lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

sh: comment tidying for sh64->sh migration.

Browse Source 
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Paul Mundt
2007-11-28 20:19:38 +09:00
parent 4b27c47cf8
commit a23ba43573
30 changed files with 150 additions and 190 deletions
Download Patch File Download Diff File Expand all files Collapse all files

28
arch/sh/mm/extable_64.c
View File

@@ -1,14 +1,14 @@
/*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*
* arch/sh64/mm/extable.c
* arch/sh/mm/extable_64.c
*
* Copyright (C) 2003 Richard Curnow
* Copyright (C) 2003, 2004 Paul Mundt
*
* Cloned from the 2.5 SH version..
*
* This file is subject to the terms and conditions of the GNU General Public
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/
#include <linux/rwsem.h>
#include <linux/module.h>
@@ -21,13 +21,16 @@ static const struct exception_table_entry __copy_user_fixup_ex = {
.fixup = (unsigned long)&__copy_user_fixup,
};
/* Some functions that may trap due to a bad user-mode address have too many loads
and stores in them to make it at all practical to label each one and put them all in
the main exception table.
In particular, the fast memcpy routine is like this. It's fix-up is just to fall back
to a slow byte-at-a-time copy, which is handled the conventional way. So it's functionally
OK to just handle any trap occurring in the fast memcpy with that fixup. */
/*
* Some functions that may trap due to a bad user-mode address have too
* many loads and stores in them to make it at all practical to label
* each one and put them all in the main exception table.
*
* In particular, the fast memcpy routine is like this. It's fix-up is
* just to fall back to a slow byte-at-a-time copy, which is handled the
* conventional way. So it's functionally OK to just handle any trap
* occurring in the fast memcpy with that fixup.
*/
static const struct exception_table_entry *check_exception_ranges(unsigned long addr)
{
if ((addr >= (unsigned long)&copy_user_memcpy) &&
@@ -77,4 +80,3 @@ int fixup_exception(struct pt_regs *regs)
return 0;
}