svn commit: r355980 - head/sys/contrib/ncsw/Peripherals/QM

[Gleb Popov]

Author: arrowd (ports committer)
Date: Sat Dec 21 11:38:48 2019
New Revision: 355980
URL: https://svnweb.freebsd.org/changeset/base/355980

Log:
  Don't shift 32-bit value by more than 32 bits.
  
  PR:		207854
  Approved by:	emaste

Modified:
  head/sys/contrib/ncsw/Peripherals/QM/qm_portal_fqr.c

Modified: head/sys/contrib/ncsw/Peripherals/QM/qm_portal_fqr.c
==============================================================================
--- head/sys/contrib/ncsw/Peripherals/QM/qm_portal_fqr.c	Sat Dec 21 07:38:14 2019	(r355979)
+++ head/sys/contrib/ncsw/Peripherals/QM/qm_portal_fqr.c	Sat Dec 21 11:38:48 2019	(r355980)
@@ -1468,7 +1468,7 @@ static t_Error CalcWredCurve(t_QmCgWredCurve *p_WredCu
     for (tmpA=(uint32_t)(64*pres) ; tmpA<128*pres; tmpA += pres )
         for (tmpN=7 ; tmpN<64; tmpN++ )
         {
-            tmp = ABS((int)(slope - tmpA/(1<<tmpN)));
+            tmp = ABS((int)(slope - tmpA/(1UL<<(tmpN%32))));
             if (tmp < gap)
             {
                sa = tmpA;