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Subject[RFC][PATCH v2 7/7] checkpatch: add pF/pf deprecation warning
Date
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: Use '%pS/%ps' instead. This pointer extension was deprecated: '%pF'

Signed-off-by: Sergey Senozhatsky <sergey.senozhatsky@gmail.com>
Cc: Andy Whitcroft <apw@canonical.com>
Cc: Joe Perches <joe@perches.com>
---
scripts/checkpatch.pl | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index dd2c262aebbf..5945e4843466 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -5762,18 +5762,20 @@ 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 $error_msg = "Invalid vsprintf pointer extension ";
for (my $count = $linenr + 1; $count <= $lc; $count++) {
$stat_real = $stat_real . "\n" . raw_line($count, 0);
}
+ $error_msg = "Use '%pS/%ps' instead. This pointer extension was deprecated:" if ($bad_extension =~ /pF|pf/);
WARN("VSPRINTF_POINTER_EXTENSION",
- "Invalid vsprintf pointer extension '$bad_extension'\n" . "$here\n$stat_real\n");
+ "$error_msg '$bad_extension'\n" . "$here\n$stat_real\n");
}
}

--
2.14.1
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