linux-kernel - [PATCH 2/9] irq-remove: arch non-trivial

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20071019075543.GC6407@havoc.gtf.org>
Date:	Fri, 19 Oct 2007 03:55:43 -0400
From:	Jeff Garzik <jeff@...zik.org>
To:	LKML <linux-kernel@...r.kernel.org>
Cc:	Eric Biederman <ebiederm@...ssion.com>
Subject: [PATCH 2/9] irq-remove: arch non-trivial


commit 8d45690dd90b18daaa21b981ab20caf393220bf0
Author: Jeff Garzik <jeff@...zik.org>
Date:   Fri Oct 19 00:46:23 2007 -0400

    [IRQ ARG REMOVAL] various non-trivial arch updates

 arch/x86/kernel/vm86_32.c     |    3 ++-
 include/asm-x86/irq_regs_32.h |   25 +++++++++++++++++++++++++
 2 files changed, 27 insertions(+), 1 deletion(-)

8d45690dd90b18daaa21b981ab20caf393220bf0
diff --git a/arch/x86/kernel/vm86_32.c b/arch/x86/kernel/vm86_32.c
index 157e4be..18aae9e 100644
--- a/arch/x86/kernel/vm86_32.c
+++ b/arch/x86/kernel/vm86_32.c
@@ -739,10 +739,11 @@ static int irqbits;
 	| (1 << SIGUSR1) | (1 << SIGUSR2) | (1 << SIGIO)  | (1 << SIGURG) \
 	| (1 << SIGUNUSED) )
 	
-static irqreturn_t irq_handler(int intno, void *dev_id)
+static irqreturn_t irq_handler(void *dev_id)
 {
 	int irq_bit;
 	unsigned long flags;
+	unsigned int intno = get_irqfunc_irq();
 
 	spin_lock_irqsave(&irqbits_lock, flags);	
 	irq_bit = 1 << intno;
diff --git a/include/asm-x86/irq_regs_32.h b/include/asm-x86/irq_regs_32.h
index 3368b20..68a531d 100644
--- a/include/asm-x86/irq_regs_32.h
+++ b/include/asm-x86/irq_regs_32.h
@@ -26,4 +26,29 @@ static inline struct pt_regs *set_irq_regs(struct pt_regs *new_regs)
 	return old_regs;
 }
 
+DECLARE_PER_CPU(unsigned int, __irqfunc_irqs);
+
+static inline unsigned int get_irqfunc_irq(void)
+{
+	return __get_cpu_var(__irqfunc_irqs);
+}
+
+#if 0
+static inline unsigned int set_irqfunc_irq(unsigned int new_irq)
+{
+	unsigned int old_irq, *pirq = &__get_cpu_var(__irqfunc_irqs);
+
+	old_irq = *pirq;
+	*pirq = new_irq;
+	return old_irq;
+}
+#else
+static inline void set_irqfunc_irq(unsigned int new_irq)
+{
+	int *pirq = &__get_cpu_var(__irqfunc_irqs);
+
+	*pirq = new_irq;
+}
+#endif
+
 #endif /* _ASM_I386_IRQ_REGS_H */
-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/