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doc, tools: Remove ARRAY_SIZE check 

checkpatch.pl wants you to use ARRAY_SIZE in a kernel
header file.  We don't have access to this kernel header
file for normal compilation.  I'm just going to remove it.

Signed-off-by: Donald Sharp <sharpd@nvidia.com>
This commit is contained in:
Donald Sharp 2024-02-15 10:19:36 -05:00
parent c256a9a40a
commit 852a74807f
2 changed files with 0 additions and 22 deletions
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9
doc/developer/checkpatch.rst
View File

@ -761,15 +761,6 @@ Indentation and Line Breaks
Macros, Attributes and Symbols
------------------------------
**ARRAY_SIZE**
The ARRAY_SIZE(foo) macro should be preferred over
sizeof(foo)/sizeof(foo[0]) for finding number of elements in an
array.
The macro is defined in include/linux/kernel.h::
#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0]))
**AVOID_EXTERNS**
Function prototypes don't need to be declared extern in .h
files. It's assumed by the compiler and is unnecessary.

13
tools/checkpatch.pl
View File

@ -4656,19 +4656,6 @@ sub process {
$herecurr);
}
# check for sizeof(foo)/sizeof(foo[0]) that could be ARRAY_SIZE(foo)
if ($line =~ m@\bsizeof\s*\(\s*($Lval)\s*\)@) {
my $array = $1;
if ($line =~ m@\b(sizeof\s*\(\s*\Q$array\E\s*\)\s*/\s*sizeof\s*\(\s*\Q$array\E\s*\[\s*0\s*\]\s*\))@) {
my $array_div = $1;
if (WARN("ARRAY_SIZE",
"Prefer ARRAY_SIZE($array)\n" . $herecurr) &&
$fix) {
$fixed[$fixlinenr] =~ s/\Q$array_div\E/ARRAY_SIZE($array)/;
}
}
}
# check for function declarations without arguments like "int foo()"
if ($line =~ /(\b$Type\s*$Ident)\s*\(\s*\)/) {
if (ERROR("FUNCTION_WITHOUT_ARGS",