Re: [PATCH 2/4] mips: cm: Add CM GCR and L2-sync base address getters declarations

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On Wed, Feb 21, 2024 at 09:39:58PM +0300, Serge Semin wrote:
> On Tue, Feb 20, 2024 at 06:24:25PM +0100, Thomas Bogendoerfer wrote:
> > On Thu, Feb 15, 2024 at 08:17:27PM +0300, Serge Semin wrote:
> > > Based on the design pattern utilized in the CM GCR and L2-sync base
> > > address getters implementation the platform-specific code is capable to
> > > re-define the getters and re-use the weakly defined initial versions. But
> > > since the re-definition is supposed to be done in another source file the
> > > interface methods have been globally defined which in its turn causes the
> > > "no previous prototype" warning printed should the re-definition is
> > > finally introduced. Since without the global declarations the pattern can
> > > be considered as incomplete and causing the warning printed, fix it by
> > > providing the respective methods prototype declarations in
> > > "arch/mips/include/asm/mips-cm.h".
> > > 
> > > Signed-off-by: Serge Semin <fancer.lancer@xxxxxxxxx>
> > > 
> > > ---
> > > 
> > > Note as I mentioned in the previous patch, since the weak implementation
> > > of the getters isn't utilized other than as a default implementation of
> > > the original methods, we can convert the denoted pattern to a simple
> > > __weak attributed methods. Let me know if that would be more preferable.
> > 
> 
> > how about simply remove __mips_cm_l2sync_phys_base() and do everything
> > via mips_cm_phys_base(). And at the moment without anyone overriding
> > mips_cm_phys_base I tend to keep static without __weak. If someone
> > needs, we can change it. Does this make sense ?
> 
> To be honest my arch code (not submitted yet) do override the
> mips_cm_l2sync_phys_base() method. The memory just behind the CM2

that's fine, I just wanted to know a reason for having it provided as
weak symbol.

> What about instead of that I'll just convert both mips_cm_phys_base()
> and mips_cm_l2sync_phys_base() to being defined with the underscored
> methods body and assign the __weak attribute to them?

works for me ;-) I'll pick patch 3/4 of this series, so no need to
resend them.

Thomas.

-- 
Crap can work. Given enough thrust pigs will fly, but it's not necessarily a
good idea.                                                [ RFC1925, 2.3 ]




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