Re: [PATCH master] resource: fix recently broken memory bank fusing

[Ian Abbott <abbotti@mev.co.uk>]

On 17/10/2022 14:39, Ahmad Fatoum wrote:
> barebox will fuse overlapping memory banks to avoid the common issue of
> the device tree being modified upstream to contain a minimum RAM size
> that would then conflict with a RAM size barebox determines by
> querying the memory controller. This was recently broken, because we
> changed memory banks to have IORESOURCE_MEM in their flags field,
> but resource_contains() used to compare regions won't return true if
> memory type differs. Fix this by settings .flags = IORESOURCE_MEM
> for the new resource as well.
> 
> Reported-by: Ian Abbott <abbotti@mev.co.uk>
> Fixes: d0b5f6bde15b ("of: reserved-mem: reserve regions prior to mmu_initcall()")
> Signed-off-by: Ahmad Fatoum <a.fatoum@pengutronix.de>
> ---
>   common/memory.c | 1 +
>   1 file changed, 1 insertion(+)
> 
> diff --git a/common/memory.c b/common/memory.c
> index 7e24ecb2bd03..0ae9e7383cce 100644
> --- a/common/memory.c
> +++ b/common/memory.c
> @@ -149,6 +149,7 @@ int barebox_add_memory_bank(const char *name, resource_size_t start,
>   	struct resource newres = {
>   		.start = start,
>   		.end = start + size - 1,
> +		.flags = IORESOURCE_MEM,
>   	};
>   
>   	for_each_memory_bank(bank) {

Tested-by: Ian Abbott <abbotti@mev.co.uk>

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