3.5.7.22 -stable review patch.  If anyone has any objections, please let me 
know.

------------------

From: Daniel Santos <[email protected]>

commit 654784284430bf2739985914b65e09c7c35a7273 upstream.

Prior to this patch the following code breaks:

/**
 * multiline_example - this breaks kernel-doc
 */
 #define multiline_example( \
myparam)

Producing this error:

Error(somefile.h:983): cannot understand prototype: 'multiline_example( \ '

This patch fixes the issue by appending all lines ending in a blackslash
(optionally followed by whitespace), removing the backslash and any
whitespace after it prior to appending (just like the C pre-processor
would).

This fixes a break in kerel-doc introduced by the additions to rbtree.h.

Signed-off-by: Daniel Santos <[email protected]>
Cc: Randy Dunlap <[email protected]>
Cc: Michal Marek <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
Signed-off-by: Luis Henriques <[email protected]>
---
 scripts/kernel-doc | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/scripts/kernel-doc b/scripts/kernel-doc
index 9b0c0b8..55ab5e4 100755
--- a/scripts/kernel-doc
+++ b/scripts/kernel-doc
@@ -2045,6 +2045,9 @@ sub process_file($) {
 
     $section_counter = 0;
     while (<IN>) {
+       while (s/\\\s*$//) {
+           $_ .= <IN>;
+       }
        if ($state == 0) {
            if (/$doc_start/o) {
                $state = 1;             # next line is always the function name
-- 
1.8.3.2

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