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e1000: remove unnecessary clearing of SWSM.SWSM_SMBI

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remove unnecessary clearing of SWSM.SWSM_SMBI when obtaining the SW
semaphore. This was introduced in 951860634f
while adding i210 support and should be now resolved by releasing the
semaphore when no longer needed.

Cc: Marcel Ziswiler <marcel@ziswiler.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Aneesh Bansal <aneesh.bansal@freescale.com>
Cc: Naveen Burmi <NaveenBurmi@freescale.com>
Cc: Po Liu <po.liu@freescale.com>
Cc: Bin Meng <bmeng.cn@gmail.com>
Cc: Alison Wang <alison.wang@freescale.com>
Cc: Reinhard Arlt <reinhard.arlt@esd-electronics.com>
Cc: Shengzhou Liu <Shengzhou.Liu@freescale.com>
Cc: York Sun <yorksun@freescale.com>
Signed-off-by: Tim Harvey <tharvey@gateworks.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Marcel Ziswiler <marcel.ziswiler@toradex.com>
This commit is contained in:
Tim Harvey 2015-05-19 10:01:20 -07:00 committed by Joe Hershberger
parent 3c63dd5302
commit 48b168bbfa
1 changed files with 0 additions and 4 deletions
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4
drivers/net/e1000.c
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@ -996,10 +996,6 @@ e1000_get_software_semaphore(struct e1000_hw *hw)
DEBUGFUNC();
swsm = E1000_READ_REG(hw, SWSM);
swsm &= ~E1000_SWSM_SMBI;
E1000_WRITE_REG(hw, SWSM, swsm);
if (hw->mac_type != e1000_80003es2lan)
return E1000_SUCCESS;