/* * u_f.h * * Utility definitions for USB functions * * Copyright (c) 2013 Samsung Electronics Co., Ltd. * http://www.samsung.com * * Author: Andrzej Pietrasiewicz * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as * published by the Free Software Foundation. */ #ifndef __U_F_H__ #define __U_F_H__ #include /* Variable Length Array Macros **********************************************/ #define vla_group(groupname) size_t groupname##__next = 0 #define vla_group_size(groupname) groupname##__next #define vla_item(groupname, type, name, n) \ size_t groupname##_##name##__offset = ({ \ size_t align_mask = __alignof__(type) - 1; \ size_t offset = (groupname##__next + align_mask) & ~align_mask;\ size_t size = (n) * sizeof(type); \ groupname##__next = offset + size; \ offset; \ }) #define vla_item_with_sz(groupname, type, name, n) \ size_t groupname##_##name##__sz = (n) * sizeof(type); \ size_t groupname##_##name##__offset = ({ \ size_t align_mask = __alignof__(type) - 1; \ size_t offset = (groupname##__next + align_mask) & ~align_mask;\ size_t size = groupname##_##name##__sz; \ groupname##__next = offset + size; \ offset; \ }) #define vla_ptr(ptr, groupname, name) \ ((void *) ((char *)ptr + groupname##_##name##__offset)) struct usb_ep; struct usb_request; /** * alloc_ep_req - returns a usb_request allocated by the gadget driver and * allocates the request's buffer. * * @ep: the endpoint to allocate a usb_request * @len: usb_requests's buffer suggested size * * In case @ep direction is OUT, the @len will be aligned to ep's * wMaxPacketSize. In order to avoid memory leaks or drops, *always* use * usb_requests's length (req->length) to refer to the allocated buffer size. * Requests allocated via alloc_ep_req() *must* be freed by free_ep_req(). */ struct usb_request *alloc_ep_req(struct usb_ep *ep, size_t len); /* Frees a usb_request previously allocated by alloc_ep_req() */ static inline void free_ep_req(struct usb_ep *ep, struct usb_request *req) { kfree(req->buf); usb_ep_free_request(ep, req); } #endif /* __U_F_H__ */ name='id' value='883af14e67e8b8702b5560aa64c888c0cd0bd66c'/>
path: root/drivers/usb/gadget/udc/net2280.c
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authorLinus Torvalds <torvalds@linux-foundation.org>2017-01-24 16:54:39 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-01-24 16:54:39 -0800
commit883af14e67e8b8702b5560aa64c888c0cd0bd66c (patch)
tree74e3a6b53f5fad9f7848ab1b9f6921b7012940a4 /drivers/usb/gadget/udc/net2280.c
parent0263d4ebd94b36280608e296cba39b924b6e832b (diff)
parentaab45453ff5c77200c6da4ac909f7a4392aed17e (diff)
Merge branch 'akpm' (patches from Andrew)
Merge fixes from Andrew Morton: "26 fixes" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: (26 commits) MAINTAINERS: add Dan Streetman to zbud maintainers MAINTAINERS: add Dan Streetman to zswap maintainers mm: do not export ioremap_page_range symbol for external module mn10300: fix build error of missing fpu_save() romfs: use different way to generate fsid for BLOCK or MTD frv: add missing atomic64 operations mm, page_alloc: fix premature OOM when racing with cpuset mems update mm, page_alloc: move cpuset seqcount checking to slowpath mm, page_alloc: fix fast-path race with cpuset update or removal mm, page_alloc: fix check for NULL preferred_zone kernel/panic.c: add missing \n fbdev: color map copying bounds checking frv: add atomic64_add_unless() mm/mempolicy.c: do not put mempolicy before using its nodemask radix-tree: fix private list warnings Documentation/filesystems/proc.txt: add VmPin mm, memcg: do not retry precharge charges proc: add a schedule point in proc_pid_readdir() mm: alloc_contig: re-allow CMA to compact FS pages mm/slub.c: trace free objects at KERN_INFO ...
Diffstat (limited to 'drivers/usb/gadget/udc/net2280.c')