namespace: add source file location exceptions

Teach namespace checker about some special case files where the
source is in unusual location.  This fixes many of the source file
not found errors (more can be added), and also prevents false positives
for functions not being used.

Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: Michal Marek <mmarek@suse.cz>

diff --git a/scripts/namespace.pl b/scripts/namespace.pl
index a71be6b..fd2d946 100755 (executable)
--- a/scripts/namespace.pl
+++ b/scripts/namespace.pl
@@ -141,6 +141,26 @@ my %nameexception = (
     'VDSO32_sigreturn' => 1,
 );
 
+# Files with exceptions to source file location
+my %sourceloc = (
+    'net/dccp/dccp_probe.o'    => 'probe',
+    'net/dccp/dccp_ipv4.o'     => 'ipv4',
+    'net/dccp/dccp_ipv6.o'     => 'ipv6',
+    'net/dccp/dccp_diag.o'     => 'diag',
+    'drivers/char/hw_random/rng-core.o'        => 'core',
+    'fs/fat/msdos.o'           => 'namei_msdos',
+    'fs/fat/vfat.o'            => 'namei_vfat',
+    'fs/nfs_common/nfs_acl.o'  => 'nfsacl',
+    'sound/soundcore.o'                => 'sound_core',
+    'drivers/md/dm-mirror.o'   => 'dm-raid1',
+    'drivers/message/i2o/i2o_bus.o' => 'bus-osm',
+    'arch/x86/kvm/kvm-amd.o'   => 'svm',
+    'arch/x86/kvm/kvm-intel.o' => 'vmx',
+    'arch/x86/crypto/twofish-x86_64.o' => 'twofish-x86_64-asm_64',
+    'arch/x86/crypto/aes-x86_64.o' => 'aes-x86_64-asm_64',
+    'arch/x86/crypto/aesni-intel.o' => 'aesni-intel_asm',
+    'arch/x86/crypto/salsa20-x86_64.o' => 'salsa20-x86_64-asm_64',
+);
 
 &find(\&linux_objects, '.');   # find the objects and do_nm on them
 &list_multiply_defined();
@@ -228,11 +248,15 @@ sub do_nm
                return;
        }
        ($source = $basename) =~ s/\.o$//;
+
+       $source = $sourceloc{$fullname} if ($sourceloc{$fullname});
+
        if (-e "$source.c" || -e "$source.S") {
                $source = "$objtree$File::Find::dir/$source";
        } else {
                $source = "$srctree$File::Find::dir/$source";
        }
+
        if (! -e "$source.c" && ! -e "$source.S") {
                # No obvious source, exclude the object if it is conglomerate
                open(my $objdumpdata, "$objdump $basename|")