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:
Joe Perches
Ingo Molnar
parent
3f61b19a9f
commit
0883e91ae2
@ -28,7 +28,8 @@ asmlinkage __wsum csum_partial(const void *buff, int len, __wsum sum);
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*/
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asmlinkage __wsum csum_partial_copy_generic(const void *src, void *dst,
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int len, __wsum sum, int *src_err_ptr, int *dst_err_ptr);
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int len, __wsum sum,
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int *src_err_ptr, int *dst_err_ptr);
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/*
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* Note: when you get a NULL pointer exception here this means someone
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@ -37,20 +38,20 @@ asmlinkage __wsum csum_partial_copy_generic(const void *src, void *dst,
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* If you use these functions directly please don't forget the
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* access_ok().
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*/
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static __inline__
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__wsum csum_partial_copy_nocheck (const void *src, void *dst,
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int len, __wsum sum)
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static inline __wsum csum_partial_copy_nocheck(const void *src, void *dst,
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int len, __wsum sum)
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{
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return csum_partial_copy_generic ( src, dst, len, sum, NULL, NULL);
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return csum_partial_copy_generic(src, dst, len, sum, NULL, NULL);
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}
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static __inline__
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__wsum csum_partial_copy_from_user(const void __user *src, void *dst,
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int len, __wsum sum, int *err_ptr)
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static inline __wsum csum_partial_copy_from_user(const void __user *src,
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void *dst,
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int len, __wsum sum,
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int *err_ptr)
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{
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might_sleep();
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return csum_partial_copy_generic((__force void *)src, dst,
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len, sum, err_ptr, NULL);
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len, sum, err_ptr, NULL);
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}
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/*
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@ -64,30 +65,29 @@ static inline __sum16 ip_fast_csum(const void *iph, unsigned int ihl)
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{
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unsigned int sum;
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__asm__ __volatile__(
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"movl (%1), %0 ;\n"
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"subl $4, %2 ;\n"
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"jbe 2f ;\n"
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"addl 4(%1), %0 ;\n"
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"adcl 8(%1), %0 ;\n"
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"adcl 12(%1), %0 ;\n"
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"1: adcl 16(%1), %0 ;\n"
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"lea 4(%1), %1 ;\n"
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"decl %2 ;\n"
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"jne 1b ;\n"
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"adcl $0, %0 ;\n"
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"movl %0, %2 ;\n"
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"shrl $16, %0 ;\n"
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"addw %w2, %w0 ;\n"
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"adcl $0, %0 ;\n"
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"notl %0 ;\n"
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"2: ;\n"
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asm volatile("movl (%1), %0 ;\n"
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"subl $4, %2 ;\n"
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"jbe 2f ;\n"
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"addl 4(%1), %0 ;\n"
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"adcl 8(%1), %0 ;\n"
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"adcl 12(%1), %0;\n"
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"1: adcl 16(%1), %0 ;\n"
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"lea 4(%1), %1 ;\n"
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"decl %2 ;\n"
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"jne 1b ;\n"
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"adcl $0, %0 ;\n"
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"movl %0, %2 ;\n"
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"shrl $16, %0 ;\n"
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"addw %w2, %w0 ;\n"
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"adcl $0, %0 ;\n"
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"notl %0 ;\n"
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"2: ;\n"
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/* Since the input registers which are loaded with iph and ihl
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are modified, we must also specify them as outputs, or gcc
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will assume they contain their original values. */
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: "=r" (sum), "=r" (iph), "=r" (ihl)
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: "1" (iph), "2" (ihl)
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: "memory");
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: "=r" (sum), "=r" (iph), "=r" (ihl)
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: "1" (iph), "2" (ihl)
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: "memory");
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return (__force __sum16)sum;
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}
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@ -97,29 +97,27 @@ static inline __sum16 ip_fast_csum(const void *iph, unsigned int ihl)
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static inline __sum16 csum_fold(__wsum sum)
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{
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__asm__(
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"addl %1, %0 ;\n"
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"adcl $0xffff, %0 ;\n"
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: "=r" (sum)
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: "r" ((__force u32)sum << 16),
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"0" ((__force u32)sum & 0xffff0000)
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);
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asm("addl %1, %0 ;\n"
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"adcl $0xffff, %0 ;\n"
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: "=r" (sum)
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: "r" ((__force u32)sum << 16),
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"0" ((__force u32)sum & 0xffff0000));
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return (__force __sum16)(~(__force u32)sum >> 16);
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}
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static inline __wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr,
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unsigned short len,
