mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-23 09:19:51 +00:00
include/asm-x86/checksum_32.h: checkpatch cleanups - formatting only
Signed-off-by: Joe Perches <joe@perches.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
parent
3f61b19a9f
commit
0883e91ae2
1 changed files with 75 additions and 77 deletions
|
@ -28,7 +28,8 @@ asmlinkage __wsum csum_partial(const void *buff, int len, __wsum sum);
|
||||||
*/
|
*/
|
||||||
|
|
||||||
asmlinkage __wsum csum_partial_copy_generic(const void *src, void *dst,
|
asmlinkage __wsum csum_partial_copy_generic(const void *src, void *dst,
|
||||||
int len, __wsum sum, int *src_err_ptr, int *dst_err_ptr);
|
int len, __wsum sum,
|
||||||
|
int *src_err_ptr, int *dst_err_ptr);
|
||||||
|
|
||||||
/*
|
/*
|
||||||
* Note: when you get a NULL pointer exception here this means someone
|
* Note: when you get a NULL pointer exception here this means someone
|
||||||
|
@ -37,20 +38,20 @@ asmlinkage __wsum csum_partial_copy_generic(const void *src, void *dst,
|
||||||
* If you use these functions directly please don't forget the
|
* If you use these functions directly please don't forget the
|
||||||
* access_ok().
|
* access_ok().
|
||||||
*/
|
*/
|
||||||
static __inline__
|
static inline __wsum csum_partial_copy_nocheck(const void *src, void *dst,
|
||||||
__wsum csum_partial_copy_nocheck (const void *src, void *dst,
|
int len, __wsum sum)
|
||||||
int len, __wsum sum)
|
|
||||||
{
|
{
|
||||||
return csum_partial_copy_generic ( src, dst, len, sum, NULL, NULL);
|
return csum_partial_copy_generic(src, dst, len, sum, NULL, NULL);
|
||||||
}
|
}
|
||||||
|
|
||||||
static __inline__
|
static inline __wsum csum_partial_copy_from_user(const void __user *src,
|
||||||
__wsum csum_partial_copy_from_user(const void __user *src, void *dst,
|
void *dst,
|
||||||
int len, __wsum sum, int *err_ptr)
|
int len, __wsum sum,
|
||||||
|
int *err_ptr)
|
||||||
{
|
{
|
||||||
might_sleep();
|
might_sleep();
|
||||||
return csum_partial_copy_generic((__force void *)src, dst,
|
return csum_partial_copy_generic((__force void *)src, dst,
|
||||||
len, sum, err_ptr, NULL);
|
len, sum, err_ptr, NULL);
|
||||||
}
|
}
|
||||||
|
|
||||||
/*
|
/*
|
||||||
|
@ -64,30 +65,29 @@ static inline __sum16 ip_fast_csum(const void *iph, unsigned int ihl)
|
||||||
{
|
{
|
||||||
unsigned int sum;
|
unsigned int sum;
|
||||||
|
|
||||||
__asm__ __volatile__(
|
asm volatile("movl (%1), %0 ;\n"
|
||||||
"movl (%1), %0 ;\n"
|
"subl $4, %2 ;\n"
|
||||||
"subl $4, %2 ;\n"
|
"jbe 2f ;\n"
|
||||||
"jbe 2f ;\n"
|
"addl 4(%1), %0 ;\n"
|
||||||
"addl 4(%1), %0 ;\n"
|
"adcl 8(%1), %0 ;\n"
|
||||||
"adcl 8(%1), %0 ;\n"
|
"adcl 12(%1), %0;\n"
|
||||||
"adcl 12(%1), %0 ;\n"
|
"1: adcl 16(%1), %0 ;\n"
|
||||||
"1: adcl 16(%1), %0 ;\n"
|
"lea 4(%1), %1 ;\n"
|
||||||
"lea 4(%1), %1 ;\n"
|
"decl %2 ;\n"
|
||||||
"decl %2 ;\n"
|
"jne 1b ;\n"
|
||||||
"jne 1b ;\n"
|
"adcl $0, %0 ;\n"
|
||||||
