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authorBrian King <brking@linux.vnet.ibm.com>2017-11-17 11:05:48 -0600
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>2017-11-21 23:48:39 -0800
commit7b8edcc685b5e2c3c37aa13dc50a88e84a5bfef8 (patch)
tree1797b5b7fbca276e4c131b1a5c48b102cdac5f8a /kernel/jump_label.c
parentc4cb99185b4cc96c0a1c70104dc21ae14d7e7f28 (diff)
fm10k: 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 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>
Diffstat (limited to 'kernel/jump_label.c')
0 files changed, 0 insertions, 0 deletions