[U-Boot] [PATCH v1 1/4] mmc: omap_hsmmc: do not embed struct mmc in struct omap_hsmmc_plat

[Simon Glass]

Hi Jean-Jacques,

On 22 February 2018 at 03:25, Jean-Jacques Hiblot <jjhiblot at ti.com> wrote:
> The area for struct mmc can be allocated dynamically. It greatly reduces
> the size of struct omap_hsmmc_plat. This is useful in cases where the board
> level code declares one or two struct omap_hsmmc_plat because it doesn't
> use the Driver Model.
>
> This saves around 740 bytes for the am335x_evm SPL.
>
> Signed-off-by: Jean-Jacques Hiblot <jjhiblot at ti.com>
> ---
>
>  arch/arm/include/asm/omap_mmc.h | 2 +-
>  drivers/mmc/omap_hsmmc.c        | 6 +++---
>  2 files changed, 4 insertions(+), 4 deletions(-)
>

Reviewed-by: Simon Glass <sjg at chromium.org>

I would like to understand why this saves memory though. Presumably
the pointer has to point to a real struct anyway, which uses memory.
So how does this help?

- Simon