[tip: x86/irq] x86/irq: Improve definition of VECTOR_SHUTDOWN et al

From: tip-bot2 for Heiner Kallweit
Date: Thu Aug 22 2019 - 21:55:39 EST

The following commit has been merged into the x86/irq branch of tip:

Commit-ID: e30c44e2e59c98023997632815cbc5e273991c25
Gitweb: https://git.kernel.org/tip/e30c44e2e59c98023997632815cbc5e273991c25
Author: Heiner Kallweit <hkallweit1@xxxxxxxxx>
AuthorDate: Mon, 19 Aug 2019 21:34:47 +02:00
Committer: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
CommitterDate: Mon, 19 Aug 2019 23:19:06 +02:00

x86/irq: Improve definition of VECTOR_SHUTDOWN et al

These values are used with IS_ERR(), so it's more intuitive to define
them like a standard PTR_ERR() of a negative errno.

Signed-off-by: Heiner Kallweit <hkallweit1@xxxxxxxxx>
Signed-off-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Link: https://lkml.kernel.org/r/146835e8-c086-4e85-7ece-bcba6795e6db@xxxxxxxxx

arch/x86/include/asm/hw_irq.h | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/x86/include/asm/hw_irq.h b/arch/x86/include/asm/hw_irq.h
index cbd97e2..4154bc5 100644
--- a/arch/x86/include/asm/hw_irq.h
+++ b/arch/x86/include/asm/hw_irq.h
@@ -153,8 +153,8 @@ extern char irq_entries_start[];
extern char spurious_entries_start[];

-#define VECTOR_SHUTDOWN ((void *)~0UL)
-#define VECTOR_RETRIGGERED ((void *)~1UL)
+#define VECTOR_SHUTDOWN ((void *)-1L)
+#define VECTOR_RETRIGGERED ((void *)-2L)

typedef struct irq_desc* vector_irq_t[NR_VECTORS];
DECLARE_PER_CPU(vector_irq_t, vector_irq);