[Qemu-trivial] [PATCH 1/2] CODING_STYLE: specify the indent rule for multiline code

[Wei Yang <richardw.yang@linux.intel.com>]

We didn't specify the indent rule for multiline code here, which may
misleading users. And in current code, the code use different rules.

Add this rule in CODING_STYLE to make sure this is clear to every one.

Signed-off-by: Wei Yang <richardw.yang@linux.intel.com>
Suggested-by: Igor Mammedov <imammedo@redhat.com>
---
 CODING_STYLE | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/CODING_STYLE b/CODING_STYLE
index ec075dedc4..73f66ca185 100644
--- a/CODING_STYLE
+++ b/CODING_STYLE
@@ -29,6 +29,32 @@ Spaces of course are superior to tabs because:
 
 Do not leave whitespace dangling off the ends of lines.
 
+1.1 Multiline Indent
+
+There are several places where indent is necessary:
+
+ - struct definition
+ - if/else
+ - while/for
+ - function definition & call
+
+All the above cases apply the same rule: indent with four spaces.
+
+While the last three case may face another situation: code should spread into
+several lines. In this case the rule is align the new line with first
+parentheses.
+
+For example:
+
+    if (a == 1 &&
+        b == 2)
+
+    while (a == 1 &&
+           b == 2)
+
+    do_something(arg1, arg2
+                 arg3)
+
 2. Line width
 
 Lines should be 80 characters; try not to make them longer.
-- 
2.19.1