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e1000: clean LTO warnings

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During LTO build compiler reports some 'false positive' warnings about
variables being possibly used uninitialized.  This patch silences these
warnings.

Exemplary compiler warning to suppress (with LTO enabled):
error: 'link' may be used uninitialized in this function
[-Werror=maybe-uninitialized]
  if (link) {

Signed-off-by: Andrzej Ostruszka <aostruszka@marvell.com>

Approved by:	imp
Obtained from:	DPDK (46136031f19107f4e9b6b3a952cb7f57877a7f0f)
MFC after:	1 week

(cherry picked from commit 089cdb3990)
This commit is contained in:
Andrzej Ostruszka 2019-11-07 16:03:15 +01:00 committed by Kevin Bowling
parent 713e66e37d
commit b9fadaa375
3 changed files with 3 additions and 3 deletions
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2
sys/dev/e1000/e1000_82543.c
View file

@ -1062,7 +1062,7 @@ static s32 e1000_setup_copper_link_82543(struct e1000_hw *hw)
{
u32 ctrl;
s32 ret_val;
bool link;
bool link = true;
DEBUGFUNC("e1000_setup_copper_link_82543");

2
sys/dev/e1000/e1000_ich8lan.c
View file

@ -5620,7 +5620,7 @@ void e1000_igp3_phy_powerdown_workaround_ich8lan(struct e1000_hw *hw)
void e1000_gig_downshift_workaround_ich8lan(struct e1000_hw *hw)
{
s32 ret_val;
u16 reg_data;
u16 reg_data = 0;
DEBUGFUNC("e1000_gig_downshift_workaround_ich8lan");

2
sys/dev/e1000/e1000_phy.c
View file

@ -1695,7 +1695,7 @@ s32 e1000_copper_link_autoneg(struct e1000_hw *hw)
s32 e1000_setup_copper_link_generic(struct e1000_hw *hw)
{
s32 ret_val;
bool link;
bool link = true;
DEBUGFUNC("e1000_setup_copper_link_generic");