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checkpatch: remove GCC_BINARY_CONSTANT warning

This warning was there to avoid the use of 0bxxx values as they are not
supported by gcc prior to v4.3

Since cafa0010cd ("Raise the minimum required gcc version to 4.6"),
it's not an issue anymore and using such values can increase readability
of code.

Joe said:

: Seems sensible as the other compilers also support binary literals from
: relatively old versions.
: http://www.open-std.org/jtc1/sc22/wg21/docs/papers/2012/n3472.pdf
: https://software.intel.com/en-us/articles/c14-features-supported-by-intel-c-compiler

Link: http://lkml.kernel.org/r/392eeae782302ee8812a3c932a602035deed1609.1535351453.git.christophe.leroy@c-s.fr
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Christophe Leroy 2018-10-30 15:05:53 -07:00 committed by Linus Torvalds
parent 8997600553
commit 22ebb72b32

View File

@ -4934,17 +4934,6 @@ sub process {
while ($line =~ m{($Constant|$Lval)}g) {
my $var = $1;
#gcc binary extension
if ($var =~ /^$Binary$/) {
if (WARN("GCC_BINARY_CONSTANT",
"Avoid gcc v4.3+ binary constant extension: <$var>\n" . $herecurr) &&
$fix) {
my $hexval = sprintf("0x%x", oct($var));
$fixed[$fixlinenr] =~
s/\b$var\b/$hexval/;
}
}
#CamelCase
if ($var !~ /^$Constant$/ &&
$var =~ /[A-Z][a-z]|[a-z][A-Z]/ &&