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Tiezhu Yang 42077fef30 asm-generic: Unify uapi bitsperlong.h for arm64, riscv and loongarch 
[ Upstream commit 8386f58f8d ]

Now we specify the minimal version of GCC as 5.1 and Clang/LLVM as 11.0.0
in Documentation/process/changes.rst, __CHAR_BIT__ and __SIZEOF_LONG__ are
usable, it is probably fine to unify the definition of __BITS_PER_LONG as
(__CHAR_BIT__ * __SIZEOF_LONG__) in asm-generic uapi bitsperlong.h.

In order to keep safe and avoid regression, only unify uapi bitsperlong.h
for some archs such as arm64, riscv and loongarch which are using newer
toolchains that have the definitions of __CHAR_BIT__ and __SIZEOF_LONG__.

Suggested-by: Xi Ruoyao <xry111@xry111.site>
Link: https://lore.kernel.org/all/d3e255e4746de44c9903c4433616d44ffcf18d1b.camel@xry111.site/
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Link: https://lore.kernel.org/linux-arch/a3a4f48a-07d4-4ed9-bc53-5d383428bdd2@app.fastmail.com/
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2025-12-07 06:12:34 +09:00
..
bitsperlong.h asm-generic: Unify uapi bitsperlong.h for arm64, riscv and loongarch 2025-12-07 06:12:34 +09:00
bpf_perf_event.h libbpf: Add ARC support to bpf_tracing.h 2022-04-10 18:53:37 -07:00
errno.h tools/include/uapi: Fix <asm/errno.h> for parisc and xtensa 2022-09-13 14:04:35 +02:00