Hi Jesper, [auto build test WARNING on net-next/master]
url: https://github.com/0day-ci/linux/commits/Jesper-Dangaard-Brouer/net-mitigating-kmem_cache-slowpath-and-BoF-discussion-patches/20160203-051706 reproduce: make htmldocs All warnings (new ones prefixed by >>): include/linux/skbuff.h:922: warning: No description found for parameter 'sk' >> net/core/skbuff.c:482: warning: No description found for parameter >> 'bulk_hint' net/core/gen_stats.c:155: warning: No description found for parameter 'cpu' net/core/gen_estimator.c:212: warning: No description found for parameter 'cpu_bstats' net/core/gen_estimator.c:303: warning: No description found for parameter 'cpu_bstats' net/core/dev.c:6450: warning: No description found for parameter 'len' include/linux/netdevice.h:1321: warning: Enum value 'IFF_XMIT_DST_RELEASE_PERM' not described in enum 'netdev_priv_flags' include/linux/netdevice.h:1321: warning: Enum value 'IFF_IPVLAN_MASTER' not described in enum 'netdev_priv_flags' include/linux/netdevice.h:1321: warning: Enum value 'IFF_IPVLAN_SLAVE' not described in enum 'netdev_priv_flags' include/linux/netdevice.h:1826: warning: No description found for parameter 'ptype_all' include/linux/netdevice.h:1826: warning: No description found for parameter 'ptype_specific' vim +/bulk_hint +482 net/core/skbuff.c ^1da177e Linus Torvalds 2005-04-16 466 fd11a83d Alexander Duyck 2014-12-09 467 /** fd11a83d Alexander Duyck 2014-12-09 468 * __napi_alloc_skb - allocate skbuff for rx in a specific NAPI instance fd11a83d Alexander Duyck 2014-12-09 469 * @napi: napi instance this buffer was allocated for d7499160 Masanari Iida 2015-08-24 470 * @len: length to allocate fd11a83d Alexander Duyck 2014-12-09 471 * @gfp_mask: get_free_pages mask, passed to alloc_skb and alloc_pages fd11a83d Alexander Duyck 2014-12-09 472 * fd11a83d Alexander Duyck 2014-12-09 473 * Allocate a new sk_buff for use in NAPI receive. This buffer will fd11a83d Alexander Duyck 2014-12-09 474 * attempt to allocate the head from a special reserved region used fd11a83d Alexander Duyck 2014-12-09 475 * only for NAPI Rx allocation. By doing this we can save several fd11a83d Alexander Duyck 2014-12-09 476 * CPU cycles by avoiding having to disable and re-enable IRQs. fd11a83d Alexander Duyck 2014-12-09 477 * fd11a83d Alexander Duyck 2014-12-09 478 * %NULL is returned if there is no free memory. fd11a83d Alexander Duyck 2014-12-09 479 */ 9451980a Alexander Duyck 2015-05-06 480 struct sk_buff *__napi_alloc_skb(struct napi_struct *napi, unsigned int len, c24f01ac Jesper Dangaard Brouer 2016-02-02 481 unsigned int bulk_hint, gfp_t gfp_mask) fd11a83d Alexander Duyck 2014-12-09 @482 { 1ec46e92 Jesper Dangaard Brouer 2016-02-02 483 struct napi_alloc_cache *nc = this_cpu_ptr(&napi_alloc_cache); c24f01ac Jesper Dangaard Brouer 2016-02-02 484 unsigned int bulk_sz = min(bulk_hint, NAPI_SKB_CACHE_SIZE); fc755a89 Jesper Dangaard Brouer 2016-02-02 485 struct skb_shared_info *shinfo; fd11a83d Alexander Duyck 2014-12-09 486 struct sk_buff *skb; 9451980a Alexander Duyck 2015-05-06 487 void *data; fd11a83d Alexander Duyck 2014-12-09 488 9451980a Alexander Duyck 2015-05-06 489 len += NET_SKB_PAD + NET_IP_ALIGN; 9451980a Alexander Duyck 2015-05-06 490 :::::: The code at line 482 was first introduced by commit :::::: fd11a83dd3630ec6a60f8a702446532c5c7e1991 net: Pull out core bits of __netdev_alloc_skb and add __napi_alloc_skb :::::: TO: Alexander Duyck <alexander.h.du...@redhat.com> :::::: CC: David S. Miller <da...@davemloft.net> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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