From: Clément Mathieu--Drif <clement.mathieu--drif@eviden.com>

The 'level' field in vtd_iotlb_key is an unsigned integer.
We don't need to store level as an int in vtd_lookup_iotlb.

This is not an issue by itself, but using unsigned here seems cleaner.

Signed-off-by: Clément Mathieu--Drif <clement.mathieu--drif@eviden.com>
---
 hw/i386/intel_iommu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c
index 37c21a0aec..be0cb39b5c 100644
--- a/hw/i386/intel_iommu.c
+++ b/hw/i386/intel_iommu.c
@@ -358,7 +358,7 @@ static VTDIOTLBEntry *vtd_lookup_iotlb(IntelIOMMUState *s, uint16_t source_id,
 {
     struct vtd_iotlb_key key;
     VTDIOTLBEntry *entry;
-    int level;
+    unsigned level;
 
     for (level = VTD_SL_PT_LEVEL; level < VTD_SL_PML4_LEVEL; level++) {
         key.gfn = vtd_get_iotlb_gfn(addr, level);
-- 
2.45.2

On 2024/7/8 19:39, CLEMENT MATHIEU--DRIF wrote:
> From: Clément Mathieu--Drif <clement.mathieu--drif@eviden.com>
> 
> The 'level' field in vtd_iotlb_key is an unsigned integer.
> We don't need to store level as an int in vtd_lookup_iotlb.
> 
> This is not an issue by itself, but using unsigned here seems cleaner.
> 
> Signed-off-by: Clément Mathieu--Drif <clement.mathieu--drif@eviden.com>
> ---
>   hw/i386/intel_iommu.c | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/hw/i386/intel_iommu.c b/hw/i386/intel_iommu.c
> index 37c21a0aec..be0cb39b5c 100644
> --- a/hw/i386/intel_iommu.c
> +++ b/hw/i386/intel_iommu.c
> @@ -358,7 +358,7 @@ static VTDIOTLBEntry *vtd_lookup_iotlb(IntelIOMMUState *s, uint16_t source_id,
>   {
>       struct vtd_iotlb_key key;
>       VTDIOTLBEntry *entry;
> -    int level;
> +    unsigned level;
>   
>       for (level = VTD_SL_PT_LEVEL; level < VTD_SL_PML4_LEVEL; level++) {
>           key.gfn = vtd_get_iotlb_gfn(addr, level);

Reviewed-by: Yi Liu <yi.l.liu@intel.com>

-- 
Regards,
Yi Liu