[PATCH v3 1/4] lib: rsa: distinguish between tpl and spl for CONFIG_RSA_VERIFY

[Philipp Tomsich]

> On 18.05.2020, at 18:06, Heiko Stuebner <heiko at sntech.de> wrote:
> 
> From: Heiko Stuebner <heiko.stuebner at theobroma-systems.com>
> 
> While the SPL may want to do signature checking this won't be
> the case for TPL in all cases, as TPL is mostly used when the
> amound of initial memory is not enough for a full SPL.

nit: amound -> amount

> So on a system where SPL uses DM but TPL does not we currently
> end up with a TPL compile error of:
> 
>    lib/rsa/rsa-verify.c:48:25: error: dereferencing pointer to incomplete type ‘struct checksum_algo’
> 
> To prevent that change the $(SPL_) to $(SPL_TPL_) to distinguish
> between both. If someone really needs FIT signature checking in
> TPL as well, a new TPL_RSA_VERIFY config symbol needs to be added.
> 
> Signed-off-by: Heiko Stuebner <heiko.stuebner at theobroma-systems.com>
> Reviewed-by: Philipp Tomsich <philipp.tomsich at theobroma-systems.com>
> Reviewed-by: Kever Yang <kever.yang at rock-chips.com>
> ---
> changes in v2:
> - fix typo "distinguis(h)"
> 
> I've split out the build fixes from the signature series.
> It would be cool to get these applied already, as they do
> fix actual issues to be seen when enabling signature support
> in spl.
> 
> 
> lib/rsa/Makefile | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/lib/rsa/Makefile b/lib/rsa/Makefile
> index 14ed3cb401..c61ebfd79e 100644
> --- a/lib/rsa/Makefile
> +++ b/lib/rsa/Makefile
> @@ -5,6 +5,6 @@
> # (C) Copyright 2000-2007
> # Wolfgang Denk, DENX Software Engineering, wd at denx.de.
> 
> -obj-$(CONFIG_$(SPL_)RSA_VERIFY) += rsa-verify.o rsa-checksum.o
> +obj-$(CONFIG_$(SPL_TPL_)RSA_VERIFY) += rsa-verify.o rsa-checksum.o
> obj-$(CONFIG_RSA_VERIFY_WITH_PKEY) += rsa-keyprop.o
> obj-$(CONFIG_RSA_SOFTWARE_EXP) += rsa-mod-exp.o
> -- 
> 2.25.1
>