1
linux/arch/sparc/lib/ipcsum.S
Masahiro Yamada 4cdb71b6ba sparc: replace #include <asm/export.h> with #include <linux/export.h>
Commit ddb5cdbafa ("kbuild: generate KSYMTAB entries by modpost")
deprecated <asm/export.h>, which is now a wrapper of <linux/export.h>.

Replace #include <asm/export.h> with #include <linux/export.h>.

After all the <asm/export.h> lines are converted, <asm/export.h> and
<asm-generic/export.h> will be removed.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
2023-08-22 18:12:25 +09:00

37 lines
709 B
ArmAsm

/* SPDX-License-Identifier: GPL-2.0 */
#include <linux/export.h>
#include <linux/linkage.h>
.text
ENTRY(ip_fast_csum) /* %o0 = iph, %o1 = ihl */
sub %o1, 4, %g7
lduw [%o0 + 0x00], %o2
lduw [%o0 + 0x04], %g2
lduw [%o0 + 0x08], %g3
addcc %g2, %o2, %o2
lduw [%o0 + 0x0c], %g2
addccc %g3, %o2, %o2
lduw [%o0 + 0x10], %g3
addccc %g2, %o2, %o2
addc %o2, %g0, %o2
1: addcc %g3, %o2, %o2
add %o0, 4, %o0
addccc %o2, %g0, %o2
subcc %g7, 1, %g7
be,a,pt %icc, 2f
sll %o2, 16, %g2
lduw [%o0 + 0x10], %g3
ba,pt %xcc, 1b
nop
2: addcc %o2, %g2, %g2
srl %g2, 16, %o2
addc %o2, %g0, %o2
xnor %g0, %o2, %o2
set 0xffff, %o1
retl
and %o2, %o1, %o0
ENDPROC(ip_fast_csum)
EXPORT_SYMBOL(ip_fast_csum)