implementation.
See the following commits:
def3f7cefe
a1b39bae16
It is tedious to convert headers one by one, so I processed by a shell
script.
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Cc: Michal Simek <michal.simek@xilinx.com>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Arnd Bergmann <arnd@arndb.de>
Link: http://lkml.kernel.org/r/20200210175452.5030-1-masahiroy@kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
62 lines
1.5 KiB
Makefile
62 lines
1.5 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0
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#
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# asm headers that all architectures except um should have
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# (This file is not included when SRCARCH=um since UML borrows several
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# asm headers from the host architecutre.)
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mandatory-y += atomic.h
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mandatory-y += barrier.h
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mandatory-y += bitops.h
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mandatory-y += bug.h
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mandatory-y += bugs.h
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mandatory-y += cacheflush.h
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mandatory-y += checksum.h
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mandatory-y += compat.h
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mandatory-y += current.h
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mandatory-y += delay.h
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mandatory-y += device.h
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mandatory-y += div64.h
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mandatory-y += dma-contiguous.h
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mandatory-y += dma-mapping.h
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mandatory-y += dma.h
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mandatory-y += emergency-restart.h
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mandatory-y += exec.h
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mandatory-y += fb.h
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mandatory-y += ftrace.h
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mandatory-y += futex.h
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mandatory-y += hardirq.h
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mandatory-y += hw_irq.h
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mandatory-y += io.h
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mandatory-y += irq.h
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mandatory-y += irq_regs.h
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mandatory-y += irq_work.h
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mandatory-y += kdebug.h
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mandatory-y += kmap_types.h
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mandatory-y += kprobes.h
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mandatory-y += linkage.h
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mandatory-y += local.h
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mandatory-y += mm-arch-hooks.h
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mandatory-y += mmiowb.h
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mandatory-y += mmu.h
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mandatory-y += mmu_context.h
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mandatory-y += module.h
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mandatory-y += msi.h
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mandatory-y += pci.h
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mandatory-y += percpu.h
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mandatory-y += pgalloc.h
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mandatory-y += preempt.h
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mandatory-y += sections.h
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mandatory-y += serial.h
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mandatory-y += shmparam.h
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mandatory-y += simd.h
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mandatory-y += switch_to.h
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mandatory-y += timex.h
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mandatory-y += tlbflush.h
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mandatory-y += topology.h
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mandatory-y += trace_clock.h
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mandatory-y += uaccess.h
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mandatory-y += unaligned.h
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mandatory-y += vga.h
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mandatory-y += word-at-a-time.h
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mandatory-y += xor.h
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