Re: [PATCH 6/6] nx-842-platform: if NX842 platform drivers are not modules, don't try to load them

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On Thu, Jul 02, 2015 at 03:42:26PM -0700, Nishanth Aravamudan wrote:
> Based off the CONFIG_SPU_FS_MODULE code, only attempt to load platform
> modules if the nx-842 pseries/powernv drivers are built as modules.
> 
> Otherwise, if CONFIG_DEV_NX_COMPRESS=y,
> CONFIG_DEV_NX_COMPRESS_PSERIES=y, CONFIG_DEV_NX_POWERNV=y, the following
> message is emitted at boot:
> 
> nx_compress: no nx842 driver found.
> 
> even though the drivers successfully loads.
> 
> This is because in the =y case, the module_init() calls get converted to
> initcalls and the nx842_init() runs before the platform driver
> nx842_pseries_init() or nx842_powernv_init() functions, which are what
> normally set the static platform driver.
> 
> Signed-off-by: Nishanth Aravamudan <nacc@xxxxxxxxxxxxxxxxxx>
> Cc: Dan Streetman <ddstreet@xxxxxxxxxx>
> Cc: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
> Cc: "David S. Miller" <davem@xxxxxxxxxxxxx>
> Cc: linux-crypto@xxxxxxxxxxxxxxx
> Cc: linuxppc-dev@xxxxxxxxxxxxxxxx

Ugh, I think this whole thing is redundant.  The whole point of
the crypto API is to allow the coexistence of multiple underlying
implementations.

Please get rid of nx-842-platform.c completely and move the crypto
registration into the individual platform drivers.  That is, powernv
and pseries should each register their own crypto driver.  They can
of course share a common set of crypto code which can live in its own
module.  There should be no need for mucking with module reference
counts at all.

Thanks,
-- 
Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt
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