[v2,3/7] lib: rsa: distinguish between tpl and spl for CONFIG_RSA_VERIFY

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.

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>
---
changes in v2:
- fix typo "distinguis(h)"

 lib/rsa/Makefile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

On 2020/4/21 ??8:23, Heiko Stuebner 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.
>
> 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>

Thanks,
- Kever
> ---
> changes in v2:
> - fix typo "distinguis(h)"
>
>   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