[Linux-kernel-mentees] [PATCH v1 2/2] qlcninc: use generic power management

Vaibhav Gupta vaibhavgupta40 at gmail.com
Thu Jul 2 17:02:21 UTC 2020


On Thu, Jul 2, 2020 at 10:06 PM Jakub Kicinski <kuba at kernel.org> wrote:
>
> On Thu,  2 Jul 2020 12:06:32 +0530 Vaibhav Gupta wrote:
> > With legacy PM, drivers themselves were responsible for managing the
> > device's power states and takes care of register states. And they use PCI
> > helper functions to do it.
> >
> > After upgrading to the generic structure, PCI core will take care of
> > required tasks and drivers should do only device-specific operations.
> >
> > .suspend() calls __qlcnic_shutdown, which then calls qlcnic_82xx_shutdown;
> > .resume()  calls __qlcnic_resume,   which then calls qlcnic_82xx_resume;
> >
> > Both ...82xx..() are define in
> > drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c and are used only in
> > drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c.
> >
> > Hence upgrade them and remove PCI function calls, like pci_save_state() and
> > pci_enable_wake(), inside them
> >
> > Compile-tested only.
> >
> > Signed-off-by: Vaibhav Gupta <vaibhavgupta40 at gmail.com>
>
> drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c: In function ‘qlcnic_82xx_shutdown’:
> drivers/net/ethernet/qlogic/qlcnic/qlcnic_hw.c:1652:6: warning: unused variable ‘retval’ [-Wunused-variable]
>  1652 |  int retval;
>       |      ^~~~~~
Fixed in v2.
Thanks!

--Vaibhav Gupta


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