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  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]
Date:   Fri, 18 Dec 2020 15:57:39 +0100
From:   "Enrico Weigelt, metux IT consult" <info@...ux.net>
To:     linux-kernel@...r.kernel.org
Cc:     mark.rutland@....com, alexander.shishkin@...ux.intel.com,
        jolsa@...hat.com, namhyung@...nel.org, catalin.marinas@....com,
        will@...nel.org, msalter@...hat.com, jacquiot.aurelien@...il.com,
        gerg@...ux-m68k.org, geert@...ux-m68k.org,
        tsbogend@...ha.franken.de, James.Bottomley@...senPartnership.com,
        deller@....de, benh@...nel.crashing.org, paulus@...ba.org,
        ysato@...rs.sourceforge.jp, dalias@...c.org, davem@...emloft.net,
        tglx@...utronix.de, bp@...en8.de, x86@...nel.org, hpa@...or.com,
        linus.walleij@...aro.org, bgolaszewski@...libre.com,
        maz@...nel.org, tony@...mide.com, arnd@...db.de,
        linux-alpha@...r.kernel.org, linux-c6x-dev@...ux-c6x.org,
        linux-ia64@...r.kernel.org, linux-m68k@...ts.linux-m68k.org,
        linux-mips@...r.kernel.org, linux-parisc@...r.kernel.org,
        linuxppc-dev@...ts.ozlabs.org, linux-s390@...r.kernel.org,
        linux-sh@...r.kernel.org, sparclinux@...r.kernel.org,
        linux-gpio@...r.kernel.org, linux-omap@...r.kernel.org,
        linux-arch@...r.kernel.org
Subject: [PATCH 16/23] arch: alpha: use generic irq error counter

Use the newly introduced irq error counter, that's already maintained
by all callers of ack_bad_irq(), in order to remove duplicate code.

Signed-off-by: Enrico Weigelt, metux IT consult <info@...ux.net>
---
 arch/alpha/include/asm/hardirq.h |  3 ---
 arch/alpha/include/asm/hw_irq.h  |  2 --
 arch/alpha/kernel/irq.c          | 12 +++---------
 arch/alpha/kernel/irq_alpha.c    |  5 +++--
 arch/alpha/kernel/perf_event.c   |  6 +++---
 5 files changed, 9 insertions(+), 19 deletions(-)

diff --git a/arch/alpha/include/asm/hardirq.h b/arch/alpha/include/asm/hardirq.h
index 5ce5b34e8a1a..0bbc9947e364 100644
--- a/arch/alpha/include/asm/hardirq.h
+++ b/arch/alpha/include/asm/hardirq.h
@@ -2,9 +2,6 @@
 #ifndef _ALPHA_HARDIRQ_H
 #define _ALPHA_HARDIRQ_H
 
-void ack_bad_irq(unsigned int irq);
-#define ack_bad_irq ack_bad_irq
-
 #include <asm-generic/hardirq.h>
 
 #endif /* _ALPHA_HARDIRQ_H */
diff --git a/arch/alpha/include/asm/hw_irq.h b/arch/alpha/include/asm/hw_irq.h
index e2d81ac0d934..0be79f3a6cae 100644
--- a/arch/alpha/include/asm/hw_irq.h
+++ b/arch/alpha/include/asm/hw_irq.h
@@ -2,8 +2,6 @@
 #ifndef _ALPHA_HW_IRQ_H
 #define _ALPHA_HW_IRQ_H
 
-
-extern volatile unsigned long irq_err_count;
 DECLARE_PER_CPU(unsigned long, irq_pmi_count);
 
 #ifdef CONFIG_ALPHA_GENERIC
diff --git a/arch/alpha/kernel/irq.c b/arch/alpha/kernel/irq.c
index c1980eea75a6..2b7dad83e0dc 100644
--- a/arch/alpha/kernel/irq.c
+++ b/arch/alpha/kernel/irq.c
@@ -25,18 +25,12 @@
 #include <linux/seq_file.h>
 #include <linux/profile.h>
 #include <linux/bitops.h>
-
+#include <asm-generic/irq-err.h>
 #include <asm/io.h>
 #include <linux/uaccess.h>
 
