On Thu, 2017-09-21 at 01:29 +0900, Sergey Senozhatsky wrote:
> 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'
If this series is accepted, I think this message
is unclear and would prefer something like:
---
scripts/checkpatch.pl | 11 +++++++++--
1 file changed, 9 insertions(+), 2 deletions(-)
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index dd2c262aebbf..71f3273d5913 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]/i) {
+ $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");
}
}
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