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Message-ID: <alpine.LFD.2.01.0905130755090.3343@localhost.localdomain> Date: Wed, 13 May 2009 07:58:20 -0700 (PDT) From: Linus Torvalds <torvalds@...ux-foundation.org> To: Alan Cox <alan@...rguk.ukuu.org.uk> cc: dsaxena@...xity.net, linux-serial@...r.kernel.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH] 8250: Don't restore NS16550 mode when console suspend is disabled On Wed, 13 May 2009, Alan Cox wrote: > > Then hard coding is no improvement either. It needs to restore the mode > that was present at suspend. Alan, you're missing the fact that this is a special-case for "this is the console, and we're not suspending consoles AT ALL". IOW, it was never suspended either, and it's a case that is known to be fundamentally buggy (we're suspending all the PCI bridges, but not a serial device that may be behind them!), but often work in _practice_ (because people don't use this thing for random serial devices, but for things like integrated serial lines that don't lose power). So we _could_ just save the mode, but that isn't really what this patch is all about. The patch in question is about a total hack to avoid touching a piece of hardware that we simply don't consider normal. Linus -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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