diff mbox series

[v12,1/8] powerpc: Add back __ARCH_WANT_SYS_LLSEEK macro

Message ID dd4575c51e31766e87f7e7fa121d099ab78d3290.1584699455.git.msuchanek@suse.de (mailing list archive)
State Accepted
Commit 9e62ccec3ba0a17c8050ea78500dfdd0e4c5c0cc
Headers show
Series Disable compat cruft on ppc64le v12 | expand

Checks

Context Check Description
snowpatch_ozlabs/apply_patch success Successfully applied on branch powerpc/merge (8a445cbcb9f5090cb07ec6cbb89a8a1fc99a0ff7)
snowpatch_ozlabs/checkpatch success total: 0 errors, 0 warnings, 0 checks, 16 lines checked
snowpatch_ozlabs/needsstable success Patch has no Fixes tags

Commit Message

Michal Suchánek March 20, 2020, 10:20 a.m. UTC
This partially reverts commit caf6f9c8a326 ("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.

Link: https://lore.kernel.org/lkml/20190828151552.GA16855@infradead.org/
Link: https://lore.kernel.org/lkml/20190829214319.498c7de2@naga/

Signed-off-by: Michal Suchanek <msuchanek@suse.de>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
---
v7: new patch
---
 arch/powerpc/include/asm/unistd.h | 1 +
 fs/read_write.c                   | 3 ++-
 2 files changed, 3 insertions(+), 1 deletion(-)

Comments

Michael Ellerman April 6, 2020, 1:05 p.m. UTC | #1
On Fri, 2020-03-20 at 10:20:12 UTC, Michal Suchanek wrote:
> This partially reverts commit caf6f9c8a326 ("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.
> 
> Link: https://lore.kernel.org/lkml/20190828151552.GA16855@infradead.org/
> Link: https://lore.kernel.org/lkml/20190829214319.498c7de2@naga/
> 
> Signed-off-by: Michal Suchanek <msuchanek@suse.de>
> Reviewed-by: Arnd Bergmann <arnd@arndb.de>

Patches 1-7 applied to powerpc next, thanks.

https://git.kernel.org/powerpc/c/9e62ccec3ba0a17c8050ea78500dfdd0e4c5c0cc

cheers
diff mbox series

Patch

diff --git a/arch/powerpc/include/asm/unistd.h b/arch/powerpc/include/asm/unistd.h
index b0720c7c3fcf..700fcdac2e3c 100644
--- a/arch/powerpc/include/asm/unistd.h
+++ b/arch/powerpc/include/asm/unistd.h
@@ -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
diff --git a/fs/read_write.c b/fs/read_write.c
index 59d819c5b92e..bbfa9b12b15e 100644
--- a/fs/read_write.c
+++ b/fs/read_write.c
@@ -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)