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unsigned short proto,
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__wsum sum)
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unsigned short len,
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unsigned short proto,
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__wsum sum)
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{
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__asm__(
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"addl %1, %0 ;\n"
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"adcl %2, %0 ;\n"
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"adcl %3, %0 ;\n"
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"adcl $0, %0 ;\n"
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: "=r" (sum)
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: "g" (daddr), "g"(saddr), "g"((len + proto) << 8), "0"(sum));
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return sum;
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asm("addl %1, %0 ;\n"
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"adcl %2, %0 ;\n"
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"adcl %3, %0 ;\n"
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"adcl $0, %0 ;\n"
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: "=r" (sum)
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: "g" (daddr), "g"(saddr),
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"g" ((len + proto) << 8), "0" (sum));
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return sum;
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}
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/*
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@ -127,11 +125,11 @@ static inline __wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr,
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* returns a 16-bit checksum, already complemented
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*/
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static inline __sum16 csum_tcpudp_magic(__be32 saddr, __be32 daddr,
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unsigned short len,
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unsigned short proto,
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__wsum sum)
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unsigned short len,
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unsigned short proto,
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__wsum sum)
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{
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return csum_fold(csum_tcpudp_nofold(saddr,daddr,len,proto,sum));
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return csum_fold(csum_tcpudp_nofold(saddr, daddr, len, proto, sum));
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}
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/*
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@ -141,30 +139,29 @@ static inline __sum16 csum_tcpudp_magic(__be32 saddr, __be32 daddr,
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static inline __sum16 ip_compute_csum(const void *buff, int len)
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{
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return csum_fold (csum_partial(buff, len, 0));
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return csum_fold(csum_partial(buff, len, 0));
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}
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#define _HAVE_ARCH_IPV6_CSUM
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static __inline__ __sum16 csum_ipv6_magic(const struct in6_addr *saddr,
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const struct in6_addr *daddr,
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__u32 len, unsigned short proto,
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__wsum sum)
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static inline __sum16 csum_ipv6_magic(const struct in6_addr *saddr,
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const struct in6_addr *daddr,
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__u32 len, unsigned short proto,
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__wsum sum)
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{
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__asm__(
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"addl 0(%1), %0 ;\n"
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"adcl 4(%1), %0 ;\n"
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"adcl 8(%1), %0 ;\n"
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"adcl 12(%1), %0 ;\n"
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"adcl 0(%2), %0 ;\n"
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"adcl 4(%2), %0 ;\n"
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"adcl 8(%2), %0 ;\n"
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"adcl 12(%2), %0 ;\n"
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"adcl %3, %0 ;\n"
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"adcl %4, %0 ;\n"
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"adcl $0, %0 ;\n"
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: "=&r" (sum)
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: "r" (saddr), "r" (daddr),
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"r"(htonl(len)), "r"(htonl(proto)), "0"(sum));
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asm("addl 0(%1), %0 ;\n"
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"adcl 4(%1), %0 ;\n"
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"adcl 8(%1), %0 ;\n"
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"adcl 12(%1), %0 ;\n"
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"adcl 0(%2), %0 ;\n"
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"adcl 4(%2), %0 ;\n"
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"adcl 8(%2), %0 ;\n"
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"adcl 12(%2), %0 ;\n"
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"adcl %3, %0 ;\n"
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"adcl %4, %0 ;\n"
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"adcl $0, %0 ;\n"
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: "=&r" (sum)
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: "r" (saddr), "r" (daddr),
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"r" (htonl(len)), "r" (htonl(proto)), "0" (sum));
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return csum_fold(sum);
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}
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@ -173,14 +170,15 @@ static __inline__ __sum16 csum_ipv6_magic(const struct in6_addr *saddr,
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* Copy and checksum to user
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*/
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#define HAVE_CSUM_COPY_USER
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static __inline__ __wsum csum_and_copy_to_user(const void *src,
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void __user *dst,
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int len, __wsum sum,
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int *err_ptr)
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static inline __wsum csum_and_copy_to_user(const void *src,
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void __user *dst,
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int len, __wsum sum,
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int *err_ptr)
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{
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might_sleep();
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if (access_ok(VERIFY_WRITE, dst, len))
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return csum_partial_copy_generic(src, (__force void *)dst, len, sum, NULL, err_ptr);
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return csum_partial_copy_generic(src, (__force void *)dst,
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len, sum, NULL, err_ptr);
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if (len)
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*err_ptr = -EFAULT;
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