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From: Alan Cox <alc@FreeBSD.org>
Date: Mon, 7 Oct 2019 03:37:28 +0000 (UTC)
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Subject: svn commit: r353162 - head/sys/arm64/arm64
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Author: alc
Date: Mon Oct  7 03:37:28 2019
New Revision: 353162
URL: https://svnweb.freebsd.org/changeset/base/353162

Log:
  Eliminate a redundant bzero().  The l0 page table page was already zeroed
  by efi_1t1_page().
  
  MFC after:	1 week

Modified:
  head/sys/arm64/arm64/efirt_machdep.c

Modified: head/sys/arm64/arm64/efirt_machdep.c
==============================================================================
--- head/sys/arm64/arm64/efirt_machdep.c	Mon Oct  7 03:28:11 2019	(r353161)
+++ head/sys/arm64/arm64/efirt_machdep.c	Mon Oct  7 03:37:28 2019	(r353162)
@@ -176,7 +176,6 @@ efi_create_1t1_map(struct efi_md *map, int ndesc, int 
 	efi_l0_page = efi_1t1_page();
 	VM_OBJECT_WUNLOCK(obj_1t1_pt);
 	efi_l0 = (pd_entry_t *)PHYS_TO_DMAP(VM_PAGE_TO_PHYS(efi_l0_page));
-	bzero(efi_l0, L0_ENTRIES * sizeof(*efi_l0));
 
 	for (i = 0, p = map; i < ndesc; i++, p = efi_next_descriptor(p,
 	    descsz)) {