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authorDavid S. Miller <davem@davemloft.net>2013-05-24 19:48:28 -0400
committerDavid S. Miller <davem@davemloft.net>2013-05-24 19:48:28 -0400
commite6ff4c75f9095f61b3a66c2a78e47b62864022dd (patch)
tree425ea9463cbec0b1975b8a33d9a56817143055d0 /net/core
parentee9c799c231324de681eb21e06d8bf4842768b75 (diff)
parent0e255f1c0c9add2f0c920240ac4cadc28ae274c3 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net
Merge net into net-next because some upcoming net-next changes build on top of bug fixes that went into net. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core')
-rw-r--r--net/core/iovec.c50
1 files changed, 0 insertions, 50 deletions
diff --git a/net/core/iovec.c b/net/core/iovec.c
index 7e7aeb01de45..de178e462682 100644
--- a/net/core/iovec.c
+++ b/net/core/iovec.c
@@ -75,31 +75,6 @@ int verify_iovec(struct msghdr *m, struct iovec *iov, struct sockaddr_storage *a
75 75
76/* 76/*
77 * Copy kernel to iovec. Returns -EFAULT on error. 77 * Copy kernel to iovec. Returns -EFAULT on error.
78 *
79 * Note: this modifies the original iovec.
80 */
81
82int memcpy_toiovec(struct iovec *iov, unsigned char *kdata, int len)
83{
84 while (len > 0) {
85 if (iov->iov_len) {
86 int copy = min_t(unsigned int, iov->iov_len, len);
87 if (copy_to_user(iov->iov_base, kdata, copy))
88 return -EFAULT;
89 kdata += copy;
90 len -= copy;
91 iov->iov_len -= copy;
92 iov->iov_base += copy;
93 }
94 iov++;
95 }
96
97 return 0;
98}
99EXPORT_SYMBOL(memcpy_toiovec);
100
101/*
102 * Copy kernel to iovec. Returns -EFAULT on error.
103 */ 78 */
104 79
105int memcpy_toiovecend(const struct iovec *iov, unsigned char *kdata, 80int memcpy_toiovecend(const struct iovec *iov, unsigned char *kdata,
@@ -125,31 +100,6 @@ int memcpy_toiovecend(const struct iovec *iov, unsigned char *kdata,
125EXPORT_SYMBOL(memcpy_toiovecend); 100EXPORT_SYMBOL(memcpy_toiovecend);
126 101
127/* 102/*
128 * Copy iovec to kernel. Returns -EFAULT on error.
129 *
130 * Note: this modifies the original iovec.
131 */
132
133int memcpy_fromiovec(unsigned char *kdata, struct iovec *iov, int len)
134{
135 while (len > 0) {
136 if (iov->iov_len) {
137 int copy = min_t(unsigned int, len, iov->iov_len);
138 if (copy_from_user(kdata, iov->iov_base, copy))
139 return -EFAULT;
140 len -= copy;
141 kdata += copy;
142 iov->iov_base += copy;
143 iov->iov_len -= copy;
144 }
145 iov++;
146 }
147
148 return 0;
149}
150EXPORT_SYMBOL(memcpy_fromiovec);
151
152/*
153 * Copy iovec from kernel. Returns -EFAULT on error. 103 * Copy iovec from kernel. Returns -EFAULT on error.
154 */ 104 */
155 105