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checkpatch: forbid filesystem accesses from within the kernel.

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Use of the sys_open/close/read/write system calls from within
kernel code is inappropriate, and now triggers errors.

Change-Id: I98e20513c257d0664684b7144585853f617d771a
Signed-off-by: Gregory Bean <gbean@codeaurora.org>
(cherry picked from commit ee62f2afcac1bcb180b2f0dddf2c8f5cda54bc5b)
This commit is contained in:
Gregory Bean 2011-03-17 14:18:20 -07:00 committed by Stephen Boyd
parent d0d4b63246
commit 5bc97df95b
1 changed files with 6 additions and 0 deletions
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6
scripts/checkpatch.pl
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@ -3219,6 +3219,12 @@ sub process {
"Use of volatile is usually wrong: see Documentation/volatile-considered-harmful.txt\n" . $herecurr);
}
# sys_open/read/write/close are not allowed in the kernel
if ($line =~ /\b(sys_(?:open|read|write|close))\b/) {
ERROR("$1 is inappropriate in kernel code.\n" .
$herecurr);
}
# warn about #if 0
if ($line =~ /^.\s*\#\s*if\s+0\b/) {
WARN("if this code is redundant consider removing it\n"