i40e: Check if the BAR size is large enough before writing to registers
authorAdam Ludkiewicz <adam.ludkiewicz@intel.com>
Wed, 24 Apr 2019 12:20:53 +0000 (05:20 -0700)
committerJeff Kirsher <jeffrey.t.kirsher@intel.com>
Fri, 14 Jun 2019 20:03:27 +0000 (13:03 -0700)
commitfefa9cfddf29a7c76ab052d13c2ef7170d9d6511
tree7634b15074130761e1b45e82e3119563f5b4206e
parentc1041d07043748460f215386b760f3943f6890bb
i40e: Check if the BAR size is large enough before writing to registers

This patch fixes the problem with a kernel panic occurring when trying
to bind the i40e driver to a non-i40e port. The problem is fixed by
checking if the BAR size in the device is large enough by reading the
highest register.

Signed-off-by: Adam Ludkiewicz <adam.ludkiewicz@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
drivers/net/ethernet/intel/i40e/i40e_main.c