checkpatch: fix $Float creation of match variables

Commit 74349bccedb3 ("checkpatch: add support for floating point
constants") added an unnecessary match variable that caused tests that
used a $Constant or $LvalOrFunc to have one too many matches.

This causes problems with usleep_range, min/max and other extended
tests.

Avoid using match variables in $Float.
Avoid using match variables in $Assignment too.

Signed-off-by: Joe Perches <joe@perches.com>
Cc: Andy Whitcroft <apw@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index 4d2c7dfdaabd44abd21e53072eee8f8f884890e8..2bb08a962ce3168a7fe1c01d3f397349e0143bc5 100755 (executable)
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -230,12 +230,12 @@ our $Inline       = qr{inline|__always_inline|noinline};
 our $Member    = qr{->$Ident|\.$Ident|\[[^]]*\]};
 our $Lval      = qr{$Ident(?:$Member)*};
 
-our $Float_hex = qr{(?i:0x[0-9a-f]+p-?[0-9]+[fl]?)};
-our $Float_dec = qr{(?i:((?:[0-9]+\.[0-9]*|[0-9]*\.[0-9]+)(?:e-?[0-9]+)?[fl]?))};
-our $Float_int = qr{(?i:[0-9]+e-?[0-9]+[fl]?)};
+our $Float_hex = qr{(?i)0x[0-9a-f]+p-?[0-9]+[fl]?};
+our $Float_dec = qr{(?i)(?:[0-9]+\.[0-9]*|[0-9]*\.[0-9]+)(?:e-?[0-9]+)?[fl]?};
+our $Float_int = qr{(?i)[0-9]+e-?[0-9]+[fl]?};
 our $Float     = qr{$Float_hex|$Float_dec|$Float_int};
-our $Constant  = qr{(?:$Float|(?i:(?:0x[0-9a-f]+|[0-9]+)[ul]*))};
-our $Assignment        = qr{(?:\*\=|/=|%=|\+=|-=|<<=|>>=|&=|\^=|\|=|=)};
+our $Constant  = qr{$Float|(?i)(?:0x[0-9a-f]+|[0-9]+)[ul]*};
+our $Assignment        = qr{\*\=|/=|%=|\+=|-=|<<=|>>=|&=|\^=|\|=|=};
 our $Compare    = qr{<=|>=|==|!=|<|>};
 our $Operators = qr{
                        <=|>=|==|!=|