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-rw-r--r--CODING_STYLE8
-rwxr-xr-xscripts/checkpatch.pl8
2 files changed, 13 insertions, 3 deletions
diff --git a/CODING_STYLE b/CODING_STYLE
index 3c6978f836..e7fde15003 100644
--- a/CODING_STYLE
+++ b/CODING_STYLE
@@ -31,7 +31,11 @@ Do not leave whitespace dangling off the ends of lines.
2. Line width
-Lines are 80 characters; not longer.
+Lines should be 80 characters; try not to make them longer.
+
+Sometimes it is hard to do, especially when dealing with QEMU subsystems
+that use long function or symbol names. Even in that case, do not make
+lines much longer than 80 characters.
Rationale:
- Some people like to tile their 24" screens with a 6x4 matrix of 80x24
@@ -39,6 +43,8 @@ Rationale:
let them keep doing it.
- Code and especially patches is much more readable if limited to a sane
line length. Eighty is traditional.
+ - The four-space indentation makes the most common excuse ("But look
+ at all that white space on the left!") moot.
- It is the QEMU coding style.
3. Naming
diff --git a/scripts/checkpatch.pl b/scripts/checkpatch.pl
index fea576d1b4..ba6760d4b3 100755
--- a/scripts/checkpatch.pl
+++ b/scripts/checkpatch.pl
@@ -1336,12 +1336,16 @@ sub process {
# check we are in a valid source file if not then ignore this hunk
next if ($realfile !~ /\.(h|c|cpp|s|S|pl|py|sh)$/);
-#80 column limit
+#90 column limit
if ($line =~ /^\+/ &&
!($line =~ /^\+\s*"[^"]*"\s*(?:\s*|,|\)\s*;)\s*$/) &&
$length > 80)
{
- WARN("line over 80 characters\n" . $herecurr);
+ if ($length > 90) {
+ ERROR("line over 90 characters\n" . $herecurr);
+ } else {
+ WARN("line over 80 characters\n" . $herecurr);
+ }
}
# check for spaces before a quoted newline