[PATCH] linux-headers: change the annotation of VFIO_IOMMU_SPAPR_REGISTER_MEMORY in vfio.h

JianChunfu posted 1 patch 1 month, 2 weeks ago
linux-headers/linux/vfio.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
[PATCH] linux-headers: change the annotation of VFIO_IOMMU_SPAPR_REGISTER_MEMORY in vfio.h
Posted by JianChunfu 1 month, 2 weeks ago
The ioctl(VFIO_IOMMU_MAP_DMA/VFIO_IOMMU_UNMAP_DMA) won't be called
in SPAPR machine, which is replaced by VFIO_IOMMU_SPAPR_TCE_CREATE/
VFIO_IOMMU_SPAPR_TCE_REMOVE, so change the description.

Signed-off-by: JianChunfu <chunfu.jian@shingroup.cn>
---
 linux-headers/linux/vfio.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/linux-headers/linux/vfio.h b/linux-headers/linux/vfio.h
index b4be37b22..20e8e6ae8 100644
--- a/linux-headers/linux/vfio.h
+++ b/linux-headers/linux/vfio.h
@@ -1764,7 +1764,7 @@ struct vfio_eeh_pe_op {
  *
  * Registers user space memory where DMA is allowed. It pins
  * user pages and does the locked memory accounting so
- * subsequent VFIO_IOMMU_MAP_DMA/VFIO_IOMMU_UNMAP_DMA calls
+ * subsequent VFIO_IOMMU_SPAPR_TCE_CREATE/VFIO_IOMMU_SPAPR_TCE_REMOVE calls
  * get faster.
  */
 struct vfio_iommu_spapr_register_memory {
-- 
2.27.0
Re: [PATCH] linux-headers: change the annotation of VFIO_IOMMU_SPAPR_REGISTER_MEMORY in vfio.h
Posted by Cornelia Huck 1 month, 1 week ago
On Thu, Apr 11 2024, JianChunfu <chunfu.jian@shingroup.cn> wrote:

> The ioctl(VFIO_IOMMU_MAP_DMA/VFIO_IOMMU_UNMAP_DMA) won't be called
> in SPAPR machine, which is replaced by VFIO_IOMMU_SPAPR_TCE_CREATE/
> VFIO_IOMMU_SPAPR_TCE_REMOVE, so change the description.
>
> Signed-off-by: JianChunfu <chunfu.jian@shingroup.cn>
> ---
>  linux-headers/linux/vfio.h | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Instead of editing things under linux-headers directly, the kernel
source file needs to be changed instead so that a headers sync will
update the file here. [No opinion on the actual change.]