"adcl $0, %0 ;\n"
|
"movl %0, %2 ;\n"
|
||||||
"movl %0, %2 ;\n"
|
"shrl $16, %0 ;\n"
|
||||||
"shrl $16, %0 ;\n"
|
"addw %w2, %w0 ;\n"
|
||||||
"addw %w2, %w0 ;\n"
|
"adcl $0, %0 ;\n"
|
||||||
"adcl $0, %0 ;\n"
|
"notl %0 ;\n"
|
||||||
"notl %0 ;\n"
|
"2: ;\n"
|
||||||
"2: ;\n"
|
|
||||||
/* Since the input registers which are loaded with iph and ihl
|
/* Since the input registers which are loaded with iph and ihl
|
||||||
are modified, we must also specify them as outputs, or gcc
|
are modified, we must also specify them as outputs, or gcc
|
||||||
will assume they contain their original values. */
|
will assume they contain their original values. */
|
||||||
: "=r" (sum), "=r" (iph), "=r" (ihl)
|
: "=r" (sum), "=r" (iph), "=r" (ihl)
|
||||||
: "1" (iph), "2" (ihl)
|
: "1" (iph), "2" (ihl)
|
||||||
: "memory");
|
: "memory");
|
||||||
return (__force __sum16)sum;
|
return (__force __sum16)sum;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
@ -97,29 +97,27 @@ static inline __sum16 ip_fast_csum(const void *iph, unsigned int ihl)
|
||||||
|
|
||||||
static inline __sum16 csum_fold(__wsum sum)
|
static inline __sum16 csum_fold(__wsum sum)
|
||||||
{
|
{
|
||||||
__asm__(
|
asm("addl %1, %0 ;\n"
|
||||||
"addl %1, %0 ;\n"
|
"adcl $0xffff, %0 ;\n"
|
||||||
"adcl $0xffff, %0 ;\n"
|
: "=r" (sum)
|
||||||
: "=r" (sum)
|
: "r" ((__force u32)sum << 16),
|
||||||
: "r" ((__force u32)sum << 16),
|
"0" ((__force u32)sum & 0xffff0000));
|
||||||
"0" ((__force u32)sum & 0xffff0000)
|
|
||||||
);
|
|
||||||
return (__force __sum16)(~(__force u32)sum >> 16);
|
return (__force __sum16)(~(__force u32)sum >> 16);
|
||||||
}
|
}
|
||||||
|
|
||||||
static inline __wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr,
|
static inline __wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr,
|
||||||
unsigned short len,
|
unsigned short len,
|
||||||
unsigned short proto,
|
unsigned short proto,
|
||||||
__wsum sum)
|
__wsum sum)
|
||||||
{
|
{
|
||||||
__asm__(
|
asm("addl %1, %0 ;\n"
|
||||||
"addl %1, %0 ;\n"
|
"adcl %2, %0 ;\n"
|
||||||
"adcl %2, %0 ;\n"
|
"adcl %3, %0 ;\n"
|
||||||
"adcl %3, %0 ;\n"
|
"adcl $0, %0 ;\n"
|
||||||
"adcl $0, %0 ;\n"
|
: "=r" (sum)
|
||||||
: "=r" (sum)
|
: "g" (daddr), "g"(saddr),
|
||||||
: "g" (daddr), "g"(saddr), "g"((len + proto) << 8), "0"(sum));
|
"g" ((len + proto) << 8), "0" (sum));
|
||||||
return sum;
|
return sum;
|
||||||
}
|
}
|
||||||
|
|
||||||
/*
|
/*
|
||||||
|
@ -127,11 +125,11 @@ static inline __wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr,
|
||||||
* returns a 16-bit checksum, already complemented
|
* returns a 16-bit checksum, already complemented
|
||||||
*/
|
*/
|
||||||
static inline __sum16 csum_tcpudp_magic(__be32 saddr, __be32 daddr,
|
static inline __sum16 csum_tcpudp_magic(__be32 saddr, __be32 daddr,
|
||||||
unsigned short len,
|
unsigned short len,
|
||||||
unsigned short proto,
|
unsigned short proto,
|
||||||
