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authorJoe Perches <joe@perches.com>2008-03-23 04:01:49 -0400
committerIngo Molnar <mingo@elte.hu>2008-04-17 11:41:22 -0400
commit0883e91ae209f4ada4db9b383026df77351c1320 (patch)
tree59af905efb0f627010fa43ba98979a827b198844 /include
parent3f61b19a9f60a0469a19113be8bb3b3623006de2 (diff)
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>
Diffstat (limited to 'include')
-rw-r--r--include/asm-x86/checksum_32.h152
1 files changed, 75 insertions, 77 deletions
diff --git a/include/asm-x86/checksum_32.h b/include/asm-x86/checksum_32.h
index 75194abbe8ee..52bbb0d8c4c1 100644
--- a/include/asm-x86/checksum_32.h
+++ b/include/asm-x86/checksum_32.h
@@ -28,7 +28,8 @@ asmlinkage __wsum csum_partial(const void *buff, int len, __wsum sum);
28 */ 28 */
29 29
30asmlinkage __wsum csum_partial_copy_generic(const void *src, void *dst, 30asmlinkage __wsum csum_partial_copy_generic(const void *src, void *dst,
31 int len, __wsum sum, int *src_err_ptr, int *dst_err_ptr); 31 int len, __wsum sum,
32 int *src_err_ptr, int *dst_err_ptr);
32 33
33/* 34/*
34 * Note: when you get a NULL pointer exception here this means someone 35 * 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,
37 * If you use these functions directly please don't forget the 38 * If you use these functions directly please don't forget the
38 * access_ok(). 39 * access_ok().
39 */ 40 */
40static __inline__ 41static inline __wsum csum_partial_copy_nocheck(const void *src, void *dst,
41__wsum csum_partial_copy_nocheck (const void *src, void *dst, 42 int len, __wsum sum)
42 int len, __wsum sum)
43{ 43{
44 return csum_partial_copy_generic ( src, dst, len, sum, NULL, NULL); 44 return csum_partial_copy_generic(src, dst, len, sum, NULL, NULL);
45} 45}
46 46
47static __inline__ 47static inline __wsum csum_partial_copy_from_user(const void __user *src,
48__wsum csum_partial_copy_from_user(const void __user *src, void *dst, 48 void *dst,
49 int len, __wsum sum, int *err_ptr) 49 int len, __wsum sum,
50 int *err_ptr)
50{ 51{
51 might_sleep(); 52 might_sleep();
52 return csum_partial_copy_generic((__force void *)src, dst, 53 return csum_partial_copy_generic((__force void *)src, dst,
53 len, sum, err_ptr, NULL); 54 len, sum, err_ptr, NULL);
54} 55}
55 56
56/* 57/*
@@ -64,30 +65,29 @@ static inline __sum16 ip_fast_csum(const void *iph, unsigned int ihl)
64{ 65{
65 unsigned int sum; 66 unsigned int sum;
66 67
67 __asm__ __volatile__( 68 asm volatile("movl (%1), %0 ;\n"
68 "movl (%1), %0 ;\n" 69 "subl $4, %2 ;\n"
69 "subl $4, %2 ;\n" 70 "jbe 2f ;\n"
70 "jbe 2f ;\n" 71 "addl 4(%1), %0 ;\n"
71 "addl 4(%1), %0 ;\n" 72 "adcl 8(%1), %0 ;\n"
72 "adcl 8(%1), %0 ;\n" 73 "adcl 12(%1), %0;\n"
73 "adcl 12(%1), %0 ;\n" 74 "1: adcl 16(%1), %0 ;\n"
