On Fri, Dec 16, 2022 at 10:31:38AM +0000, Tharunkumar.Pasumarthi@xxxxxxxxxxxxx wrote: > > From: Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> > > Sent: Friday, December 16, 2022 3:09 PM > > To: Tharunkumar Pasumarthi - I67821 > > <Tharunkumar.Pasumarthi@xxxxxxxxxxxxx> > > Subject: Re: [PATCH v9 tty-next 2/4] serial: 8250_pci1xxxx: Add driver for > > quad-uart support > > > > > From this sequence, it seemed like, kernel takes care of freeing irq > > > and calling pci_free_irq_vectors is not required. > > > > Technically you are correct, but... read this discussion, and pay attention to > > what Christoph said there: > > > > https://lore.kernel.org/linux-serial/0250c46e-da6c-71f3-50ae- > > b7c17fd0bd2c@xxxxxxxxxxx/ > > Okay, got it. Will use pci_free_irq_vectors. Also, do you suggest using > pci_enable_device instead of pcim_enable_device (to maintain consistency of > using non managed APIs throughout driver)? Up to you. I don't see any issues with devm_ and pcim_ APIs, you can get my opinion from the very same discussion and also another which tried to pursue pcim_alloc_irq_vectors(). -- With Best Regards, Andy Shevchenko