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Re: [PATCH v4 2/6] x86/time: move CMOS edge detection into read helper


  • To: Roger Pau Monne <roger.pau@xxxxxxxxxx>
  • From: Jan Beulich <jbeulich@xxxxxxxx>
  • Date: Thu, 5 Sep 2024 17:46:09 +0200
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  • Cc: "Daniel P. Smith" <dpsmith@xxxxxxxxxxxxxxxxxxxx>, Marek Marczykowski-Górecki <marmarek@xxxxxxxxxxxxxxxxxxxxxx>, Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx
  • Delivery-date: Thu, 05 Sep 2024 15:46:28 +0000
  • List-id: Xen developer discussion <xen-devel.lists.xenproject.org>

On 04.09.2024 17:31, Roger Pau Monne wrote:
> Move the logic that ensures the CMOS RTC data is read just after it's been
> updated into the __get_cmos_time() function that does the register reads.  
> This
> requires returning a boolean from __get_cmos_time() to signal whether the read
> has been successfully performed after an update.
> 
> Note that while __get_cmos_time() can be used without waiting for the update
> edge, so far the only caller does wait for it, hence move the code inside of
> the function.
> 
> The goal, albeit not accomplished by this patch, is to be able to split the
> probing and the reading of the CMOS RTC data into two separate functions.
> 
> No functional change intended.
> 
> Signed-off-by: Roger Pau Monné <roger.pau@xxxxxxxxxx>

Acked-by: Jan Beulich <jbeulich@xxxxxxxx>





 


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