54 lines
1.4 KiB
Diff
54 lines
1.4 KiB
Diff
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From 8b24b2025fb4ae9bd6102bb054bd23987c35387e Mon Sep 17 00:00:00 2001
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From: Likhitha Korrapati <likhitha@linux.ibm.com>
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Date: Fri, 16 Jun 2023 17:25:19 +0530
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Subject: [PATCH 12/13] ppc64: Remove redundant PTE checks
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Remove redundant checks for PTE (Page Table Entry) because those
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conditions are already covered.
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if (!(pte & _PAGE_PRESENT)) {
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...
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return FALSE;
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}
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if (!pte)
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return FALSE;
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The second pte check is redundant because it holds true only when pte is
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0. If pte is 0 then (!(pte & _PAGE_PRESENT)) is true and it will return
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false. So there is no need for one more pte check.
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Signed-off-by: Likhitha Korrapati <likhitha@linux.ibm.com>
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Signed-off-by: Lianbo Jiang <lijiang@redhat.com>
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---
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ppc64.c | 6 ------
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1 file changed, 6 deletions(-)
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diff --git a/ppc64.c b/ppc64.c
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index b95a621d8fe4..fc34006f4863 100644
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--- a/ppc64.c
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+++ b/ppc64.c
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@@ -968,9 +968,6 @@ ppc64_vtop(ulong vaddr, ulong *pgd, physaddr_t *paddr, int verbose)
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return FALSE;
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}
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- if (!pte)
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- return FALSE;
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-
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*paddr = PAGEBASE(PTOB(pte >> PTE_RPN_SHIFT_DEFAULT)) + PAGEOFFSET(vaddr);
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if (verbose) {
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@@ -1077,9 +1074,6 @@ ppc64_vtop_level4(ulong vaddr, ulong *level4, physaddr_t *paddr, int verbose)
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return FALSE;
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}
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- if (!pte)
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- return FALSE;
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-
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out:
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if (hugepage_type) {
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if (hugepage_type == 2) {
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--
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2.37.1
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