diff options
| author | Stefan Hajnoczi <stefanha@redhat.com> | 2015-03-23 15:29:31 +0000 |
|---|---|---|
| committer | Kevin Wolf <kwolf@redhat.com> | 2015-04-28 15:36:08 +0200 |
| commit | 8b6ee9aeb3f0508ed2a41381cde13bdb8707b7be (patch) | |
| tree | 345ea7082dc13865eb1341a519e23c61612b55b3 /scripts/checkpatch.pl | |
| parent | f450a85899585776ccd0913d2361dd8f82666e44 (diff) | |
checkpatch: complain about ffs(3) calls
The ffs(3) family of functions is not portable. MinGW doesn't always
provide the function.
Use ctz32() or ctz64() instead.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 1427124571-28598-10-git-send-email-stefanha@redhat.com
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Diffstat (limited to 'scripts/checkpatch.pl')
| -rwxr-xr-x | scripts/checkpatch.pl | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl index 5df61f9aa9..7f0aae977d 100755 --- a/scripts/checkpatch.pl +++ b/scripts/checkpatch.pl @@ -2911,6 +2911,17 @@ sub process { if ($rawline =~ /\b(?:Qemu|QEmu)\b/) { WARN("use QEMU instead of Qemu or QEmu\n" . $herecurr); } + +# check for non-portable ffs() calls that have portable alternatives in QEMU + if ($line =~ /\bffs\(/) { + ERROR("use ctz32() instead of ffs()\n" . $herecurr); + } + if ($line =~ /\bffsl\(/) { + ERROR("use ctz32() or ctz64() instead of ffsl()\n" . $herecurr); + } + if ($line =~ /\bffsll\(/) { + ERROR("use ctz64() instead of ffsll()\n" . $herecurr); + } } # If we have no input at all, then there is nothing to report on |