linux-kernel - [PATCH] char: add missing header dependencies

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Message-Id: <1472726461-19578-1-git-send-email-baoyou.xie@linaro.org>
Date:   Thu,  1 Sep 2016 18:41:01 +0800
From:   Baoyou Xie <baoyou.xie@...aro.org>
To:     arnd@...db.de, gregkh@...uxfoundation.org, tytso@....edu
Cc:     linux-kernel@...r.kernel.org, Baoyou Xie <baoyou.xie@...aro.org>
Subject: [PATCH] char: add missing header dependencies

We get 1 warning when building kernel with W=1:
drivers/char/random.c:2126:6: warning: no previous prototype for 'add_hwgenerator_randomness' [-Wmissing-prototypes]

In fact, this function is declared in include/linux/hw_random.h,
so this patch adds missing header dependencies.

Signed-off-by: Baoyou Xie <baoyou.xie@...aro.org>
---
 drivers/char/random.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/char/random.c b/drivers/char/random.c
index 3efb3bf..155ea8b 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -262,6 +262,7 @@
 #include <linux/syscalls.h>
 #include <linux/completion.h>
 #include <linux/uuid.h>
+#include <linux/hw_random.h>
 #include <crypto/chacha20.h>
 
 #include <asm/processor.h>
-- 
2.7.4