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| Started by | Vignesh R <vigneshr@ti.com> |
|---|---|
| First post | 2017-03-08 13:30 +0100 |
| Last post | 2017-03-12 21:10 +0100 |
| Articles | 4 — 3 participants |
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[PATCH] serial: 8250: 8250_core: Use dev_name() during request_irq() Vignesh R <vigneshr@ti.com> - 2017-03-08 13:30 +0100
Re: [PATCH] serial: 8250: 8250_core: Use dev_name() during request_irq() Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2017-03-08 13:40 +0100
Re: [PATCH] serial: 8250: 8250_core: Use dev_name() during request_irq() Vignesh R <vigneshr@ti.com> - 2017-03-09 15:50 +0100
Re: [PATCH] serial: 8250: 8250_core: Use dev_name() during request_irq() Andy Shevchenko <andy.shevchenko@gmail.com> - 2017-03-12 21:10 +0100
| From | Vignesh R <vigneshr@ti.com> |
|---|---|
| Date | 2017-03-08 13:30 +0100 |
| Subject | [PATCH] serial: 8250: 8250_core: Use dev_name() during request_irq() |
| Message-ID | <tiIT8-6v2-15@gated-at.bofh.it> |
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 Signed-off-by: Vignesh R <vigneshr@ti.com> --- drivers/tty/serial/8250/8250_core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8250/8250_core.c index 76e03a7de9cc..f83b69f30987 100644 --- a/drivers/tty/serial/8250/8250_core.c +++ b/drivers/tty/serial/8250/8250_core.c @@ -218,7 +218,7 @@ static int serial_link_irq_chain(struct uart_8250_port *up) spin_unlock_irq(&i->lock); irq_flags |= up->port.irqflags; ret = request_irq(up->port.irq, serial8250_interrupt, - irq_flags, "serial", i); + irq_flags, dev_name(up->port.dev), i); if (ret < 0) serial_do_unlink(i, up); } -- 2.11.0
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| From | Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
|---|---|
| Date | 2017-03-08 13:40 +0100 |
| Subject | Re: [PATCH] serial: 8250: 8250_core: Use dev_name() during request_irq() |
| Message-ID | <tiJ2N-6yt-1@gated-at.bofh.it> |
| In reply to | #1595111 |
On Wed, Mar 08, 2017 at 05:49:43PM +0530, Vignesh R wrote: > 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 > > Signed-off-by: Vignesh R <vigneshr@ti.com> I need a "full" name here, unless you really do sign legal documents with just one letter as a last/sur-name? thanks, greg k-h
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| From | Vignesh R <vigneshr@ti.com> |
|---|---|
| Date | 2017-03-09 15:50 +0100 |
| Subject | Re: [PATCH] serial: 8250: 8250_core: Use dev_name() during request_irq() |
| Message-ID | <tj7ya-6vj-31@gated-at.bofh.it> |
| In reply to | #1595116 |
Hi, On Wednesday 08 March 2017 06:04 PM, Greg Kroah-Hartman wrote: > On Wed, Mar 08, 2017 at 05:49:43PM +0530, Vignesh R wrote: >> 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 >> >> Signed-off-by: Vignesh R <vigneshr@ti.com> > > I need a "full" name here, unless you really do sign legal documents > with just one letter as a last/sur-name? > Its perfectly alright not to expand surname here in India. FWIW, my ID cards also have the same name. I have been contributing to the kernel with above Signed-off-by line in the past and would want to continue to use the same. -- Regards Vignesh
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| From | Andy Shevchenko <andy.shevchenko@gmail.com> |
|---|---|
| Date | 2017-03-12 21:10 +0100 |
| Message-ID | <tkhYt-6pU-7@gated-at.bofh.it> |
| In reply to | #1595111 |
On Wed, Mar 8, 2017 at 2:19 PM, Vignesh R <vigneshr@ti.com> wrote: > 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 I don't know if it worth to mention that some (testing) tools may depend on this name. Besides that imagine what would be the name of PCI device here. I would suggest adding ID if you need one in a form like "serial%d", where ID may or may not be supplied by the actual 8250 drivers. > > Signed-off-by: Vignesh R <vigneshr@ti.com> > --- > drivers/tty/serial/8250/8250_core.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/tty/serial/8250/8250_core.c b/drivers/tty/serial/8250/8250_core.c > index 76e03a7de9cc..f83b69f30987 100644 > --- a/drivers/tty/serial/8250/8250_core.c > +++ b/drivers/tty/serial/8250/8250_core.c > @@ -218,7 +218,7 @@ static int serial_link_irq_chain(struct uart_8250_port *up) > spin_unlock_irq(&i->lock); > irq_flags |= up->port.irqflags; > ret = request_irq(up->port.irq, serial8250_interrupt, > - irq_flags, "serial", i); > + irq_flags, dev_name(up->port.dev), i); > if (ret < 0) > serial_do_unlink(i, up); > } > -- > 2.11.0 > -- With Best Regards, Andy Shevchenko
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