The following commit has been merged into the x86/mm branch of tip:
Commit-ID: d4245fd4a62931aebd1c5e6b7b6f51b6ef7ad087
Gitweb: https://git.kernel.org/tip/d4245fd4a62931aebd1c5e6b7b6f51b6ef7ad087
Author: Yuntao Wang <yuntao.wang@xxxxxxxxx>
AuthorDate: Wed, 14 Aug 2024 20:46:45 +08:00
Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitterDate: Wed, 14 Aug 2024 19:41:40 +02:00
x86/mm: Remove duplicate check from build_cr3()
There is already a check for 'asid > MAX_ASID_AVAILABLE' in kern_pcid(), so
it is unnecessary to perform this check in build_cr3() right before calling
kern_pcid().
Remove it.
Signed-off-by: Yuntao Wang <yuntao.wang@xxxxxxxxx>
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Link: https://lore.kernel.org/all/20240814124645.51019-1-yuntao.wang@xxxxxxxxx
---
arch/x86/mm/tlb.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/arch/x86/mm/tlb.c b/arch/x86/mm/tlb.c
index 09950fe..86593d1 100644
--- a/arch/x86/mm/tlb.c
+++ b/arch/x86/mm/tlb.c
@@ -158,7 +158,6 @@ static inline unsigned long build_cr3(pgd_t *pgd, u16 asid, unsigned long lam)
unsigned long cr3 = __sme_pa(pgd) | lam;
if (static_cpu_has(X86_FEATURE_PCID)) {
- VM_WARN_ON_ONCE(asid > MAX_ASID_AVAILABLE);
cr3 |= kern_pcid(asid);
} else {
VM_WARN_ON_ONCE(asid != 0);
|