x86/mm: Remove unused CR3_HW_ASID_BITS

yosrym93 · KAGA-KOKO · commit 4276a0bb6259 · 2024-08-10T10:47:19.000+02:00
Commit 6fd166a ("x86/mm: Use/Fix PCID to optimize user/kernel switches") removed the last usage of CR3_HW_ASID_BITS and opted to use X86_CR3_PCID_BITS instead. Remove CR3_HW_ASID_BITS. Signed-off-by: Yosry Ahmed <yosryahmed@google.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Link: https://lore.kernel.org/all/20240425215951.2310105-1-yosryahmed@google.com
diff --git a/arch/x86/mm/tlb.c b/arch/x86/mm/tlb.c
@@ -86,9 +86,6 @@
  *
  */
 
-/* There are 12 bits of space for ASIDS in CR3 */
-#define CR3_HW_ASID_BITS		12
-
 /*
  * When enabled, MITIGATION_PAGE_TABLE_ISOLATION consumes a single bit for
  * user/kernel switches

Original file line number	Diff line number	Diff line change
`@@ -86,9 +86,6 @@`
`86`	`86`	`*`
`87`	`87`	`*/`
`88`	`88`
`89`		`-/* There are 12 bits of space for ASIDS in CR3 */`
`90`		`-#define CR3_HW_ASID_BITS 12`
`91`		`-`
`92`	`89`	`/*`
`93`	`90`	`* When enabled, MITIGATION_PAGE_TABLE_ISOLATION consumes a single bit for`
`94`	`91`	`* user/kernel switches`