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* re: atl1c: Atheros L1C Gigabit Ethernet driver
@ 2013-02-15 10:34 Dan Carpenter
  2013-02-15 11:12 ` Dan Carpenter
                   ` (2 more replies)
  0 siblings, 3 replies; 4+ messages in thread
From: Dan Carpenter @ 2013-02-15 10:34 UTC (permalink / raw)
  To: kernel-janitors

Hello Jie Yang,

The patch 43250ddd75a3: "atl1c: Atheros L1C Gigabit Ethernet driver"
from Feb 18, 2009, leads to the following Smatch warning:
"drivers/net/ethernet/atheros/atl1c/atl1c_hw.c:472 atl1c_phy_setup_adv()
	 warn: odd binop '0x300 & 0xfffffffffffffcff'"

[ This check as too many false positives so I haven't released it ]

drivers/net/ethernet/atheros/atl1c/atl1c_hw.c
   472          u16 mii_giga_ctrl_data = GIGA_CR_1000T_DEFAULT_CAP &
   473                                  ~GIGA_CR_1000T_SPEED_MASK;

The defines are set up like this:

#define GIGA_CR_1000T_SPEED_MASK        0x0300
#define GIGA_CR_1000T_DEFAULT_CAP       0x0300

So we're just setting mii_giga_ctrl_data to zero.  It seems odd.  Did
you intend to do the bitwise negate of GIGA_CR_1000T_SPEED_MASK?
They're only used one time so I can't tell from the context what was
intented.

regards,
dan carpenter


^ permalink raw reply	[flat|nested] 4+ messages in thread

end of thread, other threads:[~2013-02-18 23:39 UTC | newest]

Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2013-02-15 10:34 atl1c: Atheros L1C Gigabit Ethernet driver Dan Carpenter
2013-02-15 11:12 ` Dan Carpenter
2013-02-18 21:54 ` J. K. Cliburn
2013-02-18 23:39 ` Huang, Xiong

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