[PATCH] lmb: notify when adjacent regions are added

[Sughosh Ganu]

On Fri, 18 Oct 2024 at 19:23, Caleb Connolly <caleb.connolly at linaro.org> wrote:
>
> lmb_add_region() returns a positive integer if the added regions causes
> existing regions to be coalesced. We still want to notify the EFI
> subsystem about these added regions though, so adjust lmb_add() to only
> bail on errors.
>
> This fixes EFI memory allocation on boards with adjacent memory banks as is the
> case on several Qualcomm boards like the RB3 Gen 2.
>
> Fixes: 2f6191526a13 (lmb: notify of any changes to the LMB memory map)
> Signed-off-by: Caleb Connolly <caleb.connolly at linaro.org>
> ---

Reviewed-by: Sughosh Ganu <sughosh.ganu at linaro.org>

-sughosh

> Cc: u-boot-qcom at groups.io
> ---
>  lib/lmb.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/lib/lmb.c b/lib/lmb.c
> index 78fe2d4de7c6..7e90f178763b 100644
> --- a/lib/lmb.c
> +++ b/lib/lmb.c
> @@ -486,9 +486,9 @@ long lmb_add(phys_addr_t base, phys_size_t size)
>         long ret;
>         struct alist *lmb_rgn_lst = &lmb.free_mem;
>
>         ret = lmb_add_region(lmb_rgn_lst, base, size);
> -       if (ret)
> +       if (ret < 0)
>                 return ret;
>
>         if (lmb_should_notify(LMB_NONE))
>                 return lmb_map_update_notify(base, size, MAP_OP_ADD);
> --
> 2.46.2
>