74"1: adcl 16(%1), %0 ;\n" 75 "lea 4(%1), %1 ;\n"
75 "lea 4(%1), %1 ;\n" 76 "decl %2 ;\n"
76 "decl %2 ;\n" 77 "jne 1b ;\n"
77 "jne 1b ;\n" 78 "adcl $0, %0 ;\n"
78 "adcl $0, %0 ;\n" 79 "movl %0, %2 ;\n"
79 "movl %0, %2 ;\n" 80 "shrl $16, %0 ;\n"
80 "shrl $16, %0 ;\n" 81 "addw %w2, %w0 ;\n"
81 "addw %w2, %w0 ;\n" 82 "adcl $0, %0 ;\n"
82 "adcl $0, %0 ;\n" 83 "notl %0 ;\n"
83 "notl %0 ;\n" 84 "2: ;\n"
84"2: ;\n"
85 /* Since the input registers which are loaded with iph and ihl 85 /* Since the input registers which are loaded with iph and ihl
86 are modified, we must also specify them as outputs, or gcc 86 are modified, we must also specify them as outputs, or gcc
87 will assume they contain their original values. */ 87 will assume they contain their original values. */
88 : "=r" (sum), "=r" (iph), "=r" (ihl) 88 : "=r" (sum), "=r" (iph), "=r" (ihl)
89 : "1" (iph), "2" (ihl) 89 : "1" (iph), "2" (ihl)
90 : "memory"); 90 : "memory");
91 return (__force __sum16)sum; 91 return (__force __sum16)sum;
92} 92}
93 93
@@ -97,29 +97,27 @@ static inline __sum16 ip_fast_csum(const void *iph, unsigned int ihl)
97 97
98static inline __sum16 csum_fold(__wsum sum) 98static inline __sum16 csum_fold(__wsum sum)
99{ 99{
100 __asm__( 100 asm("addl %1, %0 ;\n"
101 "addl %1, %0 ;\n" 101 "adcl $0xffff, %0 ;\n"
102 "adcl $0xffff, %0 ;\n" 102 : "=r" (sum)
103 : "=r" (sum) 103 : "r" ((__force u32)sum << 16),
104 : "r" ((__force u32)sum << 16), 104 "0" ((__force u32)sum & 0xffff0000));
105 "0" ((__force u32)sum & 0xffff0000)
106 );
107 return (__force __sum16)(~(__force u32)sum >> 16); 105 return (__force __sum16)(~(__force u32)sum >> 16);
108} 106}
109 107
110static inline __wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr, 108static inline __wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr,
111 unsigned short len, 109 unsigned short len,
112 unsigned short proto, 110 unsigned short proto,
113 __wsum sum) 111 __wsum sum)
114{ 112{
115 __asm__( 113 asm("addl %1, %0 ;\n"
116 "addl %1, %0 ;\n" 114 "adcl %2, %0 ;\n"
117 "adcl %2, %0 ;\n" 115 "adcl %3, %0 ;\n"
118 "adcl %3, %0 ;\n" 116 "adcl $0, %0 ;\n"
119 "adcl $0, %0 ;\n" 117 : "=r" (sum)
120 : "=r" (sum) 118 : "g" (daddr), "g"(saddr),
121 : "g" (daddr), "g"(saddr), "g"((len + proto) << 8), "0"(sum)); 119 "g" ((len + proto) << 8), "0" (sum));
122 return sum; 120 return sum;
123} 121}
124 122
125/* 123/*
@@ -127,11 +125,11 @@ static inline __wsum csum_tcpudp_nofold(__be32 saddr, __be32 daddr,
127 * returns a 16-bit checksum, already complemented 125 * returns a 16-bit checksum, already complemented
128 */ 126 */
129static inline __sum16 csum_tcpudp_magic(__be32 saddr, __be32 daddr, 127static inline __sum16 csum_tcpudp_magic(__be32 saddr, __be32 daddr,
130 unsigned short len, 128 unsigned short len,
131 unsigned short proto, 129 unsigned short proto,
