From: Mike Frysinger <vapier@gentoo.org>
To: Arnd Bergmann <arnd@arndb.de>
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH] asm-generic: hard_irqs: handle NR_IRQS > 256 automatically
Date: Sat, 13 Jun 2009 10:30:47 -0400 [thread overview]
Message-ID: <1244903447-23579-2-git-send-email-vapier@gentoo.org> (raw)
In-Reply-To: <1244903447-23579-1-git-send-email-vapier@gentoo.org>
If we're going to automatically set HARDIRQ_BITS for the arch, might as
well be a little bit smart about it and set it to 9 automatically if
NR_IRQS is larger than 8 bits.
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
---
include/asm-generic/hardirq.h | 6 +++++-
1 files changed, 5 insertions(+), 1 deletions(-)
diff --git a/include/asm-generic/hardirq.h b/include/asm-generic/hardirq.h
index 3d5d2c9..d93acec 100644
--- a/include/asm-generic/hardirq.h
+++ b/include/asm-generic/hardirq.h
@@ -12,7 +12,11 @@ typedef struct {
#include <linux/irq_cpustat.h> /* Standard mappings for irq_cpustat_t above */
#ifndef HARDIRQ_BITS
-#define HARDIRQ_BITS 8
+# if NR_IRQS > 256
+# define HARDIRQ_BITS 9
+# else
+# define HARDIRQ_BITS 8
+# endif
#endif
/*
--
1.6.3.1
next prev parent reply other threads:[~2009-06-13 14:31 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-06-13 14:30 [PATCH] asm-generic: uaccess: fix up local access_ok() usage Mike Frysinger
2009-06-13 14:30 ` Mike Frysinger [this message]
2009-06-13 17:57 ` [PATCH] asm-generic: hard_irqs: handle NR_IRQS > 256 automatically H. Peter Anvin
2009-06-13 21:18 ` Arnd Bergmann
2009-06-14 0:25 ` Mike Frysinger
2009-06-14 20:43 ` [PATCH] asm-generic: drop HARDIRQ_BITS definition from hardirq.h Arnd Bergmann
2009-06-15 15:59 ` Steven Rostedt
2009-06-15 16:17 ` Mike Frysinger
2009-06-15 16:44 ` Steven Rostedt
2009-06-16 14:37 ` [PATCH v3] " Arnd Bergmann
2009-06-13 15:59 ` [PATCH] asm-generic: uaccess: fix up local access_ok() usage Mike Frysinger
2009-06-13 20:53 ` Arnd Bergmann
2009-06-14 0:47 ` Mike Frysinger
2009-06-14 10:10 ` Arnd Bergmann
2009-06-14 10:17 ` Mike Frysinger
2009-06-14 10:24 ` Arnd Bergmann
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