/* * if_alg: User-space algorithm interface * * Copyright (c) 2010 Herbert Xu * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the Free * Software Foundation; either version 2 of the License, or (at your option) * any later version. * */ #ifndef _CRYPTO_IF_ALG_H #define _CRYPTO_IF_ALG_H #include #include #include #include #include #include #define ALG_MAX_PAGES 16 struct crypto_async_request; struct alg_sock { /* struct sock must be the first member of struct alg_sock */ struct sock sk; struct sock *parent; unsigned int refcnt; unsigned int nokey_refcnt; const struct af_alg_type *type; void *private; }; struct af_alg_completion { struct completion completion; int err; }; struct af_alg_control { struct af_alg_iv *iv; int op; unsigned int aead_assoclen; }; struct af_alg_type { void *(*bind)(const char *name, u32 type, u32 mask); void (*release)(void *private); int (*setkey)(void *private, const u8 *key, unsigned int keylen); int (*accept)(void *private, struct sock *sk); int (*accept_nokey)(void *private, struct sock *sk); int (*setauthsize)(void *private, unsigned int authsize); struct proto_ops *ops; struct proto_ops *ops_nokey; struct module *owner; char name[14]; }; struct af_alg_sgl { struct scatterlist sg[ALG_MAX_PAGES + 1]; struct page *pages[ALG_MAX_PAGES]; unsigned int npages; }; int af_alg_register_type(const struct af_alg_type *type); int af_alg_unregister_type(const struct af_alg_type *type); int af_alg_release(struct socket *sock); void af_alg_release_parent(struct sock *sk); int af_alg_accept(struct sock *sk, struct socket *newsock); int af_alg_make_sg(struct af_alg_sgl *sgl, struct iov_iter *iter, int len); void af_alg_free_sg(struct af_alg_sgl *sgl); void af_alg_link_sg(struct af_alg_sgl *sgl_prev, struct af_alg_sgl *sgl_new); int af_alg_cmsg_send(struct msghdr *msg, struct af_alg_control *con); int af_alg_wait_for_completion(int err, struct af_alg_completion *completion); void af_alg_complete(struct crypto_async_request *req, int err); static inline struct alg_sock *alg_sk(struct sock *sk) { return (struct alg_sock *)sk; } static inline void af_alg_init_completion(struct af_alg_completion *completion) { init_completion(&completion->completion); } #endif /* _CRYPTO_IF_ALG_H */ lue='range'>range
path: root/net/sched/act_meta_skbprio.c
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authorJohan Hovold <johan@kernel.org>2017-01-30 11:26:38 +0100
committerJiri Kosina <jkosina@suse.cz>2017-01-31 12:59:32 +0100
commit7a7b5df84b6b4e5d599c7289526eed96541a0654 (patch)
treecf7514c7ddf4410fe37ca9099a2785e1cf08fa7d /net/sched/act_meta_skbprio.c
parent877a021e08ccb6434718c0cc781fdf943c884cc0 (diff)
HID: cp2112: fix sleep-while-atomic
A recent commit fixing DMA-buffers on stack added a shared transfer buffer protected by a spinlock. This is broken as the USB HID request callbacks can sleep. Fix this up by replacing the spinlock with a mutex. Fixes: 1ffb3c40ffb5 ("HID: cp2112: make transfer buffers DMA capable") Cc: stable <stable@vger.kernel.org> # 4.9 Signed-off-by: Johan Hovold <johan@kernel.org> Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'net/sched/act_meta_skbprio.c')