diff mbox series

arm64: Fix CONFIG_ARCH_RANDOM=n build

Message ID 245aede65d9834101efc9e470f50633b7052e1a8.1581362270.git.robin.murphy@arm.com (mailing list archive)
State Mainlined
Commit 74a44bed8d93782affb707a33469bda7052b4207
Headers show
Series arm64: Fix CONFIG_ARCH_RANDOM=n build | expand

Commit Message

Robin Murphy Feb. 10, 2020, 7:21 p.m. UTC
The entire asm/archrandom.h header is generically included via
linux/archrandom.h only when CONFIG_ARCH_RANDOM is already set, so the
stub definitions of __arm64_rndr() and __early_cpu_has_rndr() are only
visible to KASLR if it explicitly includes the arch-internal header.

Signed-off-by: Robin Murphy <robin.murphy@arm.com>
---
 arch/arm64/kernel/kaslr.c | 1 +
 1 file changed, 1 insertion(+)

Comments

Mark Brown Feb. 10, 2020, 7:23 p.m. UTC | #1
On Mon, Feb 10, 2020 at 07:21:01PM +0000, Robin Murphy wrote:
> The entire asm/archrandom.h header is generically included via
> linux/archrandom.h only when CONFIG_ARCH_RANDOM is already set, so the
> stub definitions of __arm64_rndr() and __early_cpu_has_rndr() are only
> visible to KASLR if it explicitly includes the arch-internal header.

Acked-by: Mark Brown <broonie@kernel.org>
diff mbox series

Patch

diff --git a/arch/arm64/kernel/kaslr.c b/arch/arm64/kernel/kaslr.c
index 53b8a4ee64ff..91a83104c6e8 100644
--- a/arch/arm64/kernel/kaslr.c
+++ b/arch/arm64/kernel/kaslr.c
@@ -11,6 +11,7 @@ 
 #include <linux/sched.h>
 #include <linux/types.h>
 
+#include <asm/archrandom.h>
 #include <asm/cacheflush.h>
 #include <asm/fixmap.h>
 #include <asm/kernel-pgtable.h>