Re: [PATCH 1/2] iommu/hyper-v: Constify hyperv_ir_domain_ops

From: Wei Liu
Date: Tue May 26 2020 - 05:09:08 EST


On Mon, May 25, 2020 at 11:49:57PM +0200, Rikard Falkeborn wrote:
> The struct hyperv_ir_domain_ops is not modified and can be made const to
> allow the compiler to put it in read-only memory.
>
> Before:
> text data bss dec hex filename
> 2916 1180 1120 5216 1460 drivers/iommu/hyperv-iommu.o
>
> After:
> text data bss dec hex filename
> 3044 1052 1120 5216 1460 drivers/iommu/hyperv-iommu.o
>
> Signed-off-by: Rikard Falkeborn <rikard.falkeborn@xxxxxxxxx>

Acked-by: Wei Liu <wei.liu@xxxxxxxxxx>

> ---
> drivers/iommu/hyperv-iommu.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/iommu/hyperv-iommu.c b/drivers/iommu/hyperv-iommu.c
> index a386b83e0e34..3c0c67a99c7b 100644
> --- a/drivers/iommu/hyperv-iommu.c
> +++ b/drivers/iommu/hyperv-iommu.c
> @@ -131,7 +131,7 @@ static int hyperv_irq_remapping_activate(struct irq_domain *domain,
> return 0;
> }
>
> -static struct irq_domain_ops hyperv_ir_domain_ops = {
> +static const struct irq_domain_ops hyperv_ir_domain_ops = {
> .alloc = hyperv_irq_remapping_alloc,
> .free = hyperv_irq_remapping_free,
> .activate = hyperv_irq_remapping_activate,
> --
> 2.26.2
>