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| author | Arnd Bergmann <arnd@arndb.de> | 2018-04-13 12:57:26 +0200 |
|---|---|---|
| committer | Arnd Bergmann <arnd@arndb.de> | 2018-08-29 15:42:21 +0200 |
| commit | caf6f9c8a326cffd1d4b3ff3f1cfba75d159d70b (patch) | |
| tree | fa0e60247e82d051fef5a30f55ccbb42d7fe332e /include/asm-generic | |
| parent | asm-generic: Move common compat types to asm-generic/compat.h (diff) | |
| download | linux-caf6f9c8a326cffd1d4b3ff3f1cfba75d159d70b.tar.xz linux-caf6f9c8a326cffd1d4b3ff3f1cfba75d159d70b.zip | |
asm-generic: Remove unneeded __ARCH_WANT_SYS_LLSEEK macro
The sys_llseek sytem call is needed on all 32-bit architectures and
none of the 64-bit ones, so we can remove the __ARCH_WANT_SYS_LLSEEK guard
and simplify the include/asm-generic/unistd.h header further.
Since 32-bit tasks can run either natively or in compat mode on 64-bit
architectures, we have to check for both !CONFIG_64BIT and CONFIG_COMPAT.
There are a few 64-bit architectures that also reference sys_llseek
in their 64-bit ABI (e.g. sparc), but I verified that those all
select CONFIG_COMPAT, so the #if check is still correct here. It's
a bit odd to include it in the syscall table though, as it's the
same as sys_lseek() on 64-bit, but with strange calling conventions.
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Diffstat (limited to 'include/asm-generic')
| -rw-r--r-- | include/asm-generic/unistd.h | 9 |
1 files changed, 0 insertions, 9 deletions
diff --git a/include/asm-generic/unistd.h b/include/asm-generic/unistd.h index ea74eca8463f..71d2fcf9dbcd 100644 --- a/include/asm-generic/unistd.h +++ b/include/asm-generic/unistd.h @@ -1,12 +1,3 @@ /* SPDX-License-Identifier: GPL-2.0 */ #include <uapi/asm-generic/unistd.h> #include <linux/export.h> - -/* - * These are required system calls, we should - * invert the logic eventually and let them - * be selected by default. - */ -#if __BITS_PER_LONG == 32 -#define __ARCH_WANT_SYS_LLSEEK -#endif |