Re: i386 pgd_index() doesn't parenthesize its arg

William Lee Irwin III
2003-01-17T05:54:37Z

PAE's pte_none() and pte_pfn() evaluate their arguments twice;
analogous fixes have been made to other things; c.f. pgtable.h's long
list of one-line inlines with parentheses still around their args.

===== include/asm-i386/pgtable-3level.h 1.8 vs edited =====
--- 1.8/include/asm-i386/pgtable-3level.h Fri Jul 26 06:23:51 2002
+++ edited/include/asm-i386/pgtable-3level.h Thu Jan 16 21:59:08 2003
@@ -89,8 +89,8 @@
}

#define pte_page(x) pfn_to_page(pte_pfn(x))
-#define pte_none(x) (!(x).pte_low && !(x).pte_high)
-#define pte_pfn(x) (((x).pte_low >> PAGE_SHIFT) | ((x).pte_high << (32 - PAGE_SHIFT)))
+static inline int pte_none(pte_t pte) { return !pte.pte_low && !pte.pte_high; }
+static inline unsigned long pte_pfn(pte_t pte) { return (pte.pte_low >> PAGE_SHIFT) | (pte.pte_high << (32 - PAGE_SHIFT)); }

static inline pte_t pfn_pte(unsigned long page_nr, pgprot_t pgprot)
{