https://github.com/torvalds/linux
Revision 7b8edcc685b5e2c3c37aa13dc50a88e84a5bfef8 authored by Brian King on 17 November 2017, 17:05:48 UTC, committed by Jeff Kirsher on 22 November 2017, 07:48:39 UTC
The original issue being fixed in this patch was seen with the ixgbe
driver, but the same issue exists with fm10k 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@vger.kernel.org>
Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Acked-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
1 parent c4cb991
History
Tip revision: 7b8edcc685b5e2c3c37aa13dc50a88e84a5bfef8 authored by Brian King on 17 November 2017, 17:05:48 UTC
fm10k: Use smp_rmb rather than read_barrier_depends
Tip revision: 7b8edcc

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