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authorLinus Torvalds <torvalds@linux-foundation.org>2014-06-28 12:43:58 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2014-06-28 12:43:58 -0400
commiteb477e03feb8dacb3a9e3b2f750ff6c6eeffee33 (patch)
tree7ee3465e09d972d1e03fc5c38bd281a4e30567e4 /net
parent3e7b256cba330240c8fcde3d01c65bfda12a2847 (diff)
parent81a9c5e72bdf7109a65102ca61d8cbd722cf4021 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
Pull SCSI target fixes from Nicholas Bellinger: "Mostly minor fixes this time around. The highlights include: - iscsi-target CHAP authentication fixes to enforce explicit key values (Tejas Vaykole + rahul.rane) - fix a long-standing OOPs in target-core when a alua configfs attribute is accessed after port symlink has been removed. (Sebastian Herbszt) - fix a v3.10.y iscsi-target regression causing the login reject status class/detail to be ignored (Christoph Vu-Brugier) - fix a v3.10.y iscsi-target regression to avoid rejecting an existing ITT during Data-Out when data-direction is wrong (Santosh Kulkarni + Arshad Hussain) - fix a iscsi-target related shutdown deadlock on UP kernels (Mikulas Patocka) - fix a v3.16-rc1 build issue with vhost-scsi + !CONFIG_NET (MST)" * git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: iscsi-target: fix iscsit_del_np deadlock on unload iovec: move memcpy_from/toiovecend to lib/iovec.c iscsi-target: Avoid rejecting incorrect ITT for Data-Out tcm_loop: Fix memory leak in tcm_loop_submission_work error path iscsi-target: Explicily clear login response PDU in exception path target: Fix left-over se_lun->lun_sep pointer OOPs iscsi-target; Enforce 1024 byte maximum for CHAP_C key value iscsi-target: Convert chap_server_compute_md5 to use kstrtoul
Diffstat (limited to 'net')
-rw-r--r--net/core/iovec.c55
1 files changed, 0 insertions, 55 deletions
diff --git a/net/core/iovec.c b/net/core/iovec.c
index b61869429f4c..827dd6beb49c 100644
--- a/net/core/iovec.c
+++ b/net/core/iovec.c
@@ -75,61 +75,6 @@ int verify_iovec(struct msghdr *m, struct iovec *iov, struct sockaddr_storage *a
75} 75}
76 76
77/* 77/*
78 * Copy kernel to iovec. Returns -EFAULT on error.
79 */
80
81int memcpy_toiovecend(const struct iovec *iov, unsigned char *kdata,
82 int offset, int len)
83{
84 int copy;
85 for (; len > 0; ++iov) {
86 /* Skip over the finished iovecs */
87 if (unlikely(offset >= iov->iov_len)) {
88 offset -= iov->iov_len;
89 continue;
90 }
91 copy = min_t(unsigned int, iov->iov_len - offset, len);
92 if (copy_to_user(iov->iov_base + offset, kdata, copy))
93 return -EFAULT;
94 offset = 0;
95 kdata += copy;
96 len -= copy;
97 }
98
99 return 0;
100}
101EXPORT_SYMBOL(memcpy_toiovecend);
102
103/*
104 * Copy iovec to kernel. Returns -EFAULT on error.
105 */
106
107int memcpy_fromiovecend(unsigned char *kdata, const struct iovec *iov,
108 int offset, int len)
109{
110 /* Skip over the finished iovecs */
111 while (offset >= iov->iov_len) {
112 offset -= iov->iov_len;
113 iov++;
114 }
115
116 while (len > 0) {
117 u8 __user *base = iov->iov_base + offset;
118 int copy = min_t(unsigned int, len, iov->iov_len - offset);
119
120 offset = 0;
121 if (copy_from_user(kdata, base, copy))
122 return -EFAULT;
123 len -= copy;
124 kdata += copy;
125 iov++;
126 }
127
128 return 0;
129}
130EXPORT_SYMBOL(memcpy_fromiovecend);
131
132/*
133 * And now for the all-in-one: copy and checksum from a user iovec 78 * And now for the all-in-one: copy and checksum from a user iovec
134 * directly to a datagram 79 * directly to a datagram
135 * Calls to csum_partial but the last must be in 32 bit chunks 80 * Calls to csum_partial but the last must be in 32 bit chunks