We deprecated '%pF/%pf' printk specifiers, since '%pS/%ps' is now smart
enough to handle function pointer dereference on platforms where such
dereference is required.
checkpatch warning example:
WARNING: Deprecated vsprintf pointer extension '%pF' - use %pS instead
Signed-off-by: Sergey Senozhatsky <sergey.senozhat...@gmail.com>
Signed-off-by: Joe Perches <j...@perches.com>
Cc: Andy Whitcroft <a...@canonical.com>
Tested-by: Helge Deller <del...@gmx.de> # parisc64
Tested-by: Santosh Sivaraj <sant...@fossix.org> # powerpc64
Acked-by: Michael Ellerman <m...@ellerman.id.au> # powerpc64
Tested-by: Tony Luck <tony.l...@intel.com> # ia64
---
scripts/checkpatch.pl | 11 +++++++++--
1 file changed, 9 insertions(+), 2 deletions(-)
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 03eb2551477d..387c453413e0 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -5762,18 +5762,25 @@ sub process {
for (my $count = $linenr; $count <= $lc; $count++) {
my $fmt = get_quoted_string($lines[$count - 1],
raw_line($count, 0));
$fmt =~ s/%%//g;
- if ($fmt =~
/(\%[\*\d\.]*p(?![\WFfSsBKRraEhMmIiUDdgVCbGNO]).)/) {
+ if ($fmt =~
/(\%[\*\d\.]*p(?![\WSsBKRraEhMmIiUDdgVCbGNO]).)/) {
$bad_extension = $1;
last;
}
}
if ($bad_extension ne "") {
my $stat_real = raw_line($linenr, 0);
+ my $ext_type = "Invalid";
+ my $use = "";
for (my $count = $linenr + 1; $count <= $lc;
$count++) {
$stat_real = $stat_real . "\n" .
raw_line($count, 0);
}
+ if ($bad_extension =~ /p[Ff]/) {
+ $ext_type = "Deprecated";
+ $use = " - use %pS instead";
+ $use =~ s/pS/ps/ if ($bad_extension =~
/pf/);
+ }
WARN("VSPRINTF_POINTER_EXTENSION",
- "Invalid vsprintf pointer extension
'$bad_extension'\n" . "$here\n$stat_real\n");
+ "$ext_type vsprintf pointer extension
'$bad_extension'$use\n" . "$here\n$stat_real\n");
}
}
--
2.14.2
