[XEN PATCH 01/13] AMD/IOMMU: address violations of MISRA C:2012 Rule 7.3

Simone Ballarin posted 13 patches 2 years, 6 months ago
[XEN PATCH 01/13] AMD/IOMMU: address violations of MISRA C:2012 Rule 7.3
Posted by Simone Ballarin 2 years, 6 months ago
From: Gianluca Luparini <gianluca.luparini@bugseng.com>

The xen sources contain violations of MISRA C:2012 Rule 7.3 whose headline
states:
"The lowercase character 'l' shall not be used in a literal suffix".

Use the "L" suffix instead of the "l" suffix, to avoid potential ambiguity.
If the "u" suffix is used near "L", use the "U" suffix instead, for consistency.

The changes in this patch are mechanical.

Signed-off-by: Gianluca Luparini <gianluca.luparini@bugseng.com>
Signed-off-by: Simone Ballarin <simone.ballarin@bugseng.com>
---
 xen/drivers/passthrough/amd/iommu_guest.c   | 2 +-
 xen/drivers/passthrough/amd/iommu_map.c     | 2 +-
 xen/drivers/passthrough/amd/pci_amd_iommu.c | 2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/xen/drivers/passthrough/amd/iommu_guest.c b/xen/drivers/passthrough/amd/iommu_guest.c
index 47a912126a..80d289b8bf 100644
--- a/xen/drivers/passthrough/amd/iommu_guest.c
+++ b/xen/drivers/passthrough/amd/iommu_guest.c
@@ -87,7 +87,7 @@ static uint64_t dte_get_gcr3_table(const struct amd_iommu_dte *dte)
 static void dte_set_gcr3_table(struct amd_iommu_dte *dte, uint16_t dom_id,
                                uint64_t addr, bool gv, uint8_t glx)
 {
-#define GCR3_MASK(hi, lo) (((1ul << ((hi) + 1)) - 1) & ~((1ul << (lo)) - 1))
+#define GCR3_MASK(hi, lo) (((1UL << ((hi) + 1)) - 1) & ~((1UL << (lo)) - 1))
 
     /* I bit must be set when gcr3 is enabled */
     dte->i = true;
diff --git a/xen/drivers/passthrough/amd/iommu_map.c b/xen/drivers/passthrough/amd/iommu_map.c
index 993bac6f88..daa24a4858 100644
--- a/xen/drivers/passthrough/amd/iommu_map.c
+++ b/xen/drivers/passthrough/amd/iommu_map.c
@@ -838,7 +838,7 @@ int cf_check amd_iommu_quarantine_init(struct pci_dev *pdev, bool scratch_page)
 {
     struct domain_iommu *hd = dom_iommu(dom_io);
     unsigned long end_gfn =
-        1ul << (DEFAULT_DOMAIN_ADDRESS_WIDTH - PAGE_SHIFT);
+        1UL << (DEFAULT_DOMAIN_ADDRESS_WIDTH - PAGE_SHIFT);
     unsigned int level = amd_iommu_get_paging_mode(end_gfn);
     unsigned int req_id = get_dma_requestor_id(pdev->seg, pdev->sbdf.bdf);
     const struct ivrs_mappings *ivrs_mappings = get_ivrs_mappings(pdev->seg);
diff --git a/xen/drivers/passthrough/amd/pci_amd_iommu.c b/xen/drivers/passthrough/amd/pci_amd_iommu.c
index 94e3775506..bea70db4b7 100644
--- a/xen/drivers/passthrough/amd/pci_amd_iommu.c
+++ b/xen/drivers/passthrough/amd/pci_amd_iommu.c
@@ -368,7 +368,7 @@ static int cf_check amd_iommu_domain_init(struct domain *d)
      */
     hd->arch.amd.paging_mode = max(amd_iommu_get_paging_mode(
             is_hvm_domain(d)
-            ? 1ul << (DEFAULT_DOMAIN_ADDRESS_WIDTH - PAGE_SHIFT)
+            ? 1UL << (DEFAULT_DOMAIN_ADDRESS_WIDTH - PAGE_SHIFT)
             : get_upper_mfn_bound() + 1),
         amd_iommu_min_paging_mode);
 
-- 
2.34.1
Re: [XEN PATCH 01/13] AMD/IOMMU: address violations of MISRA C:2012 Rule 7.3
Posted by Stefano Stabellini 2 years, 6 months ago
On Thu, 3 Aug 2023, Simone Ballarin wrote:
> From: Gianluca Luparini <gianluca.luparini@bugseng.com>
> 
> The xen sources contain violations of MISRA C:2012 Rule 7.3 whose headline
> states:
> "The lowercase character 'l' shall not be used in a literal suffix".
> 
> Use the "L" suffix instead of the "l" suffix, to avoid potential ambiguity.
> If the "u" suffix is used near "L", use the "U" suffix instead, for consistency.
> 
> The changes in this patch are mechanical.
> 
> Signed-off-by: Gianluca Luparini <gianluca.luparini@bugseng.com>
> Signed-off-by: Simone Ballarin <simone.ballarin@bugseng.com>

Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>
Re: [XEN PATCH 01/13] AMD/IOMMU: address violations of MISRA C:2012 Rule 7.3
Posted by Jan Beulich 2 years, 6 months ago
On 04.08.2023 02:40, Stefano Stabellini wrote:
> On Thu, 3 Aug 2023, Simone Ballarin wrote:
>> From: Gianluca Luparini <gianluca.luparini@bugseng.com>
>>
>> The xen sources contain violations of MISRA C:2012 Rule 7.3 whose headline
>> states:
>> "The lowercase character 'l' shall not be used in a literal suffix".
>>
>> Use the "L" suffix instead of the "l" suffix, to avoid potential ambiguity.
>> If the "u" suffix is used near "L", use the "U" suffix instead, for consistency.
>>
>> The changes in this patch are mechanical.
>>
>> Signed-off-by: Gianluca Luparini <gianluca.luparini@bugseng.com>
>> Signed-off-by: Simone Ballarin <simone.ballarin@bugseng.com>
> 
> Reviewed-by: Stefano Stabellini <sstabellini@kernel.org>

Acked-by: Jan Beulich <jbeulich@suse.com>