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SubjectRe: [PATCH 1/1] smsc: Enabling SMSC LAN911 driver for ARM64 as well.
Hi Manjeet,

[auto build test WARNING on net-next/master]
[also build test WARNING on v4.4 next-20160111]
[if your patch is applied to the wrong git tree, please drop us a note to help improving the system]

url: https://github.com/0day-ci/linux/commits/Manjeet-Pawar/smsc-Enabling-SMSC-LAN911-driver-for-ARM64-as-well/20160111-170643
config: arm64-allmodconfig (attached as .config)
reproduce:
wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# save the attached .config to linux build tree
make.cross ARCH=arm64

All warnings (new ones prefixed by >>):

drivers/net/ethernet/smsc/smc911x.c: In function 'smc911x_hardware_send_pkt':
>> drivers/net/ethernet/smsc/smc911x.c:475:16: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
buf = (char*)((u32)skb->data & ~0x3);
^
>> drivers/net/ethernet/smsc/smc911x.c:475:8: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast]
buf = (char*)((u32)skb->data & ~0x3);
^
drivers/net/ethernet/smsc/smc911x.c:476:25: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
len = (skb->len + 3 + ((u32)skb->data & 3)) & ~0x3;
^
drivers/net/ethernet/smsc/smc911x.c:477:11: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast]
cmdA = (((u32)skb->data & 0x3) << 16) |
^

vim +475 drivers/net/ethernet/smsc/smc911x.c

dcdf8710 drivers/net/ethernet/smsc/smc911x.c Ben Boeckel 2013-11-01 459 DBG(SMC_DEBUG_FUNC | SMC_DEBUG_TX, dev, "--> %s\n", __func__);
0a0c72c9 drivers/net/smc911x.c Dustin McIntire 2006-04-19 460 BUG_ON(lp->pending_tx_skb == NULL);
0a0c72c9 drivers/net/smc911x.c Dustin McIntire 2006-04-19 461
0a0c72c9 drivers/net/smc911x.c Dustin McIntire 2006-04-19 462 skb = lp->pending_tx_skb;
0a0c72c9 drivers/net/smc911x.c Dustin McIntire 2006-04-19 463 lp->pending_tx_skb = NULL;
0a0c72c9 drivers/net/smc911x.c Dustin McIntire 2006-04-19 464
0a0c72c9 drivers/net/smc911x.c Dustin McIntire 2006-04-19 465 /* cmdA {25:24] data alignment [20:16] start offset [10:0] buffer length */
0a0c72c9 drivers/net/smc911x.c Dustin McIntire 2006-04-19 466 /* cmdB {31:16] pkt tag [10:0] length */
0a0c72c9 drivers/net/smc911x.c Dustin McIntire 2006-04-19 467 #ifdef SMC_USE_DMA
0a0c72c9 drivers/net/smc911x.c Dustin McIntire 2006-04-19 468 /* 16 byte buffer alignment mode */
0a0c72c9 drivers/net/smc911x.c Dustin McIntire 2006-04-19 469 buf = (char*)((u32)(skb->data) & ~0xF);
0a0c72c9 drivers/net/smc911x.c Dustin McIntire 2006-04-19 470 len = (skb->len + 0xF + ((u32)skb->data & 0xF)) & ~0xF;
0a0c72c9 drivers/net/smc911x.c Dustin McIntire 2006-04-19 471 cmdA = (1<<24) | (((u32)skb->data & 0xF)<<16) |
0a0c72c9 drivers/net/smc911x.c Dustin McIntire 2006-04-19 472 TX_CMD_A_INT_FIRST_SEG_ | TX_CMD_A_INT_LAST_SEG_ |
0a0c72c9 drivers/net/smc911x.c Dustin McIntire 2006-04-19 473 skb->len;
0a0c72c9 drivers/net/smc911x.c Dustin McIntire 2006-04-19 474 #else
0a0c72c9 drivers/net/smc911x.c Dustin McIntire 2006-04-19 @475 buf = (char*)((u32)skb->data & ~0x3);
0a0c72c9 drivers/net/smc911x.c Dustin McIntire 2006-04-19 476 len = (skb->len + 3 + ((u32)skb->data & 3)) & ~0x3;
0a0c72c9 drivers/net/smc911x.c Dustin McIntire 2006-04-19 477 cmdA = (((u32)skb->data & 0x3) << 16) |
0a0c72c9 drivers/net/smc911x.c Dustin McIntire 2006-04-19 478 TX_CMD_A_INT_FIRST_SEG_ | TX_CMD_A_INT_LAST_SEG_ |
0a0c72c9 drivers/net/smc911x.c Dustin McIntire 2006-04-19 479 skb->len;
0a0c72c9 drivers/net/smc911x.c Dustin McIntire 2006-04-19 480 #endif
0a0c72c9 drivers/net/smc911x.c Dustin McIntire 2006-04-19 481 /* tag is packet length so we can use this in stats update later */
0a0c72c9 drivers/net/smc911x.c Dustin McIntire 2006-04-19 482 cmdB = (skb->len << 16) | (skb->len & 0x7FF);
0a0c72c9 drivers/net/smc911x.c Dustin McIntire 2006-04-19 483

:::::: The code at line 475 was first introduced by commit
:::::: 0a0c72c9118c4e63080eb409f0cfdf15808d23a4 [PATCH] RE: [PATCH 1/1] net driver: Add support for SMSC LAN911x line of ethernet chips

:::::: TO: Dustin McIntire <dustin@sensoria.com>
:::::: CC: Jeff Garzik <jeff@garzik.org>

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