tree:   git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   f5af19d10d151c5a2afae3306578f485c244db25
commit: ef7f0d6a6ca8c9e4b27d78895af86c2fbfaeedb2 x86_64: add KASan support
date:   5 days ago
config: x86_64-randconfig-iv1-02190055 (attached as .config)
reproduce:
  git checkout ef7f0d6a6ca8c9e4b27d78895af86c2fbfaeedb2
  # save the attached .config to linux build tree
  make ARCH=x86_64 

Note: it may well be a FALSE warning. FWIW you are at least aware of it now.

All warnings:

   drivers/net/ethernet/broadcom/tg3.c: In function 'tg3_init_one':
>> drivers/net/ethernet/broadcom/tg3.c:17811:37: warning: array subscript is above array bounds [-Warray-bounds]
      struct tg3_napi *tnapi = &tp->napi[i];
                                        ^
>> drivers/net/ethernet/broadcom/tg3.c:17811:37: warning: array subscript is above array bounds [-Warray-bounds]

vim +17811 drivers/net/ethernet/broadcom/tg3.c

^1da177e drivers/net/tg3.c                   Linus Torvalds 2005-04-16  17795  	    !(tr32(TG3PCI_PCISTATE) & PCISTATE_BUS_SPEED_HIGH)) {
63c3a66f drivers/net/tg3.c                   Joe Perches    2011-04-26  17796  		tg3_flag_set(tp, MAX_RXPEND_64);
^1da177e drivers/net/tg3.c                   Linus Torvalds 2005-04-16  17797  		tp->rx_pending = 63;
^1da177e drivers/net/tg3.c                   Linus Torvalds 2005-04-16  17798  	}
^1da177e drivers/net/tg3.c                   Linus Torvalds 2005-04-16  17799  
^1da177e drivers/net/tg3.c                   Linus Torvalds 2005-04-16  17800  	err = tg3_get_device_address(tp);
^1da177e drivers/net/tg3.c                   Linus Torvalds 2005-04-16  17801  	if (err) {
ab96b241 drivers/net/tg3.c                   Matt Carlson   2010-04-05  17802  		dev_err(&pdev->dev,
ab96b241 drivers/net/tg3.c                   Matt Carlson   2010-04-05  17803  			"Could not obtain valid ethernet address, aborting\n");
c9cab24e drivers/net/tg3.c                   Matt Carlson   2011-07-13  17804  		goto err_out_apeunmap;
c88864df drivers/net/tg3.c                   Matt Carlson   2007-11-12  17805  	}
c88864df drivers/net/tg3.c                   Matt Carlson   2007-11-12  17806  
78f90dcf drivers/net/tg3.c                   Matt Carlson   2009-11-13  17807  	intmbx = MAILBOX_INTERRUPT_0 + TG3_64BIT_REG_LOW;
78f90dcf drivers/net/tg3.c                   Matt Carlson   2009-11-13  17808  	rcvmbx = MAILBOX_RCVRET_CON_IDX_0 + TG3_64BIT_REG_LOW;
78f90dcf drivers/net/tg3.c                   Matt Carlson   2009-11-13  17809  	sndmbx = MAILBOX_SNDHOST_PROD_IDX_0 + TG3_64BIT_REG_LOW;
6fd45cb8 drivers/net/tg3.c                   Matt Carlson   2010-09-15  17810  	for (i = 0; i < tp->irq_max; i++) {
78f90dcf drivers/net/tg3.c                   Matt Carlson   2009-11-13 @17811  		struct tg3_napi *tnapi = &tp->napi[i];
78f90dcf drivers/net/tg3.c                   Matt Carlson   2009-11-13  17812  
78f90dcf drivers/net/tg3.c                   Matt Carlson   2009-11-13  17813  		tnapi->tp = tp;
78f90dcf drivers/net/tg3.c                   Matt Carlson   2009-11-13  17814  		tnapi->tx_pending = TG3_DEF_TX_RING_PENDING;
78f90dcf drivers/net/tg3.c                   Matt Carlson   2009-11-13  17815  
78f90dcf drivers/net/tg3.c                   Matt Carlson   2009-11-13  17816  		tnapi->int_mbox = intmbx;
93a700a9 drivers/net/ethernet/broadcom/tg3.c Matt Carlson   2011-08-31  17817  		if (i <= 4)
78f90dcf drivers/net/tg3.c                   Matt Carlson   2009-11-13  17818  			intmbx += 0x8;
78f90dcf drivers/net/tg3.c                   Matt Carlson   2009-11-13  17819  		else

:::::: The code at line 17811 was first introduced by commit
:::::: 78f90dcf184b8225a24217605c4289f1986451a3 tg3: Move napi_add calls below tg3_get_invariants

:::::: TO: Matt Carlson <mcarlson@broadcom.com>
:::::: CC: David S. Miller <davem@davemloft.net>

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