i40e: protect ring accesses with READ- and WRITE_ONCE

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READ_ONCE should be used when reading rings prior to accessing the
statistics pointer. Introduce this as well as the corresponding WRITE_ONCE
usage when allocating and freeing the rings, to ensure protected access.

Signed-off-by: Ciara Loftus <ciara.loftus@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>

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Ciara Loftus 2020-06-09 13:19:44 +00:00 • committed by Jeff Kirsher

parent f140ad9fe2

commit d59e267912

1 changed files with 19 additions and 10 deletions

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drivers/net/ethernet/intel/i40e/i40e_main.c

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