Commit 9e62ccec authored Mar 20, 2020 by Michal Suchanek Committed by Michael Ellerman Apr 03, 2020

powerpc: Add back __ARCH_WANT_SYS_LLSEEK macro

This partially reverts commit caf6f9c8 ("asm-generic: Remove
unneeded __ARCH_WANT_SYS_LLSEEK macro")

When CONFIG_COMPAT is disabled on ppc64 the kernel does not build.

There is resistance to both removing the llseek syscall from the 64bit
syscall tables and building the llseek interface unconditionally.

Signed-off-by: Michal Suchanek <msuchanek@suse.de>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/lkml/20190828151552.GA16855@infradead.org/
Link: https://lore.kernel.org/lkml/20190829214319.498c7de2@naga/
Link: https://lore.kernel.org/r/dd4575c51e31766e87f7e7fa121d099ab78d3290.1584699455.git.msuchanek@suse.de

parent d3883fa0

arch/powerpc/include/asm/unistd.h

+1 −0

Original line number	Diff line number	Diff line
		@@ -31,6 +31,7 @@
		#define __ARCH_WANT_SYS_SOCKETCALL
		#define __ARCH_WANT_SYS_FADVISE64
		#define __ARCH_WANT_SYS_GETPGRP
		#define __ARCH_WANT_SYS_LLSEEK
		#define __ARCH_WANT_SYS_NICE
		#define __ARCH_WANT_SYS_OLD_GETRLIMIT
		#define __ARCH_WANT_SYS_OLD_UNAME

+2 −1

Original line number	Diff line number	Diff line
		@@ -331,7 +331,8 @@ COMPAT_SYSCALL_DEFINE3(lseek, unsigned int, fd, compat_off_t, offset, unsigned i
		}
		#endif

		#if !defined(CONFIG_64BIT) \|\| defined(CONFIG_COMPAT)
		#if !defined(CONFIG_64BIT) \|\| defined(CONFIG_COMPAT) \|\| \
		defined(__ARCH_WANT_SYS_LLSEEK)
		SYSCALL_DEFINE5(llseek, unsigned int, fd, unsigned long, offset_high,
		unsigned long, offset_low, loff_t __user *, result,
		unsigned int, whence)