From f1eedfa6dedb9b6f0fa33724c7072a5e82c67e16 Mon Sep 17 00:00:00 2001
From: David Schleef <ds@schleef.org>
Date: Mon, 27 Aug 2001 09:55:40 +0000
Subject: [PATCH] Fixes for compiling with 2.0.x

---
 include/asm/dma.h         | 25 +++++++++++++++++++++++++
 include/linux/comedidev.h |  2 ++
 include/linux/fs.h        |  5 +++++
 include/linux/kmod.h      | 17 +++++++++++++++++
 include/linux/module.h    |  1 +
 include/linux/poll.h      | 17 +++++++++++++++++
 include/linux/sched.h     | 17 +++++++++++++++++
 include/linux/spinlock.h  | 21 +++++++++++++++++++++
 include/linux/timer.h     | 18 ++++++++++++++++++
 include/linux/vmalloc.h   | 17 +++++++++++++++++
 10 files changed, 140 insertions(+)
 create mode 100644 include/asm/dma.h
 create mode 100644 include/linux/kmod.h
 create mode 100644 include/linux/poll.h
 create mode 100644 include/linux/sched.h
 create mode 100644 include/linux/timer.h
 create mode 100644 include/linux/vmalloc.h

diff --git a/include/asm/dma.h b/include/asm/dma.h
new file mode 100644
index 00000000..60abc156
--- /dev/null
+++ b/include/asm/dma.h
@@ -0,0 +1,25 @@
+/*
+ * asm/dma.h compatibility header
+ */
+
+#ifndef __COMPAT_ASM_DMA_H_
+#define __COMPAT_ASM_DMA_H_
+
+#include <linux/version.h>
+
+#if LINUX_VERSION_CODE < 0x020200
+#include <asm/system.h>
+static __inline__ unsigned long claim_dma_lock(void)
+{
+	unsigned long flags;
+	save_flags(flags);
+	cli();
+	return flags;
+}
+#define release_dma_lock(x)	restore_flags(x)
+#endif
+
+#include_next <asm/dma.h>
+
+#endif
+
diff --git a/include/linux/comedidev.h b/include/linux/comedidev.h
index bf46295b..3b41c2c5 100644
--- a/include/linux/comedidev.h
+++ b/include/linux/comedidev.h
@@ -29,6 +29,8 @@
 #include <linux/kdev_t.h>
 #include <linux/malloc.h>
 #include <linux/errno.h>
+#include <linux/spinlock.h>
+
 #include <linux/comedi.h>
 
 
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 736b592d..7baf1314 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -7,11 +7,16 @@
 
 #include <linux/version.h>
 
+#if LINUX_VERSION_CODE < 0x020400
+/* no fasync */
+#define KILL_FASYNC(a,b,c)
+#else
 #if LINUX_VERSION_CODE < 0x020400
 #define KILL_FASYNC(a,b,c)	kill_fasync((a),(c))
 #else
 #define KILL_FASYNC(a,b,c)	kill_fasync(&(a),(b),(c))
 #endif
+#endif
 