132 __wsum sum) 130 __wsum sum)
133{ 131{
134 return csum_fold(csum_tcpudp_nofold(saddr,daddr,len,proto,sum)); 132 return csum_fold(csum_tcpudp_nofold(saddr, daddr, len, proto, sum));
135} 133}
136 134
137/* 135/*
@@ -141,30 +139,29 @@ static inline __sum16 csum_tcpudp_magic(__be32 saddr, __be32 daddr,
141 139
142static inline __sum16 ip_compute_csum(const void *buff, int len) 140static inline __sum16 ip_compute_csum(const void *buff, int len)
143{ 141{
144 return csum_fold (csum_partial(buff, len, 0)); 142 return csum_fold(csum_partial(buff, len, 0));
145} 143}
146 144
147#define _HAVE_ARCH_IPV6_CSUM 145#define _HAVE_ARCH_IPV6_CSUM
148static __inline__ __sum16 csum_ipv6_magic(const struct in6_addr *saddr, 146static inline __sum16 csum_ipv6_magic(const struct in6_addr *saddr,
149 const struct in6_addr *daddr, 147 const struct in6_addr *daddr,
150 __u32 len, unsigned short proto, 148 __u32 len, unsigned short proto,
151 __wsum sum) 149 __wsum sum)
152{ 150{
153 __asm__( 151 asm("addl 0(%1), %0 ;\n"
154 "addl 0(%1), %0 ;\n" 152 "adcl 4(%1), %0 ;\n"
155 "adcl 4(%1), %0 ;\n" 153 "adcl 8(%1), %0 ;\n"
156 "adcl 8(%1), %0 ;\n" 154 "adcl 12(%1), %0 ;\n"
157 "adcl 12(%1), %0 ;\n" 155 "adcl 0(%2), %0 ;\n"
158 "adcl 0(%2), %0 ;\n" 156 "adcl 4(%2), %0 ;\n"
159 "adcl 4(%2), %0 ;\n" 157 "adcl 8(%2), %0 ;\n"
160 "adcl 8(%2), %0 ;\n" 158 "adcl 12(%2), %0 ;\n"
161 "adcl 12(%2), %0 ;\n" 159 "adcl %3, %0 ;\n"
162 "adcl %3, %0 ;\n" 160 "adcl %4, %0 ;\n"
163 "adcl %4, %0 ;\n" 161 "adcl $0, %0 ;\n"
164 "adcl $0, %0 ;\n" 162 : "=&r" (sum)
165 : "=&r" (sum) 163 : "r" (saddr), "r" (daddr),
166 : "r" (saddr), "r" (daddr), 164 "r" (htonl(len)), "r" (htonl(proto)), "0" (sum));
167 "r"(htonl(len)), "r"(htonl(proto)), "0"(sum));
168 165
169 return csum_fold(sum); 166 return csum_fold(sum);
170} 167}
@@ -173,14 +170,15 @@ static __inline__ __sum16 csum_ipv6_magic(const struct in6_addr *saddr,
173 * Copy and checksum to user 170 * Copy and checksum to user
174 */ 171 */
175#define HAVE_CSUM_COPY_USER 172#define HAVE_CSUM_COPY_USER
176static __inline__ __wsum csum_and_copy_to_user(const void *src, 173static inline __wsum csum_and_copy_to_user(const void *src,
177 void __user *dst, 174 void __user *dst,
178 int len, __wsum sum, 175 int len, __wsum sum,
179 int *err_ptr) 176 int *err_ptr)
180{ 177{
181 might_sleep(); 178 might_sleep();
182 if (access_ok(VERIFY_WRITE, dst, len)) 179 if (access_ok(VERIFY_WRITE, dst, len))
183 return csum_partial_copy_generic(src, (__force void *)dst, len, sum, NULL, err_ptr); 180 return csum_partial_copy_generic(src, (__force void *)dst,
181 len, sum, NULL, err_ptr);
184 182
185 if (len) 183 if (len)
186 *err_ptr = -EFAULT; 184 *err_ptr = -EFAULT;
generated by cgit v1.2.2 (git 2.25.0) at 2025-01-03 10:56:18 -0500