Subject: + checkpatch-warn-on-uses-of-__constant_foo-functions.patch added to -mm tree
To: joe@xxxxxxxxxxx,apw@xxxxxxxxxxxxx,sw@xxxxxxxxxxxxxxxxxx
From: akpm@xxxxxxxxxxxxxxxxxxxx
Date: Wed, 12 Feb 2014 13:53:17 -0800
The patch titled
Subject: checkpatch: warn on uses of __constant_<foo> functions
has been added to the -mm tree. Its filename is
checkpatch-warn-on-uses-of-__constant_foo-functions.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/checkpatch-warn-on-uses-of-__constant_foo-functions.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/checkpatch-warn-on-uses-of-__constant_foo-functions.patch
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*** Remember to use Documentation/SubmitChecklist when testing your code ***
The -mm tree is included into linux-next and is updated
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------------------------------------------------------
From: Joe Perches <joe@xxxxxxxxxxx>
Subject: checkpatch: warn on uses of __constant_<foo> functions
Emit a warning when using any of these __constant_<foo> forms:
__constant_cpu_to_be[x]
__constant_cpu_to_le[x]
__constant_be[x]_to_cpu
__constant_le[x]_to_cpu
__constant_htons
__constant_ntohs
Using any of these outside of include/uapi/ isn't preferred as using the
function without __constant_ is identical when the argument is a constant.
Signed-off-by: Joe Perches <joe@xxxxxxxxxxx>
Cc: Andy Whitcroft <apw@xxxxxxxxxxxxx>
Cc: Simon Wunderlich <sw@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
scripts/checkpatch.pl | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff -puN scripts/checkpatch.pl~checkpatch-warn-on-uses-of-__constant_foo-functions scripts/checkpatch.pl
--- a/scripts/checkpatch.pl~checkpatch-warn-on-uses-of-__constant_foo-functions
+++ a/scripts/checkpatch.pl
@@ -3931,6 +3931,19 @@ sub process {
}
}
+# don't use __constant_<foo> functions outside of include/uapi/
+ if ($realfile !~ m@^include/uapi/@ &&
+ $line =~ /(__constant_(?:htons|ntohs|[bl]e(?:16|32|64)_to_cpu|cpu_to_[bl]e(?:16|32|64)))\s*\(/) {
+ my $constant_func = $1;
+ my $func = $constant_func;
+ $func =~ s/^__constant_//;
+ if (WARN("CONSTANT_CONVERSION",
+ "$constant_func should be $func\n" . $herecurr) &&
+ $fix) {
+ $fixed[$linenr - 1] =~ s/\b$constant_func\b/$func/g;
+ }
+ }
+
# prefer usleep_range over udelay
if ($line =~ /\budelay\s*\(\s*(\d+)\s*\)/) {
my $delay = $1;
_
Patches currently in -mm which might be from joe@xxxxxxxxxxx are
origin.patch
drivers-iommu-omap-iommu-debugc-fix-decimal-permissions.patch
drivers-fmc-fmc-write-eepromc-fix-decimal-permissions.patch
mm-utilc-add-kstrimdup.patch
checkpatch-add-test-for-long-udelay.patch
checkpatch-dont-warn-on-some-function-pointer-return-styles.patch
checkpatch-add-checks-for-constant-non-octal-permissions.patch
checkpatch-warn-on-uses-of-__constant_foo-functions.patch
ncpfs-add-pr_fmt-and-convert-printks-to-pr_level.patch
ncpfs-convert-dprintk-ddprintk-to-ncp_dbg.patch
ncpfs-convert-dprintk-ddprintk-to-ncp_dbg-fix.patch
ncpfs-convert-dprintk-ddprintk-to-ncp_dbg-fix-fix.patch
ncpfs-convert-pprintk-to-ncp_vdbg.patch
ncpfs-remove-now-unused-printk-macro.patch
ncpfs-inode-fix-mismatch-printk-formats-and-arguments.patch
linux-next.patch
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