diff options
author | Dave Jones <davej@redhat.com> | 2006-12-12 17:41:41 -0500 |
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committer | Dave Jones <davej@redhat.com> | 2006-12-12 17:41:41 -0500 |
commit | c4366889dda8110247be59ca41fddb82951a8c26 (patch) | |
tree | 705c1a996bed8fd48ce94ff33ec9fd00f9b94875 /include/asm-s390/checksum.h | |
parent | db2fb9db5735cc532fd4fc55e94b9a3c3750378e (diff) | |
parent | e1036502e5263851259d147771226161e5ccc85a (diff) |
Merge ../linus
Conflicts:
drivers/cpufreq/cpufreq.c
Diffstat (limited to 'include/asm-s390/checksum.h')
-rw-r--r-- | include/asm-s390/checksum.h | 45 |
1 files changed, 21 insertions, 24 deletions
diff --git a/include/asm-s390/checksum.h b/include/asm-s390/checksum.h index 37c362d89fad..0a3cd7ec8451 100644 --- a/include/asm-s390/checksum.h +++ b/include/asm-s390/checksum.h | |||
@@ -27,8 +27,8 @@ | |||
27 | * | 27 | * |
28 | * it's best to have buff aligned on a 32-bit boundary | 28 | * it's best to have buff aligned on a 32-bit boundary |
29 | */ | 29 | */ |
30 | static inline unsigned int | 30 | static inline __wsum |
31 | csum_partial(const unsigned char * buff, int len, unsigned int sum) | 31 | csum_partial(const void *buff, int len, __wsum sum) |
32 | { | 32 | { |
33 | register unsigned long reg2 asm("2") = (unsigned long) buff; | 33 | register unsigned long reg2 asm("2") = (unsigned long) buff; |
34 | register unsigned long reg3 asm("3") = (unsigned long) len; | 34 | register unsigned long reg3 asm("3") = (unsigned long) len; |
@@ -49,9 +49,9 @@ csum_partial(const unsigned char * buff, int len, unsigned int sum) | |||
49 | * Copy from userspace and compute checksum. If we catch an exception | 49 | * Copy from userspace and compute checksum. If we catch an exception |
50 | * then zero the rest of the buffer. | 50 | * then zero the rest of the buffer. |
51 | */ | 51 | */ |
52 | static inline unsigned int | 52 | static inline __wsum |
53 | csum_partial_copy_from_user(const char __user *src, char *dst, | 53 | csum_partial_copy_from_user(const void __user *src, void *dst, |
54 | int len, unsigned int sum, | 54 | int len, __wsum sum, |
55 | int *err_ptr) | 55 | int *err_ptr) |
56 | { | 56 | { |
57 | int missing; | 57 | int missing; |
@@ -66,8 +66,8 @@ csum_partial_copy_from_user(const char __user *src, char *dst, | |||
66 | } | 66 | } |
67 | 67 | ||
68 | 68 | ||
69 | static inline unsigned int | 69 | static inline __wsum |
70 | csum_partial_copy_nocheck (const char *src, char *dst, int len, unsigned int sum) | 70 | csum_partial_copy_nocheck (const void *src, void *dst, int len, __wsum sum) |
71 | { | 71 | { |
72 | memcpy(dst,src,len); | 72 | memcpy(dst,src,len); |
73 | return csum_partial(dst, len, sum); | 73 | return csum_partial(dst, len, sum); |
@@ -76,8 +76,7 @@ csum_partial_copy_nocheck (const char *src, char *dst, int len, unsigned int sum | |||
76 | /* | 76 | /* |
77 | * Fold a partial checksum without adding pseudo headers | 77 | * Fold a partial checksum without adding pseudo headers |
78 | */ | 78 | */ |
79 | static inline unsigned short | 79 | static inline __sum16 csum_fold(__wsum sum) |
80 | csum_fold(unsigned int sum) | ||
81 | { | 80 | { |
82 | #ifndef __s390x__ | 81 | #ifndef __s390x__ |
83 | register_pair rp; | 82 | register_pair rp; |
@@ -100,7 +99,7 @@ csum_fold(unsigned int sum) | |||
100 | " srl %0,16\n" /* %0 = H+L+C */ | 99 | " srl %0,16\n" /* %0 = H+L+C */ |
101 | : "+&d" (sum) : : "cc", "2", "3"); | 100 | : "+&d" (sum) : : "cc", "2", "3"); |
102 | #endif /* __s390x__ */ | 101 | #endif /* __s390x__ */ |
103 | return ((unsigned short) ~sum); | 102 | return (__force __sum16) ~sum; |
104 | } | 103 | } |
105 | 104 | ||
106 | /* | 105 | /* |
@@ -108,8 +107,7 @@ csum_fold(unsigned int sum) | |||
108 | * which always checksum on 4 octet boundaries. | 107 | * which always checksum on 4 octet boundaries. |
109 | * | 108 | * |
110 | */ | 109 | */ |
111 | static inline unsigned short | 110 | static inline __sum16 ip_fast_csum(const void *iph, unsigned int ihl) |
