i40e: Remove back pointer from i40e_hw structure
[ Upstream commit 39ec612a ] The .back field placed in i40e_hw is used to get pointer to i40e_pf instance but it is not necessary as the i40e_hw is a part of i40e_pf and containerof macro can be used to obtain the pointer to i40e_pf. Remove .back field from i40e_hw structure, introduce i40e_hw_to_pf() and i40e_hw_to_dev() helpers and use them. Signed-off-by: Ivan Vecera <ivecera@redhat.com> Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com> Reviewed-by: Jesse Brandeburg <jesse.brandeburg@intel.com> Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@intel.com> Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel) Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com> Stable-dep-of: 6dbdd4de ("e1000e: Workaround for sporadic MDI error on Meteor Lake systems") Signed-off-by: Sasha Levin <sashal@kernel.org>
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