checkpatch: add check for bzero

Tested-By: Peter Xu <peterx@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index afa7f79..b7cb4ab 100755 (executable)
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -2544,7 +2544,7 @@ sub process {
                }
        }
 
-# check for non-portable ffs() calls that have portable alternatives in QEMU
+# check for non-portable libc calls that have portable alternatives in QEMU
                if ($line =~ /\bffs\(/) {
                        ERROR("use ctz32() instead of ffs()\n" . $herecurr);
                }
@@ -2554,6 +2554,9 @@ sub process {
                if ($line =~ /\bffsll\(/) {
                        ERROR("use ctz64() instead of ffsll()\n" . $herecurr);
                }
+               if ($line =~ /\bbzero\(/) {
+                       ERROR("use memset() instead of bzero()\n" . $herecurr);
+               }
        }
 
        # If we have no input at all, then there is nothing to report on