112 | ip_fast_csum(unsigned char *iph, unsigned int ihl) | ||
113 | { | 111 | { |
114 | return csum_fold(csum_partial(iph, ihl*4, 0)); | 112 | return csum_fold(csum_partial(iph, ihl*4, 0)); |
115 | } | 113 | } |
@@ -118,10 +116,10 @@ ip_fast_csum(unsigned char *iph, unsigned int ihl) | |||
118 | * computes the checksum of the TCP/UDP pseudo-header | 116 | * computes the checksum of the TCP/UDP pseudo-header |
119 | * returns a 32-bit checksum | 117 | * returns a 32-bit checksum |
120 | */ | 118 | */ |
121 | static inline unsigned int | 119 | static inline __wsum |
122 | csum_tcpudp_nofold(unsigned long saddr, unsigned long daddr, | 120 | csum_tcpudp_nofold(__be32 saddr, __be32 daddr, |
123 | unsigned short len, unsigned short proto, | 121 | unsigned short len, unsigned short proto, |
124 | unsigned int sum) | 122 | __wsum sum) |
125 | { | 123 | { |
126 | #ifndef __s390x__ | 124 | #ifndef __s390x__ |
127 | asm volatile( | 125 | asm volatile( |
@@ -137,12 +135,12 @@ csum_tcpudp_nofold(unsigned long saddr, unsigned long daddr, | |||
137 | "1:" | 135 | "1:" |
138 | : "+&d" (sum) : "d" (daddr) : "cc"); | 136 | : "+&d" (sum) : "d" (daddr) : "cc"); |
139 | asm volatile( | 137 | asm volatile( |
140 | " alr %0,%1\n" /* sum += (len<<16) + (proto<<8) */ | 138 | " alr %0,%1\n" /* sum += len + proto */ |
141 | " brc 12,2f\n" | 139 | " brc 12,2f\n" |
142 | " ahi %0,1\n" /* add carry */ | 140 | " ahi %0,1\n" /* add carry */ |
143 | "2:" | 141 | "2:" |
144 | : "+&d" (sum) | 142 | : "+&d" (sum) |
145 | : "d" (((unsigned int) len<<16) + (unsigned int) proto) | 143 | : "d" (len + proto) |
146 | : "cc"); | 144 | : "cc"); |
147 | #else /* __s390x__ */ | 145 | #else /* __s390x__ */ |
148 | asm volatile( | 146 | asm volatile( |
@@ -153,7 +151,7 @@ csum_tcpudp_nofold(unsigned long saddr, unsigned long daddr, | |||
153 | "0: algr %0,%2\n" /* sum += daddr */ | 151 | "0: algr %0,%2\n" /* sum += daddr */ |
154 | " brc 12,1f\n" | 152 | " brc 12,1f\n" |
155 | " aghi %0,1\n" /* add carry */ | 153 | " aghi %0,1\n" /* add carry */ |
156 | "1: algfr %0,%3\n" /* sum += (len<<16) + proto */ | 154 | "1: algfr %0,%3\n" /* sum += len + proto */ |
157 | " brc 12,2f\n" | 155 | " brc 12,2f\n" |
158 | " aghi %0,1\n" /* add carry */ | 156 | " aghi %0,1\n" /* add carry */ |
159 | "2: srlg 0,%0,32\n" | 157 | "2: srlg 0,%0,32\n" |
@@ -163,7 +161,7 @@ csum_tcpudp_nofold(unsigned long saddr, unsigned long daddr, | |||
163 | "3: llgfr %0,%0" | 161 | "3: llgfr %0,%0" |
164 | : "+&d" (sum) | 162 | : "+&d" (sum) |
165 | : "d" (saddr), "d" (daddr), | 163 | : "d" (saddr), "d" (daddr), |
166 | "d" (((unsigned int) len<<16) + (unsigned int) proto) | 164 | "d" (len + proto) |
167 | : "cc", "0"); | 165 | : "cc", "0"); |
168 | #endif /* __s390x__ */ | 166 | #endif /* __s390x__ */ |
169 | return sum; | 167 | return sum; |
@@ -174,10 +172,10 @@ csum_tcpudp_nofold(unsigned long saddr, unsigned long daddr, | |||
174 | * returns a 16-bit checksum, already complemented | 172 | * returns a 16-bit checksum, already complemented |
175 | */ | 173 | */ |
176 | 174 | ||
177 | static inline unsigned short int | 175 | static inline __sum16 |
178 | csum_tcpudp_magic(unsigned long saddr, unsigned long daddr, | 176 | csum_tcpudp_magic(__be32 saddr, __be32 daddr, |
179 | unsigned short len, unsigned short proto, | 177 | unsigned short len, unsigned short proto, |
180 | unsigned int sum) | 178 | __wsum sum) |
181 | { | 179 | { |
182 | return csum_fold(csum_tcpudp_nofold(saddr,daddr,len,proto,sum)); | 180 | return csum_fold(csum_tcpudp_nofold(saddr,daddr,len,proto,sum)); |
183 | } | 181 | } |
@@ -187,8 +185,7 @@ csum_tcpudp_magic(unsigned long saddr, unsigned long daddr, | |||
187 | * in icmp.c | 185 | * in icmp.c |
188 | */ | 186 | */ |
189 | 187 | ||
190 | static inline unsigned short | 188 | static inline __sum16 ip_compute_csum(const void *buff, int len) |
191 | ip_compute_csum(unsigned char * buff, int len) | ||
192 | { | 189 | { |
193 | return csum_fold(csum_partial(buff, len, 0)); | 190 | return csum_fold(csum_partial(buff, len, 0)); |
194 | } | 191 | } |