linux-kernel - [POC][PATCH 43/83] arm64 vdso: get rid of pointless casts

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Date:	Mon, 21 Dec 2015 23:47:16 +0000
From:	Al Viro <viro@...IV.linux.org.uk>
To:	linux-kernel@...r.kernel.org
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: [POC][PATCH 43/83] arm64 vdso: get rid of pointless casts

From: Al Viro <viro@...iv.linux.org.uk>

... with two added to cope with flush_icache_range() calling
conventions

Signed-off-by: Al Viro <viro@...iv.linux.org.uk>
---
 arch/arm64/kernel/vdso.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/arch/arm64/kernel/vdso.c b/arch/arm64/kernel/vdso.c
index 07e4d14..f49e158 100644
--- a/arch/arm64/kernel/vdso.c
+++ b/arch/arm64/kernel/vdso.c
@@ -62,22 +62,21 @@ static int alloc_vectors_page(void)
 
 	int kuser_sz = __kuser_helper_end - __kuser_helper_start;
 	int sigret_sz = __aarch32_sigret_code_end - __aarch32_sigret_code_start;
-	unsigned long vpage;
-
-	vpage = (unsigned long)get_zeroed_page(GFP_ATOMIC);
+	void *vpage = get_zeroed_page(GFP_ATOMIC);
 
 	if (!vpage)
 		return -ENOMEM;
 
 	/* kuser helpers */
-	memcpy((void *)vpage + 0x1000 - kuser_sz, __kuser_helper_start,
+	memcpy(vpage + 0x1000 - kuser_sz, __kuser_helper_start,
 		kuser_sz);
 
 	/* sigreturn code */
-	memcpy((void *)vpage + AARCH32_KERN_SIGRET_CODE_OFFSET,
+	memcpy(vpage + AARCH32_KERN_SIGRET_CODE_OFFSET,
                __aarch32_sigret_code_start, sigret_sz);
 
-	flush_icache_range(vpage, vpage + PAGE_SIZE);
+	flush_icache_range((unsigned long)vpage,
+			   (unsigned long)vpage + PAGE_SIZE);
 	vectors_page[0] = virt_to_page(vpage);
 
 	return 0;
-- 
2.1.4

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