Author: markj
Date: Mon Jan 20 01:38:03 2020
New Revision: 356903
URL: https://svnweb.freebsd.org/changeset/base/356903

Log:
  MFC r356695, r356731:
  Optimize diff -q.
  
  PR:   242828

Modified:
  stable/12/usr.bin/diff/diffreg.c
Directory Properties:
  stable/12/   (props changed)

Modified: stable/12/usr.bin/diff/diffreg.c
==============================================================================
--- stable/12/usr.bin/diff/diffreg.c    Sun Jan 19 23:47:32 2020        
(r356902)
+++ stable/12/usr.bin/diff/diffreg.c    Mon Jan 20 01:38:03 2020        
(r356903)
@@ -349,6 +349,11 @@ diffreg(char *file1, char *file2, int flags, int capsi
                goto closem;
        }
 
+       if (diff_format == D_BRIEF && ignore_pats == NULL) {
+               rval = D_DIFFER;
+               status |= 1;
+               goto closem;
+       }
        if ((flags & D_FORCEASCII) == 0 &&
            (!asciifile(f1) || !asciifile(f2))) {
                rval = D_BINARY;
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