checkpatch: add pF/pf deprecation warning
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.
Link: http://lkml.kernel.org/r/20171109234830.5067-7-sergey.senozhatsky@gmail.com
To: Tony Luck <tony.luck@intel.com>
To: Fenghua Yu <fenghua.yu@intel.com>
To: Helge Deller <deller@gmx.de>
To: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Paul Mackerras <paulus@samba.org>
To: Michael Ellerman <mpe@ellerman.id.au>
To: James Bottomley <jejb@parisc-linux.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Jessica Yu <jeyu@kernel.org>
Cc: Petr Mladek <pmladek@suse.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: linux-ia64@vger.kernel.org
Cc: linux-parisc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-kernel@vger.kernel.org
Cc: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>
Cc: Joe Perches <joe@perches.com>
Cc: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Petr Mladek <pmladek@suse.com>
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 95cda3e..0bb68e7 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -5753,18 +5753,25 @@
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");
}
}
