PKGBUILDs/core/linux-kirkwood/0001-block-bfq-use-the-uninitialized_var-macro-when-neede.patch
2013-05-09 00:41:48 -06:00

55 lines
1.9 KiB
Diff
Executable file

From cb439ee574d4496ca0d14566e7c4bbf4fe20cbf4 Mon Sep 17 00:00:00 2001
From: Arianna Avanzini <avanzini.arianna@gmail.com>
Date: Fri, 3 May 2013 20:45:49 +0200
Subject: [PATCH] block, bfq: use the uninitialized_var() macro when needed
It may happen that a variable is initialized in a function that is
called by the function that defined it. Use the uninitialized_var()
macro in these cases.
---
block/bfq-iosched.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/block/bfq-iosched.c b/block/bfq-iosched.c
index c9d57b0..b94aa24 100644
--- a/block/bfq-iosched.c
+++ b/block/bfq-iosched.c
@@ -3023,7 +3023,7 @@ static ssize_t \
__FUNC(struct elevator_queue *e, const char *page, size_t count) \
{ \
struct bfq_data *bfqd = e->elevator_data; \
- unsigned long __data; \
+ unsigned long uninitialized_var(__data); \
int ret = bfq_var_store(&__data, (page), count); \
if (__data < (MIN)) \
__data = (MIN); \
@@ -3083,7 +3083,7 @@ static ssize_t bfq_max_budget_store(struct elevator_queue *e,
const char *page, size_t count)
{
struct bfq_data *bfqd = e->elevator_data;
- unsigned long __data;
+ unsigned long uninitialized_var(__data);
int ret = bfq_var_store(&__data, (page), count);
if (__data == 0)
@@ -3103,7 +3103,7 @@ static ssize_t bfq_timeout_sync_store(struct elevator_queue *e,
const char *page, size_t count)
{
struct bfq_data *bfqd = e->elevator_data;
- unsigned long __data;
+ unsigned long uninitialized_var(__data);
int ret = bfq_var_store(&__data, (page), count);
if (__data < 1)
@@ -3122,7 +3122,7 @@ static ssize_t bfq_low_latency_store(struct elevator_queue *e,
const char *page, size_t count)
{
struct bfq_data *bfqd = e->elevator_data;
- unsigned long __data;
+ unsigned long uninitialized_var(__data);
int ret = bfq_var_store(&__data, (page), count);
if (__data > 1)
--
1.8.1.4