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Message-ID: <202408280648.f6Hb9cX3-lkp@intel.com>
Date: Wed, 28 Aug 2024 06:22:53 +0800
From: kernel test robot <lkp@...el.com>
To: Brett Creeley <brett.creeley@....com>, netdev@...r.kernel.org,
davem@...emloft.net, kuba@...nel.org, edumazet@...gle.com,
pabeni@...hat.com
Cc: llvm@...ts.linux.dev, oe-kbuild-all@...ts.linux.dev,
shannon.nelson@....com, brett.creeley@....com
Subject: Re: [PATCH v2 net-next 5/5] ionic: convert Rx queue buffers to use
page_pool
Hi Brett,
kernel test robot noticed the following build warnings:
[auto build test WARNING on net-next/main]
url: https://github.com/intel-lab-lkp/linux/commits/Brett-Creeley/ionic-debug-line-for-Tx-completion-errors/20240827-024626
base: net-next/main
patch link: https://lore.kernel.org/r/20240826184422.21895-6-brett.creeley%40amd.com
patch subject: [PATCH v2 net-next 5/5] ionic: convert Rx queue buffers to use page_pool
config: powerpc-allyesconfig (https://download.01.org/0day-ci/archive/20240828/202408280648.f6Hb9cX3-lkp@intel.com/config)
compiler: clang version 20.0.0git (https://github.com/llvm/llvm-project 08e5a1de8227512d4774a534b91cb2353cef6284)
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240828/202408280648.f6Hb9cX3-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202408280648.f6Hb9cX3-lkp@intel.com/
All warnings (new ones prefixed by >>):
In file included from drivers/net/ethernet/pensando/ionic/ionic_txrx.c:4:
In file included from include/linux/ip.h:16:
In file included from include/linux/skbuff.h:17:
In file included from include/linux/bvec.h:10:
In file included from include/linux/highmem.h:8:
In file included from include/linux/cacheflush.h:5:
In file included from arch/powerpc/include/asm/cacheflush.h:7:
In file included from include/linux/mm.h:2228:
include/linux/vmstat.h:503:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
503 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
504 | item];
| ~~~~
include/linux/vmstat.h:510:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
510 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
511 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
include/linux/vmstat.h:517:36: warning: arithmetic between different enumeration types ('enum node_stat_item' and 'enum lru_list') [-Wenum-enum-conversion]
517 | return node_stat_name(NR_LRU_BASE + lru) + 3; // skip "nr_"
| ~~~~~~~~~~~ ^ ~~~
include/linux/vmstat.h:523:43: warning: arithmetic between different enumeration types ('enum zone_stat_item' and 'enum numa_stat_item') [-Wenum-enum-conversion]
523 | return vmstat_text[NR_VM_ZONE_STAT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~ ^
524 | NR_VM_NUMA_EVENT_ITEMS +
| ~~~~~~~~~~~~~~~~~~~~~~
>> drivers/net/ethernet/pensando/ionic/ionic_txrx.c:203:30: warning: implicit conversion from 'unsigned long' to 'u16' (aka 'unsigned short') changes value from 65536 to 0 [-Wconstant-conversion]
203 | frag_len = min_t(u16, len, IONIC_PAGE_SIZE);
| ~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~
drivers/net/ethernet/pensando/ionic/ionic_dev.h:184:28: note: expanded from macro 'IONIC_PAGE_SIZE'
184 | #define IONIC_PAGE_SIZE PAGE_SIZE
| ^
arch/powerpc/include/asm/page.h:25:34: note: expanded from macro 'PAGE_SIZE'
25 | #define PAGE_SIZE (ASM_CONST(1) << PAGE_SHIFT)
| ^
include/linux/minmax.h:213:52: note: expanded from macro 'min_t'
213 | #define min_t(type, x, y) __cmp_once(min, type, x, y)
| ~~~~~~~~~~~~~~~~~~~~~~~~~^~
include/linux/minmax.h:96:33: note: expanded from macro '__cmp_once'
96 | __cmp_once_unique(op, type, x, y, __UNIQUE_ID(x_), __UNIQUE_ID(y_))
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/minmax.h:93:31: note: expanded from macro '__cmp_once_unique'
