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| author |   David Woodhouse <dwmw2@infradead.org> | 2006-05-16 01:19:52 +0100 |
|---|---|---|
| committer | David Woodhouse <dwmw2@infradead.org> | 2006-05-16 01:19:52 +0100 |
| commit | 18594822fcb01d4b35e05b9018f770a0b4156d1a (patch) | |
| tree | 38d35c38086a564beaac215f8e52694cdbfab1c3 /arch/ia64/lib/memcpy_mck.S | |
| parent | [PATCH] jffs2: memory leak in jffs2_scan_medium() (diff) | |
| parent | [PATCH] dl2k needs dma-mapping.h (diff) | |
| download | linux-dev-18594822fcb01d4b35e05b9018f770a0b4156d1a.tar.xz linux-dev-18594822fcb01d4b35e05b9018f770a0b4156d1a.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Diffstat (limited to 'arch/ia64/lib/memcpy_mck.S')
| -rw-r--r-- | arch/ia64/lib/memcpy_mck.S | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/arch/ia64/lib/memcpy_mck.S b/arch/ia64/lib/memcpy_mck.S index 46c9331e7ab5..9e534d52b1d5 100644 --- a/arch/ia64/lib/memcpy_mck.S +++ b/arch/ia64/lib/memcpy_mck.S @@ -6,7 +6,9 @@ * in1: source address * in2: number of bytes to copy * Output: - * 0 if success, or number of byte NOT copied if error occurred. + * for memcpy: return dest + * for copy_user: return 0 if success, + * or number of byte NOT copied if error occurred. * * Copyright (C) 2002 Intel Corp. * Copyright (C) 2002 Ken Chen <kenneth.w.chen@intel.com> @@ -73,6 +75,7 @@ GLOBAL_ENTRY(memcpy) and r28=0x7,in0 and r29=0x7,in1 mov f6=f0 + mov retval=in0 br.cond.sptk .common_code ;; END(memcpy) @@ -84,7 +87,7 @@ GLOBAL_ENTRY(__copy_user) mov f6=f1 mov saved_in0=in0 // save dest pointer mov saved_in1=in1 // save src pointer - mov saved_in2=in2 // save len + mov retval=r0 // initialize return value ;; .common_code: cmp.gt p15,p0=8,in2 // check for small size @@ -92,7 +95,7 @@ GLOBAL_ENTRY(__copy_user) cmp.ne p14,p0=0,r29 // check src alignment add src0=0,in1 sub r30=8,r28 // for .align_dest - mov retval=r0 // initialize return value + mov saved_in2=in2 // save len ;; add dst0=0,in0 add dst1=1,in0 // dest odd index |