svn commit: r295141 - head/sys/arm/arm

[Svatopluk Kraus]

Author: skra
Date: Tue Feb  2 10:17:51 2016
New Revision: 295141
URL: https://svnweb.freebsd.org/changeset/base/295141

Log:
  Fix setting of protection bits for page table entries in pmap_map(). This
  function is only called from vm_page_startup() and vm_reserv_startup().
  I.e. during vm subsystem initialization. As VM_PROT_WRITE is always
  used in these calls, the typo did not have any effect. Likely, it's
  the reason why it wasn't discovered so long.

Modified:
  head/sys/arm/arm/pmap-v6.c

Modified: head/sys/arm/arm/pmap-v6.c
==============================================================================
--- head/sys/arm/arm/pmap-v6.c	Tue Feb  2 10:11:56 2016	(r295140)
+++ head/sys/arm/arm/pmap-v6.c	Tue Feb  2 10:17:51 2016	(r295141)
@@ -1325,7 +1325,7 @@ pmap_map(vm_offset_t *virt, vm_paddr_t s
 	PDEBUG(1, printf("%s: virt = %#x, start = %#x, end = %#x (size = %#x),"
 	    " prot = %d\n", __func__, *virt, start, end, end - start,  prot));
 
-	l2prot = (prot & VM_PROT_WRITE) ? PTE2_AP_KRW : PTE1_AP_KR;
+	l2prot = (prot & VM_PROT_WRITE) ? PTE2_AP_KRW : PTE2_AP_KR;
 	l2prot |= (prot & VM_PROT_EXECUTE) ? PTE2_X : PTE2_NX;
 	l1prot = ATTR_TO_L1(l2prot);