93 | ({ type ux = (x); type uy = (y); __cmp(op, ux, uy); })
| ~~ ^
drivers/net/ethernet/pensando/ionic/ionic_txrx.c:797:36: warning: implicit conversion from 'unsigned long' to 'u16' (aka 'unsigned short') changes value from 65536 to 0 [-Wconstant-conversion]
797 | first_frag_len = min_t(u16, len, IONIC_PAGE_SIZE);
| ~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~
drivers/net/ethernet/pensando/ionic/ionic_dev.h:184:28: note: expanded from macro 'IONIC_PAGE_SIZE'
184 | #define IONIC_PAGE_SIZE PAGE_SIZE
| ^
arch/powerpc/include/asm/page.h:25:34: note: expanded from macro 'PAGE_SIZE'
25 | #define PAGE_SIZE (ASM_CONST(1) << PAGE_SHIFT)
| ^
include/linux/minmax.h:213:52: note: expanded from macro 'min_t'
213 | #define min_t(type, x, y) __cmp_once(min, type, x, y)
| ~~~~~~~~~~~~~~~~~~~~~~~~~^~
include/linux/minmax.h:96:33: note: expanded from macro '__cmp_once'
96 | __cmp_once_unique(op, type, x, y, __UNIQUE_ID(x_), __UNIQUE_ID(y_))
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/minmax.h:93:31: note: expanded from macro '__cmp_once_unique'
93 | ({ type ux = (x); type uy = (y); __cmp(op, ux, uy); })
| ~~ ^
drivers/net/ethernet/pensando/ionic/ionic_txrx.c:832:38: warning: implicit conversion from 'unsigned long' to 'u16' (aka 'unsigned short') changes value from 65536 to 0 [-Wconstant-conversion]
832 | frag_len = min_t(u16, remain_len, IONIC_PAGE_SIZE);
| ~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~
drivers/net/ethernet/pensando/ionic/ionic_dev.h:184:28: note: expanded from macro 'IONIC_PAGE_SIZE'
184 | #define IONIC_PAGE_SIZE PAGE_SIZE
| ^
arch/powerpc/include/asm/page.h:25:34: note: expanded from macro 'PAGE_SIZE'
25 | #define PAGE_SIZE (ASM_CONST(1) << PAGE_SHIFT)
| ^
include/linux/minmax.h:213:52: note: expanded from macro 'min_t'
213 | #define min_t(type, x, y) __cmp_once(min, type, x, y)
| ~~~~~~~~~~~~~~~~~~~~~~~~~^~
include/linux/minmax.h:96:33: note: expanded from macro '__cmp_once'
96 | __cmp_once_unique(op, type, x, y, __UNIQUE_ID(x_), __UNIQUE_ID(y_))
| ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
include/linux/minmax.h:93:31: note: expanded from macro '__cmp_once_unique'
93 | ({ type ux = (x); type uy = (y); __cmp(op, ux, uy); })
| ~~ ^
7 warnings generated.
vim +203 drivers/net/ethernet/pensando/ionic/ionic_txrx.c
174
175 static struct sk_buff *ionic_rx_build_skb(struct ionic_queue *q,
176 struct ionic_rx_desc_info *desc_info,
177 unsigned int headroom,
178 unsigned int len,
179 unsigned int num_sg_elems,
180 bool synced)
181 {
182 struct ionic_buf_info *buf_info;
183 struct sk_buff *skb;
184 unsigned int i;
185 u16 frag_len;
186
187 buf_info = &desc_info->bufs[0];
188 prefetchw(buf_info->page);
189
190 skb = napi_get_frags(&q_to_qcq(q)->napi);
191 if (unlikely(!skb)) {
192 net_warn_ratelimited("%s: SKB alloc failed on %s!\n",
193 dev_name(q->dev), q->name);
194 q_to_rx_stats(q)->alloc_err++;
195 return NULL;
196 }
197 skb_mark_for_recycle(skb);
198
199 if (headroom)
200 frag_len = min_t(u16, len,
201 IONIC_XDP_MAX_LINEAR_MTU + VLAN_ETH_HLEN);
202 else
> 203 frag_len = min_t(u16, len, IONIC_PAGE_SIZE);
204
205 if (unlikely(!buf_info->page))
206 goto err_bad_buf_page;
207 ionic_rx_add_skb_frag(q, skb, buf_info, headroom, frag_len, synced);
208 len -= frag_len;
209 buf_info++;
210
211 for (i = 0; i < num_sg_elems; i++, buf_info++) {
212 if (unlikely(!buf_info->page))
213 goto err_bad_buf_page;
214 frag_len = min_t(u16, len, buf_info->len);
215 ionic_rx_add_skb_frag(q, skb, buf_info, 0, frag_len, synced);
216 len -= frag_len;
217 }
218
219 return skb;
220
221 err_bad_buf_page:
222 dev_kfree_skb(skb);
223 return NULL;
224 }
225
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
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