[PATCH 8/9] ARM: multi_v7_defconfig: Add options to support TQMLS102xA series

Russell King (Oracle) linux at armlinux.org.uk
Sat Jan 21 14:33:32 PST 2023


On Sat, Jan 21, 2023 at 09:27:52PM +0100, Krzysztof Kozlowski wrote:
> On 20/01/2023 15:57, Russell King (Oracle) wrote:
> > Clearly, "defconfig=y is only for critical stuff" is rather false in
> > practice, and I suspect is little more than a desire rather than a
> > rule. I suspect it's more "defconfig=y is for stuff that makes most
> > platforms successfully boot without an initramfs".
> 
> Yes, that's true, although there was already pushback against this.
> Having an initramfs is not a big deal and nowadays I think all new ARMv8
> platforms use it.
> 
> Anyway this talk here is about RTC which is not needed at all as built in.

Provided NFS doesn't repeat XIDs at boot (which it used to when the
kernel had no idea what the TOD is.)

I believe the NFS standard allows NFS servers to repeat their response
to a repeated XID even if the request is different... which used to
cause chaos for me with a machine that has no RTC and boots using NFS
root. So just be aware that if the NFS XID is still dependent on TOD,
then not having RTCs loaded can cause chaos.

-- 
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