> From: Intel-wired-lan [mailto:intel-wired-lan-bounces@xxxxxxxxxx] On Behalf > Of Brian King > Sent: Friday, November 17, 2017 9:06 AM > Cc: muvic@xxxxxxxxxxxxxxxxxx; stable@xxxxxxxxxxxxxxx; intel-wired- > lan@xxxxxxxxxxxxxxxx; brking@xxxxxxxxx > Subject: [Intel-wired-lan] [PATCH v2 5/7] igb: Use smp_rmb rather than > read_barrier_depends > > The original issue being fixed in this patch was seen with the ixgbe > driver, but the same issue exists with igb as well, as the code is > very similar. read_barrier_depends is not sufficient to ensure > loads following it are not speculatively loaded out of order > by the CPU, which can result in stale data being loaded, causing > potential system crashes. > > Cc: stable<stable@xxxxxxxxxxxxxxx> > Signed-off-by: Brian King <brking@xxxxxxxxxxxxxxxxxx> > --- > drivers/net/ethernet/intel/igb/igb_main.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) Tested-by: Aaron Brown <aaron.f.brown@xxxxxxxxx>