/* Support for hardware buffer manager. * * Copyright (C) 2016 Marvell * * Gregory CLEMENT * * 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. */ #include #include #include #include void hwbm_buf_free(struct hwbm_pool *bm_pool, void *buf) { if (likely(bm_pool->frag_size <= PAGE_SIZE)) skb_free_frag(buf); else kfree(buf); } EXPORT_SYMBOL_GPL(hwbm_buf_free); /* Refill processing for HW buffer management */ int hwbm_pool_refill(struct hwbm_pool *bm_pool, gfp_t gfp) { int frag_size = bm_pool->frag_size; void *buf; if (likely(frag_size <= PAGE_SIZE)) buf = netdev_alloc_frag(frag_size); else buf = kmalloc(frag_size, gfp); if (!buf) return -ENOMEM; if (bm_pool->construct) if (bm_pool->construct(bm_pool, buf)) { hwbm_buf_free(bm_pool, buf); return -ENOMEM; } return 0; } EXPORT_SYMBOL_GPL(hwbm_pool_refill); int hwbm_pool_add(struct hwbm_pool *bm_pool, unsigned int buf_num, gfp_t gfp) { int err, i; unsigned long flags; spin_lock_irqsave(&bm_pool->lock, flags); if (bm_pool->buf_num == bm_pool->size) { pr_warn("pool already filled\n"); spin_unlock_irqrestore(&bm_pool->lock, flags); return bm_pool->buf_num; } if (buf_num + bm_pool->buf_num > bm_pool->size) { pr_warn("cannot allocate %d buffers for pool\n", buf_num); spin_unlock_irqrestore(&bm_pool->lock, flags); return 0; } if ((buf_num + bm_pool->buf_num) < bm_pool->buf_num) { pr_warn("Adding %d buffers to the %d current buffers will overflow\n", buf_num, bm_pool->buf_num); spin_unlock_irqrestore(&bm_pool->lock, flags); return 0; } for (i = 0; i < buf_num; i++) { err = hwbm_pool_refill(bm_pool, gfp); if (err < 0) break; } /* Update BM driver with number of buffers added to pool */ bm_pool->buf_num += i; pr_debug("hwpm pool: %d of %d buffers added\n", i, buf_num); spin_unlock_irqrestore(&bm_pool->lock, flags); return i; } EXPORT_SYMBOL_GPL(hwbm_pool_add); d='get' action='/cgit.cgi/linux/net-next.git/log/net/wireless/genregdb.awk'>
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authorJack Morgenstein <jackm@dev.mellanox.co.il>2017-01-15 20:15:00 +0200
committerDoug Ledford <dledford@redhat.com>2017-01-27 14:29:04 -0500
commitb4cfe3971f6eab542dd7ecc398bfa1aeec889934 (patch)
treec7ad49d05da0535170c8e7710cd44ae1cecc271f /net/wireless/genregdb.awk
parent2d4b21e0a2913612274a69a3ba1bfee4cffc6e77 (diff)
RDMA/cma: Fix unknown symbol when CONFIG_IPV6 is not enabled
If IPV6 has not been enabled in the underlying kernel, we must avoid calling IPV6 procedures in rdma_cm.ko. This requires using "IS_ENABLED(CONFIG_IPV6)" in "if" statements surrounding any code which calls external IPV6 procedures. In the instance fixed here, procedure cma_bind_addr() called ipv6_addr_type() -- which resulted in calling external procedure __ipv6_addr_type(). Fixes: 6c26a77124ff ("RDMA/cma: fix IPv6 address resolution") Cc: <stable@vger.kernel.org> # v4.2+ Cc: Spencer Baugh <sbaugh@catern.com> Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Reviewed-by: Moni Shoua <monis@mellanox.com> Signed-off-by: Leon Romanovsky <leon@kernel.org> Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'net/wireless/genregdb.awk')