Hi Julien,
On 4/29/19 4:44 PM, Julien Grall wrote:
> A recent change split iommu_dma_map_msi_msg() in two new functions. The
> function was still implemented to avoid modifying all the callers at
> once.
>
> Now that all the callers have been reworked, iommu_dma_map_msi_msg() can
> be removed.
>
> Signed-off-by: Julien Grall <julien.grall@xxxxxxx>
Reviewed-by: Eric Auger <eric.auger@xxxxxxxxxx>
Thanks
Eric
>
> ---
> Changes in v2:
> - Rework the commit message
> ---
> drivers/iommu/dma-iommu.c | 20 --------------------
> include/linux/dma-iommu.h | 5 -----
> 2 files changed, 25 deletions(-)
>
> diff --git a/drivers/iommu/dma-iommu.c b/drivers/iommu/dma-iommu.c
> index 2309f59cefa4..12f4464828a4 100644
> --- a/drivers/iommu/dma-iommu.c
> +++ b/drivers/iommu/dma-iommu.c
> @@ -936,23 +936,3 @@ void iommu_dma_compose_msi_msg(struct msi_desc *desc,
> msg->address_lo &= cookie_msi_granule(domain->iova_cookie) - 1;
> msg->address_lo += lower_32_bits(msi_page->iova);
> }
> -
> -void iommu_dma_map_msi_msg(int irq, struct msi_msg *msg)
> -{
> - struct msi_desc *desc = irq_get_msi_desc(irq);
> - phys_addr_t msi_addr = (u64)msg->address_hi << 32 | msg->address_lo;
> -
> - if (WARN_ON(iommu_dma_prepare_msi(desc, msi_addr))) {
> - /*
> - * We're called from a void callback, so the best we can do is
> - * 'fail' by filling the message with obviously bogus values.
> - * Since we got this far due to an IOMMU being present, it's
> - * not like the existing address would have worked anyway...
> - */
> - msg->address_hi = ~0U;
> - msg->address_lo = ~0U;
> - msg->data = ~0U;
> - } else {
> - iommu_dma_compose_msi_msg(desc, msg);
> - }
> -}
> diff --git a/include/linux/dma-iommu.h b/include/linux/dma-iommu.h
> index 3fc48fbd6f63..ddd217c197df 100644
> --- a/include/linux/dma-iommu.h
> +++ b/include/linux/dma-iommu.h
> @@ -82,7 +82,6 @@ int iommu_dma_prepare_msi(struct msi_desc *desc, phys_addr_t msi_addr);
> void iommu_dma_compose_msi_msg(struct msi_desc *desc,
> struct msi_msg *msg);
>
> -void iommu_dma_map_msi_msg(int irq, struct msi_msg *msg);
> void iommu_dma_get_resv_regions(struct device *dev, struct list_head *list);
>
> #else
> @@ -122,10 +121,6 @@ static inline void iommu_dma_compose_msi_msg(struct msi_desc *desc,
> {
> }
>
> -static inline void iommu_dma_map_msi_msg(int irq, struct msi_msg *msg)
> -{
> -}
> -
> static inline void iommu_dma_get_resv_regions(struct device *dev, struct list_head *list)
> {
> }
>