-volatile unsigned long irq_err_count;
 DEFINE_PER_CPU(unsigned long, irq_pmi_count);
 
-void ack_bad_irq(unsigned int irq)
-{
-	irq_err_count++;
-}
-
 #ifdef CONFIG_SMP 
 static char irq_user_affinity[NR_IRQS];
 
@@ -79,7 +73,7 @@ int arch_show_interrupts(struct seq_file *p, int prec)
 	for_each_online_cpu(j)
 		seq_printf(p, "%10lu ", per_cpu(irq_pmi_count, j));
 	seq_puts(p, "          Performance Monitoring\n");
-	seq_printf(p, "ERR: %10lu\n", irq_err_count);
+	seq_printf(p, "ERR: %10lu\n", irq_err_get());
 	return 0;
 }
 
@@ -109,7 +103,7 @@ handle_irq(int irq)
 	
 	if (!desc || ((unsigned) irq > ACTUAL_NR_IRQS &&
 	    illegal_count < MAX_ILLEGAL_IRQS)) {
-		irq_err_count++;
+		irq_err_inc();
 		illegal_count++;
 		printk(KERN_CRIT "device_interrupt: invalid interrupt %d\n",
 		       irq);
diff --git a/arch/alpha/kernel/irq_alpha.c b/arch/alpha/kernel/irq_alpha.c
index d17e44c99df9..3b6373cf73d9 100644
--- a/arch/alpha/kernel/irq_alpha.c
+++ b/arch/alpha/kernel/irq_alpha.c
@@ -13,6 +13,7 @@
 #include <asm/dma.h>
 #include <asm/perf_event.h>
 #include <asm/mce.h>
+#include <asm-generic/irq-err.h>
 
 #include "proto.h"
 #include "irq_impl.h"
@@ -30,7 +31,7 @@ EXPORT_SYMBOL(__min_ipl);
 static void
 dummy_perf(unsigned long vector, struct pt_regs *regs)
 {
-	irq_err_count++;
+	irq_err_inc();
 	printk(KERN_CRIT "Performance counter interrupt!\n");
 }
 
@@ -60,7 +61,7 @@ do_entInt(unsigned long type, unsigned long vector,
 		handle_ipi(regs);
 		return;
 #else
-		irq_err_count++;
+		irq_err_inc();
 		printk(KERN_CRIT "Interprocessor interrupt? "
 		       "You must be kidding!\n");
 #endif
diff --git a/arch/alpha/kernel/perf_event.c b/arch/alpha/kernel/perf_event.c
index e7a59d927d78..d855cece7bb1 100644
--- a/arch/alpha/kernel/perf_event.c
+++ b/arch/alpha/kernel/perf_event.c
@@ -16,7 +16,7 @@
 #include <linux/kdebug.h>
 #include <linux/mutex.h>
 #include <linux/init.h>
-
+#include <asm-generic/irq-err.h>
 #include <asm/hwrpb.h>
 #include <linux/atomic.h>
 #include <asm/irq.h>
@@ -823,7 +823,7 @@ static void alpha_perf_event_irq_handler(unsigned long la_ptr,
 	/* la_ptr is the counter that overflowed. */
 	if (unlikely(la_ptr >= alpha_pmu->num_pmcs)) {
 		/* This should never occur! */
-		irq_err_count++;
+		irq_err_inc();
 		pr_warn("PMI: silly index %ld\n", la_ptr);
 		wrperfmon(PERFMON_CMD_ENABLE, cpuc->idx_mask);
 		return;
@@ -846,7 +846,7 @@ static void alpha_perf_event_irq_handler(unsigned long la_ptr,
 
 	if (unlikely(!event)) {
 		/* This should never occur! */
-		irq_err_count++;
+		irq_err_inc();
 		pr_warn("PMI: No event at index %d!\n", idx);
 		wrperfmon(PERFMON_CMD_ENABLE, cpuc->idx_mask);
 		return;
-- 
2.11.0

Powered by blists - more mailing lists