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SubjectRe: [PATCH v4 33/36] net: faraday add nds32 support.
Hi Greentime,

I love your patch! Perhaps something to improve:

[auto build test WARNING on tip/timers/core]
[cannot apply to linus/master v4.15-rc4 next-20171220]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]

url: https://github.com/0day-ci/linux/commits/Greentime-Hu/Andes-nds32-Linux-Kernel/20171220-155937
config: sparc64-allyesconfig (attached as .config)
compiler: sparc64-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
make.cross ARCH=sparc64

All warnings (new ones prefixed by >>):

drivers/net/ethernet/faraday/ftmac100.c: In function 'ftmac100_rxdes_set_page':
>> drivers/net/ethernet/faraday/ftmac100.c:288:18: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
rxdes->rxdes3 = (unsigned int)page;
^
drivers/net/ethernet/faraday/ftmac100.c: In function 'ftmac100_rxdes_get_page':
>> drivers/net/ethernet/faraday/ftmac100.c:293:9: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
return (struct page *)rxdes->rxdes3;
^
drivers/net/ethernet/faraday/ftmac100.c: In function 'ftmac100_txdes_set_skb':
drivers/net/ethernet/faraday/ftmac100.c:548:18: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
txdes->txdes3 = (unsigned int)skb;
^
drivers/net/ethernet/faraday/ftmac100.c: In function 'ftmac100_txdes_get_skb':
drivers/net/ethernet/faraday/ftmac100.c:553:9: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
return (struct sk_buff *)txdes->txdes3;
^

vim +288 drivers/net/ethernet/faraday/ftmac100.c

8d77c036 drivers/net/ftmac100.c Po-Yu Chuang 2011-02-28 281
8d77c036 drivers/net/ftmac100.c Po-Yu Chuang 2011-02-28 282 /*
8d77c036 drivers/net/ftmac100.c Po-Yu Chuang 2011-02-28 283 * rxdes3 is not used by hardware. We use it to keep track of page.
8d77c036 drivers/net/ftmac100.c Po-Yu Chuang 2011-02-28 284 * Since hardware does not touch it, we can skip cpu_to_le32()/le32_to_cpu().
8d77c036 drivers/net/ftmac100.c Po-Yu Chuang 2011-02-28 285 */
8d77c036 drivers/net/ftmac100.c Po-Yu Chuang 2011-02-28 286 static void ftmac100_rxdes_set_page(struct ftmac100_rxdes *rxdes, struct page *page)
8d77c036 drivers/net/ftmac100.c Po-Yu Chuang 2011-02-28 287 {
8d77c036 drivers/net/ftmac100.c Po-Yu Chuang 2011-02-28 @288 rxdes->rxdes3 = (unsigned int)page;
8d77c036 drivers/net/ftmac100.c Po-Yu Chuang 2011-02-28 289 }
8d77c036 drivers/net/ftmac100.c Po-Yu Chuang 2011-02-28 290
8d77c036 drivers/net/ftmac100.c Po-Yu Chuang 2011-02-28 291 static struct page *ftmac100_rxdes_get_page(struct ftmac100_rxdes *rxdes)
8d77c036 drivers/net/ftmac100.c Po-Yu Chuang 2011-02-28 292 {
8d77c036 drivers/net/ftmac100.c Po-Yu Chuang 2011-02-28 @293 return (struct page *)rxdes->rxdes3;
8d77c036 drivers/net/ftmac100.c Po-Yu Chuang 2011-02-28 294 }
8d77c036 drivers/net/ftmac100.c Po-Yu Chuang 2011-02-28 295

:::::: The code at line 288 was first introduced by commit
:::::: 8d77c036b57cf813d838f859e11b6a188acdb1fb net: add Faraday FTMAC100 10/100 Ethernet driver

:::::: TO: Po-Yu Chuang <ratbert@faraday-tech.com>
:::::: CC: David S. Miller <davem@davemloft.net>

---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
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