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From: Paul Walmsley <paul.walmsley@sifive.com>
To: satish kumar <gsatish.ldd@gmail.com>
Cc: linux-riscv@lists.infradead.org,
	Paul Walmsley <paul.walmsley@sifive.com>
Subject: Re: [PATCH] RISCV:IRQ: Adds Err column to /proc/interrupts
Date: Mon, 7 Jan 2019 20:17:32 -0800 (PST)	[thread overview]
Message-ID: <alpine.DEB.2.21.9999.1901072013320.14547@viisi.sifive.com> (raw)
In-Reply-To: <CAK1XJzWreGAXY+1x=DGwcfea2Bz51DrYidXJGLiJg3g0UYRWPw@mail.gmail.com>

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On Tue, 8 Jan 2019, satish kumar wrote:

> On Tue, 8 Jan 2019 at 00:09, Paul Walmsley <paul.walmsley@sifive.com> wrote:
> >
> > On Mon, 7 Jan 2019, satish kumar wrote:
> >
> > > On Mon, 7 Jan 2019 at 12:04, Paul Walmsley <paul.walmsley@sifive.com> wrote:
> > >       On Sat, 5 Jan 2019, G SatishKumar wrote:
> > >
> > >       >       This patch adds extra row showing error count to output of
> > >       >       /proc/interrupts using seq_printf().
> > >       >       seq_printf() API is used when printing to /proc/ files as a
> > >       >       helper functions to return formatted output from ‘proc_read’
> > >       >       callback.
> > >       >
> > >       >       It adds Err: row to /proc/interrupts
> > >
> > >       Why?  It's always going to print "0" with this patch.  Does the missing
> > >       line break something?
> > >
> > > It adds extra info in the /proc/interrupts which provides  error count.
> > > It is used for printing information.
> >
> > If this patch kept track of interrupt-related errors, I'd agree.  But if
> > it always prints 0, as it currently does, then there doesn't seem much
> > point?
> Yes, it does. This patch gives information of Interrupt error count
> in all cases .

NAK from me until either

1. the patch is modified to increment the IRQ error count when a bad IRQ 
occurs, or
2. someone finds a common userspace tool that breaks if the "Err:" field 
isn't present

- Paul

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      reply	other threads:[~2019-01-08  4:17 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-01-05 13:51 [PATCH] RISCV:IRQ: Adds Err column to /proc/interrupts G SatishKumar
2019-01-07  6:34 ` Paul Walmsley
     [not found]   ` <CAK1XJzUHgkSe9GODaUHH89b4XD0zW0EvO5RMzt5f7hpWiVsfNg@mail.gmail.com>
2019-01-07 18:39     ` Paul Walmsley
2019-01-08  3:45       ` satish kumar
2019-01-08  4:17         ` Paul Walmsley [this message]

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