__wsum sum)
|
__wsum sum)
|
||||||
{
|
{
|
||||||
return csum_fold(csum_tcpudp_nofold(saddr,daddr,len,proto,sum));
|
return csum_fold(csum_tcpudp_nofold(saddr, daddr, len, proto, sum));
|
||||||
}
|
}
|
||||||
|
|
||||||
/*
|
/*
|
||||||
|
@ -141,30 +139,29 @@ static inline __sum16 csum_tcpudp_magic(__be32 saddr, __be32 daddr,
|
||||||
|
|
||||||
static inline __sum16 ip_compute_csum(const void *buff, int len)
|
static inline __sum16 ip_compute_csum(const void *buff, int len)
|
||||||
{
|
{
|
||||||
return csum_fold (csum_partial(buff, len, 0));
|
return csum_fold(csum_partial(buff, len, 0));
|
||||||
}
|
}
|
||||||
|
|
||||||
#define _HAVE_ARCH_IPV6_CSUM
|
#define _HAVE_ARCH_IPV6_CSUM
|
||||||
static __inline__ __sum16 csum_ipv6_magic(const struct in6_addr *saddr,
|
static inline __sum16 csum_ipv6_magic(const struct in6_addr *saddr,
|
||||||
const struct in6_addr *daddr,
|
const struct in6_addr *daddr,
|
||||||
__u32 len, unsigned short proto,
|
__u32 len, unsigned short proto,
|
||||||
__wsum sum)
|
__wsum sum)
|
||||||
{
|
{
|
||||||
__asm__(
|
asm("addl 0(%1), %0 ;\n"
|
||||||
"addl 0(%1), %0 ;\n"
|
"adcl 4(%1), %0 ;\n"
|
||||||
"adcl 4(%1), %0 ;\n"
|
"adcl 8(%1), %0 ;\n"
|
||||||
"adcl 8(%1), %0 ;\n"
|
"adcl 12(%1), %0 ;\n"
|
||||||
"adcl 12(%1), %0 ;\n"
|
"adcl 0(%2), %0 ;\n"
|
||||||
"adcl 0(%2), %0 ;\n"
|
"adcl 4(%2), %0 ;\n"
|
||||||
"adcl 4(%2), %0 ;\n"
|
"adcl 8(%2), %0 ;\n"
|
||||||
"adcl 8(%2), %0 ;\n"
|
"adcl 12(%2), %0 ;\n"
|
||||||
"adcl 12(%2), %0 ;\n"
|
"adcl %3, %0 ;\n"
|
||||||
"adcl %3, %0 ;\n"
|
"adcl %4, %0 ;\n"
|
||||||
"adcl %4, %0 ;\n"
|
"adcl $0, %0 ;\n"
|
||||||
"adcl $0, %0 ;\n"
|
: "=&r" (sum)
|
||||||
: "=&r" (sum)
|
: "r" (saddr), "r" (daddr),
|
||||||
: "r" (saddr), "r" (daddr),
|
"r" (htonl(len)), "r" (htonl(proto)), "0" (sum));
|
||||||
"r"(htonl(len)), "r"(htonl(proto)), "0"(sum));
|
|
||||||
|
|
||||||
return csum_fold(sum);
|
return csum_fold(sum);
|
||||||
}
|
}
|
||||||
|
@ -173,14 +170,15 @@ static __inline__ __sum16 csum_ipv6_magic(const struct in6_addr *saddr,
|
||||||
* Copy and checksum to user
|
* Copy and checksum to user
|
||||||
*/
|
*/
|
||||||
#define HAVE_CSUM_COPY_USER
|
#define HAVE_CSUM_COPY_USER
|
||||||
static __inline__ __wsum csum_and_copy_to_user(const void *src,
|
static inline __wsum csum_and_copy_to_user(const void *src,
|
||||||
void __user *dst,
|
void __user *dst,
|
||||||
int len, __wsum sum,
|
int len, __wsum sum,
|
||||||
int *err_ptr)
|
int *err_ptr)
|
||||||
{
|
{
|
||||||
might_sleep();
|
might_sleep();
|
||||||
if (access_ok(VERIFY_WRITE, dst, len))
|
if (access_ok(VERIFY_WRITE, dst, len))
|
||||||
return csum_partial_copy_generic(src, (__force void *)dst, len, sum, NULL, err_ptr);
|
return csum_partial_copy_generic(src, (__force void *)dst,
|
||||||
|
len, sum, NULL, err_ptr);
|
||||||
|
|
||||||
if (len)
|
if (len)
|
||||||
*err_ptr = -EFAULT;
|
*err_ptr = -EFAULT;
|
||||||
|
|
Loading…
Reference in a new issue