From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jonathan Corbet Subject: [PATCH] Remove auto_irq.c Date: Fri, 14 May 2004 09:44:49 -0600 Sender: netdev-bounce@oss.sgi.com Message-ID: <20040514154449.4360.qmail@lwn.net> Cc: jgarzik@pobox.com Return-path: To: netdev@oss.sgi.com Errors-to: netdev-bounce@oss.sgi.com List-Id: netdev.vger.kernel.org I was looking to see if anything still uses the autoirq_* functions in 2.6. Turns out that nothing does; in fact, the file is not even compiled. I would guess we don't need to lug auto_irq.c around anymore... jon diff -purN -X dontdiff 2.6.6-vanilla/drivers/net/auto_irq.c 2.6.6/drivers/net/auto_irq.c --- 2.6.6-vanilla/drivers/net/auto_irq.c 2003-09-08 13:50:06.000000000 -0600 +++ 2.6.6/drivers/net/auto_irq.c 1969-12-31 17:00:00.000000000 -0700 @@ -1,68 +0,0 @@ -/* auto_irq.c: Auto-configure IRQ lines for linux. */ -/* - Written 1994 by Donald Becker. - - The author may be reached as becker@scyld.com - - This code is a general-purpose IRQ line detector for devices with - jumpered IRQ lines. If you can make the device raise an IRQ (and - that IRQ line isn't already being used), these routines will tell - you what IRQ line it's using -- perfect for those oh-so-cool boot-time - device probes! - - To use this, first call autoirq_setup(timeout). TIMEOUT is how many - 'jiffies' (1/100 sec.) to detect other devices that have active IRQ lines, - and can usually be zero at boot. 'autoirq_setup()' returns the bit - vector of nominally-available IRQ lines (lines may be physically in-use, - but not yet registered to a device). - Next, set up your device to trigger an interrupt. - Finally call autoirq_report(TIMEOUT) to find out which IRQ line was - most recently active. The TIMEOUT should usually be zero, but may - be set to the number of jiffies to wait for a slow device to raise an IRQ. - - The idea of using the setup timeout to filter out bogus IRQs came from - the serial driver. -*/ - - -#ifdef version -static const char *version= -"auto_irq.c:v1.11 Donald Becker (becker@scyld.com)"; -#endif - -#include -#include -#include -#include -#include -#include -#include - -static unsigned long irqs; - -void autoirq_setup(int waittime) -{ - irqs = probe_irq_on(); -} - -#define BUSY_LOOP_UNTIL(j) while ((long)(jiffies-(j)) < 0) ; -int autoirq_report(int waittime) -{ - unsigned long delay = jiffies + waittime; - BUSY_LOOP_UNTIL(delay) - return probe_irq_off(irqs); -} - -EXPORT_SYMBOL(autoirq_setup); -EXPORT_SYMBOL(autoirq_report); - - -/* - * Local variables: - * compile-command: "gcc -DKERNEL -Wall -O6 -fomit-frame-pointer -I/usr/src/linux/net/tcp -c auto_irq.c" - * version-control: t - * kept-new-versions: 5 - * c-indent-level: 4 - * tab-width: 4 - * End: - */