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[1/3] x86/PCI: Eliminate remove_e820_regions() common subexpressions

Message ID 20220304035110.988712-2-helgaas@kernel.org (mailing list archive)
State Handled Elsewhere, archived
Headers show
Series x86/PCI: Clip only partial E820 overlaps | expand

Commit Message

Bjorn Helgaas March 4, 2022, 3:51 a.m. UTC 
From: Bjorn Helgaas <bhelgaas@google.com>

Add local variables to reduce repetition later.  No functional change
intended.

Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
---
 arch/x86/kernel/resource.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)
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Patch

diff --git a/arch/x86/kernel/resource.c b/arch/x86/kernel/resource.c
index 9b9fb7882c20..8ffe68437744 100644
--- a/arch/x86/kernel/resource.c
+++ b/arch/x86/kernel/resource.c
@@ -27,12 +27,14 @@  static void remove_e820_regions(struct resource *avail)
 {
 	int i;
 	struct e820_entry *entry;
+	u64 e820_start, e820_end;
 
 	for (i = 0; i < e820_table->nr_entries; i++) {
 		entry = &e820_table->entries[i];
+		e820_start = entry->addr;
+		e820_end = entry->addr + entry->size - 1;
 
-		resource_clip(avail, entry->addr,
-			      entry->addr + entry->size - 1);
+		resource_clip(avail, e820_start, e820_end);
 	}
 }