Re: [PATCH 6/6] soc: qcom: smem: check sooner in qcom_smem_set_global_partition()

[Bjorn Andersson]

On Tue 10 Apr 15:25 PDT 2018, Alex Elder wrote:

> There's no sense in scanning the partition table again if we know
> the global partition has already been discovered.  Check for a
> non-null global_partition pointer in qcom_smem_set_global_partition()
> immediately.
> 
> Signed-off-by: Alex Elder <elder@xxxxxxxxxx>

Reviewed-by: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx>

Regards,
Bjorn

> ---
>  drivers/soc/qcom/smem.c | 10 +++++-----
>  1 file changed, 5 insertions(+), 5 deletions(-)
> 
> diff --git a/drivers/soc/qcom/smem.c b/drivers/soc/qcom/smem.c
> index 6e42599b70d4..7d9a43da5084 100644
> --- a/drivers/soc/qcom/smem.c
> +++ b/drivers/soc/qcom/smem.c
> @@ -364,6 +364,11 @@ static int qcom_smem_alloc_private(struct qcom_smem *smem,
>  	end = phdr_to_last_uncached_entry(phdr);
>  	cached = phdr_to_last_cached_entry(phdr);
>  
> +	if (smem->global_partition) {
> +		dev_err(smem->dev, "Already found the global partition\n");
> +		return -EINVAL;
> +	}
> +
>  	while (hdr < end) {
>  		if (hdr->canary != SMEM_PRIVATE_CANARY)
>  			goto bad_canary;
> @@ -729,11 +734,6 @@ static int qcom_smem_set_global_partition(struct qcom_smem *smem)
>  		return -EINVAL;
>  	}
>  
> -	if (smem->global_partition) {
> -		dev_err(smem->dev, "Already found the global partition\n");
> -		return -EINVAL;
> -	}
> -
>  	header = smem->regions[0].virt_base + le32_to_cpu(entry->offset);
>  	host0 = le16_to_cpu(header->host0);
>  	host1 = le16_to_cpu(header->host1);
> -- 
> 2.14.1
>