Messages in this thread Patch in this message | | | From | Andi Kleen <> | Subject | [PATCH 56/74] lto, workaround: Add workaround for missing LTO symbols in igb | Date | Sat, 18 Aug 2012 19:56:52 -0700 |
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From: Andi Kleen <ak@linux.intel.com>
The gcc 4.7 LTO with -fno-toplevel-reorder sometimes drops data variables. These show up as undefined symbols at link time. As a workaround just make a few where it happened visible for now.
There isl nothing wrong with this driver, just a toolchain problem.
Signed-off-by: Andi Kleen <ak@linux.intel.com> --- drivers/net/ethernet/intel/igb/e1000_82575.c | 7 ++++--- 1 files changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/net/ethernet/intel/igb/e1000_82575.c b/drivers/net/ethernet/intel/igb/e1000_82575.c index ba994fb..86b985a 100644 --- a/drivers/net/ethernet/intel/igb/e1000_82575.c +++ b/drivers/net/ethernet/intel/igb/e1000_82575.c @@ -2254,7 +2254,8 @@ out: return ret_val; } -static struct e1000_mac_operations e1000_mac_ops_82575 = { +/* Workaround for LTO bug */ +__visible struct e1000_mac_operations e1000_mac_ops_82575 = { .init_hw = igb_init_hw_82575, .check_for_link = igb_check_for_link_82575, .rar_set = igb_rar_set, @@ -2262,13 +2263,13 @@ static struct e1000_mac_operations e1000_mac_ops_82575 = { .get_speed_and_duplex = igb_get_speed_and_duplex_copper, }; -static struct e1000_phy_operations e1000_phy_ops_82575 = { +__visible struct e1000_phy_operations e1000_phy_ops_82575 = { .acquire = igb_acquire_phy_82575, .get_cfg_done = igb_get_cfg_done_82575, .release = igb_release_phy_82575, }; -static struct e1000_nvm_operations e1000_nvm_ops_82575 = { +__visible struct e1000_nvm_operations e1000_nvm_ops_82575 = { .acquire = igb_acquire_nvm_82575, .read = igb_read_nvm_eerd, .release = igb_release_nvm_82575, -- 1.7.7.6
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