On Tue, 14 Mar 2017 17:59:01 +0200 Andy Shevchenko wrote:

On Tue, Mar 14, 2017 at 3:44 PM, Vignesh R [off-list ref] wrote:

quoted

On Monday 13 March 2017 01:35 AM, Andy Shevchenko wrote:  

quoted

On Wed, Mar 8, 2017 at 2:19 PM, Vignesh R [off-list ref] wrote:  

quoted

Passing "serial" as name during request_irq() results in all serial port
irqs have same name. This does not help much to easily identify which
irq belongs to which serial port instance. Therefore pass dev_name()
during request_irq() so that better identifiable name is listed for
serial ports in cat /proc/interrupts output.

Output of cat /proc/interrupts
Before this patch:
 26:        689          0     GICv2 309 Edge      serial
After this patch:
 26:        696          0     GICv2 309 Edge      2530c00.serial  

quoted

 But, this change is making interrupt name more descriptive  

It doesn't in PCI case, it makes it worse.

indeed, in PCI case, I see 

4: ... 00:03.3

what about "dev_driver_string(up->port.dev)[dev_name(up->port.dev)]" as
we did for ahci case?

Thanks