/* * netsniff-ng - the packet sniffing beast * Copyright (C) 2012 Christoph Jaeger * Subject to the GPL, version 2. */ #ifndef PKT_BUFF_H #define PKT_BUFF_H #include "hash.h" #include "built_in.h" #include "proto.h" #include "xmalloc.h" struct pkt_buff { /* invariant: head <= data <= tail */ uint8_t *head; uint8_t *data; uint8_t *tail; struct protocol *dissector; uint32_t link_type; struct sockaddr_ll *sll; }; static inline struct pkt_buff *pkt_alloc(uint8_t *packet, unsigned int len) { struct pkt_buff *pkt = xmalloc(sizeof(*pkt)); pkt->head = packet; pkt->data = packet; pkt->tail = packet + len; pkt->dissector = NULL; return pkt; } static inline void pkt_free(struct pkt_buff *pkt) { xfree(pkt); } static inline unsigned int pkt_len(struct pkt_buff *pkt) { bug_on(!pkt || pkt->data > pkt->tail); return pkt->tail - pkt->data; } static inline uint8_t *pkt_pull(struct pkt_buff *pkt, unsigned int len) { uint8_t *data = NULL; bug_on(!pkt || pkt->head > pkt->data || pkt->data > pkt->tail); if (len <= pkt_len(pkt)) { data = pkt->data; pkt->data += len; } bug_on(!pkt || pkt->head > pkt->data || pkt->data > pkt->tail); return data; } static inline uint8_t *pkt_peek(struct pkt_buff *pkt) { bug_on(!pkt || pkt->head > pkt->data || pkt->data > pkt->tail); return pkt->data; } static inline unsigned int pkt_trim(struct pkt_buff *pkt, unsigned int len) { unsigned int ret = 0; bug_on(!pkt || pkt->head > pkt->data || pkt->data > pkt->tail); if (len <= pkt_len(pkt)) ret = len; pkt->tail -= ret; bug_on(!pkt || pkt->head > pkt->data || pkt->data > pkt->tail); return ret; } static inline uint8_t *pkt_pull_tail(struct pkt_buff *pkt, unsigned int len) { uint8_t *tail = NULL; bug_on(!pkt || pkt->head > pkt->data || pkt->data > pkt->tail); if (len <= pkt_len(pkt)) { tail = pkt->tail; pkt->tail -= len; } return tail; } static inline void pkt_set_dissector(struct pkt_buff *pkt, struct hash_table *table, unsigned int key) { bug_on(!pkt || !table); pkt->dissector = lookup_hash(key, table); while (pkt->dissector && key != pkt->dissector->key) pkt->dissector = pkt->dissector->next; } #endif /* PKT_BUFF_H */ ue='5af897e433e6ba2963c0edcb12f2f75c53d5fae4'/>
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authorRichard Cochran <rcochran@linutronix.de>2016-03-18 22:26:09 +0100
committerZhang Rui <rui.zhang@intel.com>2016-05-17 09:59:29 +0800
commit5af897e433e6ba2963c0edcb12f2f75c53d5fae4 (patch)
treeeb38114211a88b15585096ee5ee05587ce3f71d7 /.mailmap
parentf1ba9eb85b5e2ad79a3fcd594c6fe4d6956fd163 (diff)
thermal: x86_pkg_temp: Handle the FROZEN hot plug notifier actions.
When performing a suspend operation, the kernel brings all of the non-boot CPUs offline, calling the hot plug notifiers with the flag, CPU_TASKS_FROZEN, set in the action code. Similarly, during resume, the CPUs are brought back online, but again the notifiers have the FROZEN flag set. While some very few drivers really need to treat suspend/resume specially, this driver unintentionally ignores the notifications. This patch changes the driver to cancel its work item when the CPU goes down, even during a suspend operation. As a result, the suspended state is no longer a special case. Cc: Zhang Rui <rui.zhang@intel.com> Cc: Eduardo Valentin <edubezval@gmail.com> Cc: linux-pm@vger.kernel.org Signed-off-by: Richard Cochran <rcochran@linutronix.de> Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Diffstat (limited to '.mailmap')