 #include_next <linux/fs.h>
 
diff --git a/include/linux/kmod.h b/include/linux/kmod.h
new file mode 100644
index 00000000..f356b8fc
--- /dev/null
+++ b/include/linux/kmod.h
@@ -0,0 +1,17 @@
+/*
+ * linux/kmod.h compatibility header
+ */
+
+#ifndef __COMPAT_LINUX_KMOD_H_
+#define __COMPAT_LINUX_KMOD_H_
+
+#include <linux/version.h>
+
+#if LINUX_VERSION_CODE < 0x020200
+
+#else
+#include_next <linux/kmod.h>
+#endif
+
+#endif
+
diff --git a/include/linux/module.h b/include/linux/module.h
index e7e38d13..979b365a 100644
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -23,6 +23,7 @@
   #endif
   #define __MOD_INC_USE_COUNT(x)	((*(long *)(x))++, (*(long *)(x)) |= MOD_VISITED)
   #define __MOD_DEC_USE_COUNT(x)	((*(long *)(x))--, (*(long *)(x)) |= MOD_VISITED)
+  #define EXPORT_SYMBOL(x)
 #else
   #ifdef MODULE
     #define THIS_MODULE	&__this_module
diff --git a/include/linux/poll.h b/include/linux/poll.h
new file mode 100644
index 00000000..bafeb0a2
--- /dev/null
+++ b/include/linux/poll.h
@@ -0,0 +1,17 @@
+/*
+ * linux/poll.h compatibility header
+ */
+
+#ifndef __COMPAT_LINUX_POLL_H_
+#define __COMPAT_LINUX_POLL_H_
+
+#include <linux/version.h>
+
+#if LINUX_VERSION_CODE < 0x020200
+
+#else
+#include_next <linux/poll.h>
+#endif
+
+#endif
+
diff --git a/include/linux/sched.h b/include/linux/sched.h
new file mode 100644
index 00000000..66d0af37
--- /dev/null
+++ b/include/linux/sched.h
@@ -0,0 +1,17 @@
+/*
+ * linux/fs.h compatibility header
+ */
+
+#ifndef __COMPAT_LINUX_POLL_H_
+#define __COMPAT_LINUX_POLL_H_
+
+#include <linux/version.h>
+
+#if LINUX_VERSION_CODE < 0x020200
+#define signal_pending(x)	(((x)->signal) & (~(x)->blocked))
+#endif
+
+#include_next <linux/sched.h>
+
+#endif
+
diff --git a/include/linux/spinlock.h b/include/linux/spinlock.h
index aa71cbf7..8588796a 100644
--- a/include/linux/spinlock.h
+++ b/include/linux/spinlock.h
@@ -7,11 +7,32 @@
 
 #include <linux/version.h>
 
+#if LINUX_VERSION_CODE < 0x020100
+/* no spinlocks */
+typedef int spinlock_t;
+
+#define spin_lock_init(lock)    do { } while(0)
+#define spin_lock(lock)         (void)(lock) /* Not "unused variable". */
+#define spin_trylock(lock)      (1)
+#define spin_unlock_wait(lock)  do { } while(0)
+#define spin_unlock(lock)       do { } while(0)
+#define spin_lock_irq(lock)     cli()
+#define spin_unlock_irq(lock)   sti()
+
+#define spin_lock_irqsave(lock, flags) \
+	do { save_flags(flags); cli(); } while (0)
+#define spin_unlock_irqrestore(lock, flags) \
+	restore_flags(flags)
+
+#define SPIN_LOCK_UNLOCKED 0
+
+#else
 #if LINUX_VERSION_CODE < 0x020300
 #include <asm/spinlock.h>
 #else
 #include_next <linux/spinlock.h>
 #endif
+#endif
 
 
 #endif /* _COMPAT_SPINLOCK_H */
diff --git a/include/linux/timer.h b/include/linux/timer.h
new file mode 100644
index 00000000..2b0f113b
--- /dev/null
+++ b/include/linux/timer.h
@@ -0,0 +1,18 @@
+/*
+ * linux/timer.h compatibility header
+ */
+
+#ifndef __COMPAT_LINUX_TIMER_H_
+#define __COMPAT_LINUX_TIMER_H_
+
+#include <linux/version.h>
+
+#if LINUX_VERSION_CODE < 0x020200
+
+#define mod_timer(a,b)	do{del_timer((a));(a)->expires=(b);add_timer((a));}while(0)
+#endif
+
+#include_next <linux/timer.h>
+
+#endif
+
diff --git a/include/linux/vmalloc.h b/include/linux/vmalloc.h
new file mode 100644
index 00000000..def457c7
--- /dev/null
+++ b/include/linux/vmalloc.h
@@ -0,0 +1,17 @@
+/*
+ * linux/vmalloc.h compatibility header
+ */
+
+#ifndef __COMPAT_LINUX_VMALLOC_H_
+#define __COMPAT_LINUX_VMALLOC_H_
+
+#include <linux/version.h>
+
+#if LINUX_VERSION_CODE < 0x020200
+
+#else
+#include_next <linux/vmalloc.h>
+#endif
+
+#endif
+
-- 
2.26.2