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Date: Thu, 20 Dec 2018 16:21:11 +0100 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: Guenter Roeck <linux@...ck-us.net> Cc: Florian Fainelli <f.fainelli@...il.com>, linux-kernel@...r.kernel.org Subject: Re: [PATCH] serial: 8250: Default SERIAL_OF_PLATFORM to SERIAL_8250 On Wed, Nov 14, 2018 at 05:11:25PM -0800, Guenter Roeck wrote: > On Thu, Nov 01, 2018 at 11:26:06AM -0700, Florian Fainelli wrote: > > It is way too easy to miss enabling SERIAL_OF_PLATFORM which would > > result in the inability for the kernel to have a valid console device, > > which can be seen with: > > > > Warning: unable to open an initial console. > > > > and then: > > > > Run /init as init process > > Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000100 > > > > Since SERIAL_OF_PLATFORM already depends on SERIAL_8250 && OF there > > really is no drawback to defaulting this config to the value of > > SERIAL_8250. > > > > Signed-off-by: Florian Fainelli <f.fainelli@...il.com> > > Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org> > > This patch results in situations where CONFIG_SERIAL_OF_PLATFORM is now > defined where it was not previously. Example mpc85xx_defconfig. This in > turn results in boot failures for those configurations, with an error > message of > > of_serial: probe of e0004500.serial failed with error -22 > > which wasn't seen before. > > Not sure if replacing a potential problem with a real one is really an > improvement.` What ever was the result of this long thread? Should I revert something? Or was a patch proposed? totally lost, greg k-h
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