[PATCH 02/11] swiotlb: make swiotlb_exit a no-op if SWIOTLB_FORCE is set

[Anshuman Khandual]

On 2/22/22 9:05 PM, Christoph Hellwig wrote:
> If force bouncing is enabled we can't release the bufffers.

typo							^^^^

> 
> Signed-off-by: Christoph Hellwig <hch at lst.de>
> ---
>  kernel/dma/swiotlb.c | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/kernel/dma/swiotlb.c b/kernel/dma/swiotlb.c
> index f1e7ea160b433..36fbf1181d285 100644
> --- a/kernel/dma/swiotlb.c
> +++ b/kernel/dma/swiotlb.c
> @@ -378,6 +378,9 @@ void __init swiotlb_exit(void)
>  	unsigned long tbl_vaddr;
>  	size_t tbl_size, slots_size;
>  
> +	if (swiotlb_force == SWIOTLB_FORCE)
> +		return;
> +
>  	if (!mem->nslabs)
>  		return;
>  
> 

Reviewed-by: Anshuman Khandual <anshuman.khandual at arm.com>