[xen master] xen/mm: address violations of MISRA C:2012 Rules 8.2 and 8.3

[patchbot@xxxxxxx]

commit 46f2e2c3bcd5b17dae0fd1e45ed8619d6c047b55
Author:     Federico Serafini <federico.serafini@xxxxxxxxxxx>
AuthorDate: Mon Nov 27 15:15:09 2023 +0100
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Mon Nov 27 15:15:09 2023 +0100

    xen/mm: address violations of MISRA C:2012 Rules 8.2 and 8.3
    
    Add missing parameter names and uniform the interfaces of
    modify_xen_mappings() and modify_xen_mappings_lite().
    
    No functional change.
    
    Signed-off-by: Federico Serafini <federico.serafini@xxxxxxxxxxx>
    Reviewed-by: Stefano Stabellini <sstabellini@xxxxxxxxxx>
    Acked-by: Jan Beulich <jbeulich@xxxxxxxx>
---
 xen/arch/arm/mmu/pt.c   |  4 ++--
 xen/arch/ppc/mm-radix.c |  2 +-
 xen/arch/x86/mm.c       |  4 ++--
 xen/include/xen/mm.h    | 16 +++++++++-------
 4 files changed, 14 insertions(+), 12 deletions(-)

diff --git a/xen/arch/arm/mmu/pt.c b/xen/arch/arm/mmu/pt.c
index e6fc5ed45a..a7755728ae 100644
--- a/xen/arch/arm/mmu/pt.c
+++ b/xen/arch/arm/mmu/pt.c
@@ -718,12 +718,12 @@ int destroy_xen_mappings(unsigned long s, unsigned long e)
     return xen_pt_update(s, INVALID_MFN, (e - s) >> PAGE_SHIFT, 0);
 }
 
-int modify_xen_mappings(unsigned long s, unsigned long e, unsigned int flags)
+int modify_xen_mappings(unsigned long s, unsigned long e, unsigned int nf)
 {
     ASSERT(IS_ALIGNED(s, PAGE_SIZE));
     ASSERT(IS_ALIGNED(e, PAGE_SIZE));
     ASSERT(s <= e);
-    return xen_pt_update(s, INVALID_MFN, (e - s) >> PAGE_SHIFT, flags);
+    return xen_pt_update(s, INVALID_MFN, (e - s) >> PAGE_SHIFT, nf);
 }
 
 /*
diff --git a/xen/arch/ppc/mm-radix.c b/xen/arch/ppc/mm-radix.c
index 11d0f27b60..daa411a6fa 100644
--- a/xen/arch/ppc/mm-radix.c
+++ b/xen/arch/ppc/mm-radix.c
@@ -271,7 +271,7 @@ void __init setup_initial_pagetables(void)
  */
 unsigned long __read_mostly frametable_base_pdx;
 
-void put_page(struct page_info *p)
+void put_page(struct page_info *page)
 {
     BUG_ON("unimplemented");
 }
diff --git a/xen/arch/x86/mm.c b/xen/arch/x86/mm.c
index 42c957c40e..0a66db10b9 100644
--- a/xen/arch/x86/mm.c
+++ b/xen/arch/x86/mm.c
@@ -5901,14 +5901,14 @@ int destroy_xen_mappings(unsigned long s, unsigned long 
e)
  * a problem.
  */
 void init_or_livepatch modify_xen_mappings_lite(
-    unsigned long s, unsigned long e, unsigned int _nf)
+    unsigned long s, unsigned long e, unsigned int nf)
 {
     unsigned long v = s, fm, flags;
 
     /* Set of valid PTE bits which may be altered. */
 #define FLAGS_MASK (_PAGE_NX|_PAGE_DIRTY|_PAGE_ACCESSED|_PAGE_RW|_PAGE_PRESENT)
     fm = put_pte_flags(FLAGS_MASK);
-    flags = put_pte_flags(_nf & FLAGS_MASK);
+    flags = put_pte_flags(nf & FLAGS_MASK);
 #undef FLAGS_MASK
 
     ASSERT(flags & _PAGE_PRESENT);
diff --git a/xen/include/xen/mm.h b/xen/include/xen/mm.h
index 595629cf3f..3d9b2d05a5 100644
--- a/xen/include/xen/mm.h
+++ b/xen/include/xen/mm.h
@@ -71,9 +71,10 @@
 
 struct page_info;
 
-void put_page(struct page_info *);
-bool __must_check get_page(struct page_info *, const struct domain *);
-struct domain *__must_check page_get_owner_and_reference(struct page_info *);
+void put_page(struct page_info *page);
+bool __must_check get_page(struct page_info *page,
+                           const struct domain *domain);
+struct domain *__must_check page_get_owner_and_reference(struct page_info 
*page);
 
 /* Boot-time allocator. Turns into generic allocator after bootstrap. */
 void init_boot_pages(paddr_t ps, paddr_t pe);
@@ -110,8 +111,9 @@ int map_pages_to_xen(
     unsigned long nr_mfns,
     unsigned int flags);
 /* Alter the permissions of a range of Xen virtual address space. */
-int modify_xen_mappings(unsigned long s, unsigned long e, unsigned int flags);
-void modify_xen_mappings_lite(unsigned long s, unsigned long e, unsigned int 
flags);
+int modify_xen_mappings(unsigned long s, unsigned long e, unsigned int nf);
+void modify_xen_mappings_lite(unsigned long s, unsigned long e,
+                              unsigned int nf);
 int destroy_xen_mappings(unsigned long s, unsigned long e);
 /* Retrieve the MFN mapped by VA in Xen virtual address space. */
 mfn_t xen_map_to_mfn(unsigned long va);
@@ -135,7 +137,7 @@ void free_domheap_pages(struct page_info *pg, unsigned int 
order);
 unsigned long avail_domheap_pages_region(
     unsigned int node, unsigned int min_width, unsigned int max_width);
 unsigned long avail_domheap_pages(void);
-unsigned long avail_node_heap_pages(unsigned int);
+unsigned long avail_node_heap_pages(unsigned int nodeid);
 #define alloc_domheap_page(d,f) (alloc_domheap_pages(d,0,f))
 #define free_domheap_page(p)  (free_domheap_pages(p,0))
 unsigned int online_page(mfn_t mfn, uint32_t *status);
@@ -528,7 +530,7 @@ static inline unsigned int get_order_from_pages(unsigned 
long nr_pages)
     return order;
 }
 
-void scrub_one_page(struct page_info *);
+void scrub_one_page(struct page_info *pg);
 
 #ifndef arch_free_heap_page
 #define arch_free_heap_page(d, pg) \
--
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