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Re: [PATCH] 8250: option 'force_polling' for buggy IRQs

From Max Staudt <mstaudt@suse.de>
Newsgroups linux.kernel
Subject Re: [PATCH] 8250: option 'force_polling' for buggy IRQs
Date 2016-07-27 14:20 +0200
Message-ID <rZvYB-7Js-19@gated-at.bofh.it> (permalink)
References (1 earlier) <rYSaS-7sC-15@gated-at.bofh.it> <rZ922-1qi-19@gated-at.bofh.it> <rZc9z-3vF-21@gated-at.bofh.it> <rZdfj-47u-1@gated-at.bofh.it> <rZvOV-7FO-3@gated-at.bofh.it>
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On 07/27/2016 02:09 PM, One Thousand Gnomes wrote:
>> I simply thought this patch may be useful for other people as well, that's
>> why I sent it upstream.
> 
> If you set the IRQ to 0 it should poll anyway (0 means 'no IRQ') so I
> don't think the option is needed. At least it seems sufficient to get me
> by when I meet buggy PC BIOSes and the like

That's exactly what the patch does - but if there is already a way to set the
IRQ to 0, I would of course prefer to use that.


It seems I haven't found the trick you're using - could you please tell me how
you set the IRQ to 0?  I can't change it in the BIOS, so I have to do it at
the kernel level at the latest.



Thanks

Max

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Re: [PATCH] 8250: option 'force_polling' for buggy IRQs Max Staudt <mstaudt@suse.de> - 2016-07-26 13:50 +0200
  Re: [PATCH] 8250: option 'force_polling' for buggy IRQs Greg KH <gregkh@linuxfoundation.org> - 2016-07-26 17:10 +0200
    Re: [PATCH] 8250: option 'force_polling' for buggy IRQs Max Staudt <mstaudt@suse.de> - 2016-07-26 18:20 +0200
      Re: [PATCH] 8250: option 'force_polling' for buggy IRQs One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk> - 2016-07-27 14:10 +0200
        Re: [PATCH] 8250: option 'force_polling' for buggy IRQs Max Staudt <mstaudt@suse.de> - 2016-07-27 14:20 +0200
          Re: [PATCH] 8250: option 'force_polling' for buggy IRQs Theodore Ts'o <tytso@mit.edu> - 2016-07-27 15:40 +0200
            Re: [PATCH] 8250: option 'force_polling' for buggy IRQs One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk> - 2016-07-27 22:10 +0200
            Re: [PATCH] 8250: option 'force_polling' for buggy IRQs Max Staudt <mstaudt@suse.de> - 2016-07-28 12:00 +0200
              Re: [PATCH] 8250: option 'force_polling' for buggy IRQs Greg KH <gregkh@linuxfoundation.org> - 2016-07-28 16:50 +0200
                Re: [PATCH] 8250: option 'force_polling' for buggy IRQs Theodore Ts'o <tytso@mit.edu> - 2016-07-28 18:10 +0200
              Re: [PATCH] 8250: option 'force_polling' for buggy IRQs ebiederm@xmission.com (Eric W. Biederman) - 2016-07-28 21:00 +0200
                Re: [PATCH] 8250: option 'force_polling' for buggy IRQs One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk> - 2016-07-29 11:30 +0200
                Re: [PATCH] 8250: option 'force_polling' for buggy IRQs Max Staudt <mstaudt@suse.de> - 2016-07-29 12:00 +0200
                Re: [PATCH] 8250: option 'force_polling' for buggy IRQs ebiederm@xmission.com (Eric W. Biederman) - 2016-07-29 20:00 +0200
                Re: [PATCH] 8250: option 'force_polling' for buggy IRQs One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk> - 2016-08-01 17:30 +0200

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