tree: https://git.kernel.org/pub/scm/linux/kernel/git/davem/net.git master head: 6c711c8691bf91d0e830ff4215b08e51c0626769 commit: 1272ce87fa017ca4cf32920764d879656b7a005a [16/18] gro: Enter slow-path if there is no tailroom config: i386-randconfig-x004-201702 (attached as .config) compiler: gcc-6 (Debian 6.2.0-3) 6.2.0 20160901 reproduce: git checkout 1272ce87fa017ca4cf32920764d879656b7a005a # save the attached .config to linux build tree make ARCH=i386
All warnings (new ones prefixed by >>):
In file included from include/linux/sched.h:17:0,
from include/linux/uaccess.h:4,
from net/core/dev.c:75:
net/core/dev.c: In function 'skb_gro_reset_offset':
include/linux/kernel.h:753:16: warning: comparison of distinct pointer types
lacks a cast
(void) (&min1 == &min2); \
^
include/linux/kernel.h:756:2: note: in expansion of macro '__min'
__min(typeof(x), typeof(y), \
^~~~~
>> net/core/dev.c:4444:33: note: in expansion of macro 'min'
NAPI_GRO_CB(skb)->frag0_len = min(skb_frag_size(frag0),
^~~
vim +/min +4444 net/core/dev.c
4428 }
4429 }
4430
4431 static void skb_gro_reset_offset(struct sk_buff *skb)
4432 {
4433 const struct skb_shared_info *pinfo = skb_shinfo(skb);
4434 const skb_frag_t *frag0 = &pinfo->frags[0];
4435
4436 NAPI_GRO_CB(skb)->data_offset = 0;
4437 NAPI_GRO_CB(skb)->frag0 = NULL;
4438 NAPI_GRO_CB(skb)->frag0_len = 0;
4439
4440 if (skb_mac_header(skb) == skb_tail_pointer(skb) &&
4441 pinfo->nr_frags &&
4442 !PageHighMem(skb_frag_page(frag0))) {
4443 NAPI_GRO_CB(skb)->frag0 = skb_frag_address(frag0);
> 4444 NAPI_GRO_CB(skb)->frag0_len = min(skb_frag_size(frag0),
4445 skb->end - skb->tail);
4446 }
4447 }
4448
4449 static void gro_pull_from_frag0(struct sk_buff *skb, int grow)
4450 {
4451 struct skb_shared_info *pinfo = skb_shinfo(skb);
4452
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0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
.config.gz
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