* [linux-next:master 11173/13554] drivers/net/ethernet/mediatek/mtk_star_emac.c:749:29: warning: variable 'desc' set but not used
@ 2020-05-29 1:39 kbuild test robot
0 siblings, 0 replies; only message in thread
From: kbuild test robot @ 2020-05-29 1:39 UTC (permalink / raw)
To: kbuild-all
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Hi Bartosz,
FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head: ff387fc20c697cdc887b2abf7ef494e853795a2f
commit: 8c7bd5a454ffc2b0518d1499c4af95f00291d2af [11173/13554] net: ethernet: mtk-star-emac: new driver
config: arm64-allyesconfig (attached as .config)
compiler: aarch64-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
git checkout 8c7bd5a454ffc2b0518d1499c4af95f00291d2af
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arm64
If you fix the issue, kindly add following tag as appropriate
Reported-by: kbuild test robot <lkp@intel.com>
All warnings (new ones prefixed by >>, old ones prefixed by <<):
drivers/net/ethernet/mediatek/mtk_star_emac.c: In function 'mtk_star_ring_free_skbs':
>> drivers/net/ethernet/mediatek/mtk_star_emac.c:749:29: warning: variable 'desc' set but not used [-Wunused-but-set-variable]
749 | struct mtk_star_ring_desc *desc;
| ^~~~
vim +/desc +749 drivers/net/ethernet/mediatek/mtk_star_emac.c
742
743 static void
744 mtk_star_ring_free_skbs(struct mtk_star_priv *priv, struct mtk_star_ring *ring,
745 void (*unmap_func)(struct mtk_star_priv *,
746 struct mtk_star_ring_desc_data *))
747 {
748 struct mtk_star_ring_desc_data desc_data;
> 749 struct mtk_star_ring_desc *desc;
750 int i;
751
752 for (i = 0; i < MTK_STAR_RING_NUM_DESCS; i++) {
753 if (!ring->dma_addrs[i])
754 continue;
755
756 desc = &ring->descs[i];
757
758 desc_data.dma_addr = ring->dma_addrs[i];
759 desc_data.skb = ring->skbs[i];
760
761 unmap_func(priv, &desc_data);
762 dev_kfree_skb(desc_data.skb);
763 }
764 }
765
---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org
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2020-05-29 1:39 [linux-next:master 11173/13554] drivers/net/ethernet/mediatek/mtk_star_emac.c:749:29: warning: variable 'desc' set but not used kbuild test robot
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