Thu, Feb 15, 2024 at 08:17:26PM +0300, Serge Semin kirjoitti:
> The __mips_cm_l2sync_phys_base() and mips_cm_l2sync_phys_base() couple was
> introduced in commit 9f98f3dd0c51 ("MIPS: Add generic CM probe & access
> code") where the former method was a weak implementation of the later
> function. Such design pattern permitted to re-define the original method
> and use the weak implementation in the new function. A similar approach
> was introduced in the framework of another arch-specific programmable
> interface: mips_cm_phys_base() and __mips_cm_phys_base(). The only
> difference is that the underscored method of the later couple was declared
> in the "asm/mips-cm.h" header file, but it wasn't done for the CM L2-sync
> methods in the subject. Due to the missing the global function declaration
> the "missing prototype" warning was spotted in the framework of the commit
> 9a2036724cd6 ("mips: mark local function static if possible") and fixed
> just be re-qualifying the weak method as static. Doing that broke what was
> originally implied by having the weak implementation globally defined. Fix
> that by dropping the static qualifier and adding the
> __mips_cm_l2sync_phys_base() prototype declared in the "asm/mips-cm.h"
> header file.
...
> +/**
> + * __mips_cm_l2sync_phys_base - retrieve the physical base address of the CM
> + * L2-sync region
> + *
> + * This function returns the physical base address of the Coherence Manager
> + * L2-cache only region. It provides a default implementation which reads the
> + * CMGCRL2OnlySyncBase register where available or returns a 4K region just
> + * behind the CM GCR base address. It may be overridden by platforms which
> + * determine this address in a different way by defining a function with the
> + * same prototype except for the name mips_cm_l2sync_phys_base (without
> + * underscores).
> + */
> +extern phys_addr_t __mips_cm_l2sync_phys_base(void);
I'm wondering if you run
scripts/kernel-doc -v -none -Wall ...
against this file. I believe it will complain that you missed Return section.
--
With Best Regards,
Andy Shevchenko
