linux-kernel - [PATCH v1 4/6] powerpc/vdso: Initialise vdso32

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Date:   Thu, 27 Aug 2020 15:49:27 +0000 (UTC)
From:   Christophe Leroy <christophe.leroy@...roup.eu>
To:     Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        Paul Mackerras <paulus@...ba.org>,
        Michael Ellerman <mpe@...erman.id.au>
Cc:     linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org
Subject: [PATCH v1 4/6] powerpc/vdso: Initialise vdso32_kbase at compile time

Initialise vdso32_kbase at compile time like vdso64_kbase.

Signed-off-by: Christophe Leroy <christophe.leroy@...roup.eu>
---
 arch/powerpc/kernel/vdso.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/arch/powerpc/kernel/vdso.c b/arch/powerpc/kernel/vdso.c
index c173c70ca7d2..6390a37dacea 100644
--- a/arch/powerpc/kernel/vdso.c
+++ b/arch/powerpc/kernel/vdso.c
@@ -37,13 +37,12 @@
 /* The alignment of the vDSO */
 #define VDSO_ALIGNMENT	(1 << 16)
 
+extern char vdso32_start, vdso32_end;
 static unsigned int vdso32_pages;
-static void *vdso32_kbase;
+static void *vdso32_kbase = &vdso32_start;
 unsigned long vdso32_sigtramp;
 unsigned long vdso32_rt_sigtramp;
 
-extern char vdso32_start, vdso32_end;
-
 extern char vdso64_start, vdso64_end;
 static void *vdso64_kbase = &vdso64_start;
 static unsigned int vdso64_pages;
@@ -691,8 +690,6 @@ static int __init vdso_init(void)
 	 */
 	vdso64_pages = (&vdso64_end - &vdso64_start) >> PAGE_SHIFT;
 
-	vdso32_kbase = &vdso32_start;
-
 	/*
 	 * Calculate the size of the 32 bits vDSO
 	 */
-- 
2.25.0