packages: lirc/lirc-kernel.patch - 2.6.33 fixes
arekm
arekm at pld-linux.org
Sun Mar 7 19:14:35 CET 2010
Author: arekm Date: Sun Mar 7 18:14:35 2010 GMT
Module: packages Tag: HEAD
---- Log message:
- 2.6.33 fixes
---- Files affected:
packages/lirc:
lirc-kernel.patch (1.1 -> 1.2)
---- Diffs:
================================================================
Index: packages/lirc/lirc-kernel.patch
diff -u packages/lirc/lirc-kernel.patch:1.1 packages/lirc/lirc-kernel.patch:1.2
--- packages/lirc/lirc-kernel.patch:1.1 Fri Jan 8 20:53:33 2010
+++ packages/lirc/lirc-kernel.patch Sun Mar 7 19:14:30 2010
@@ -10,3 +10,272 @@
.attach_adapter = ir_probe,
.detach_client = ir_remove,
#else
+--- a/drivers/lirc_dev/lirc_dev.h 2009/03/15 09:34:00 1.37
++++ a/drivers/lirc_dev/lirc_dev.h 2010/01/23 16:28:07 1.39
+@@ -4,7 +4,7 @@
+ * (L) by Artur Lipowski <alipowski at interia.pl>
+ * This code is licensed under GNU GPL
+ *
+- * $Id$
++ * $Id$
+ *
+ */
+
+@@ -30,14 +30,19 @@
+
+ struct lirc_buffer {
+ wait_queue_head_t wait_poll;
+- spinlock_t lock;
++ spinlock_t fifo_lock;
+ unsigned int chunk_size;
+ unsigned int size; /* in chunks */
+ /* Using chunks instead of bytes pretends to simplify boundary checking
+ * And should allow for some performance fine tunning later */
+ #ifdef LIRC_HAVE_KFIFO
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 33)
+ struct kfifo *fifo;
+ #else
++ struct kfifo fifo;
++ u8 fifo_initialized;
++#endif
++#else
+ unsigned int fill; /* in chunks */
+ int head, tail; /* in chunks */
+ unsigned char *data;
+@@ -47,12 +52,12 @@
+ static inline void lirc_buffer_lock(struct lirc_buffer *buf,
+ unsigned long *flags)
+ {
+- spin_lock_irqsave(&buf->lock, *flags);
++ spin_lock_irqsave(&buf->fifo_lock, *flags);
+ }
+ static inline void lirc_buffer_unlock(struct lirc_buffer *buf,
+ unsigned long *flags)
+ {
+- spin_unlock_irqrestore(&buf->lock, *flags);
++ spin_unlock_irqrestore(&buf->fifo_lock, *flags);
+ }
+ static inline void _lirc_buffer_clear(struct lirc_buffer *buf)
+ {
+@@ -64,10 +69,21 @@
+ static inline void lirc_buffer_clear(struct lirc_buffer *buf)
+ {
+ #ifdef LIRC_HAVE_KFIFO
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 33)
+ if (buf->fifo)
+ kfifo_reset(buf->fifo);
+ #else
+ unsigned long flags;
++
++ if (buf->fifo_initialized) {
++ spin_lock_irqsave(&buf->fifo_lock, flags);
++ kfifo_reset(&buf->fifo);
++ spin_unlock_irqrestore(&buf->fifo_lock, flags);
++ }
++#endif
++#else
++ unsigned long flags;
++
+ lirc_buffer_lock(buf, &flags);
+ _lirc_buffer_clear(buf);
+ lirc_buffer_unlock(buf, &flags);
+@@ -77,31 +93,47 @@
+ unsigned int chunk_size,
+ unsigned int size)
+ {
++ int ret = 0;
++
+ init_waitqueue_head(&buf->wait_poll);
+- spin_lock_init(&buf->lock);
++ spin_lock_init(&buf->fifo_lock);
+ #ifndef LIRC_HAVE_KFIFO
+ _lirc_buffer_clear(buf);
+ #endif
+ buf->chunk_size = chunk_size;
+ buf->size = size;
+ #ifdef LIRC_HAVE_KFIFO
+- buf->fifo = kfifo_alloc(size*chunk_size, GFP_KERNEL, &buf->lock);
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 33)
++ buf->fifo = kfifo_alloc(size*chunk_size, GFP_KERNEL, &buf->fifo_lock);
+ if (!buf->fifo)
+ return -ENOMEM;
+ #else
++ ret = kfifo_alloc(&buf->fifo, size * chunk_size, GFP_KERNEL);
++ if (ret == 0)
++ buf->fifo_initialized = 1;
++#endif
++#else
+ buf->data = kmalloc(size*chunk_size, GFP_KERNEL);
+ if (buf->data == NULL)
+ return -ENOMEM;
+ memset(buf->data, 0, size*chunk_size);
+ #endif
+- return 0;
++
++ return ret;
+ }
+ static inline void lirc_buffer_free(struct lirc_buffer *buf)
+ {
+ #ifdef LIRC_HAVE_KFIFO
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 33)
+ if (buf->fifo)
+ kfifo_free(buf->fifo);
+ #else
++ if (buf->fifo_initialized) {
++ kfifo_free(&buf->fifo);
++ buf->fifo_initialized = 0;
++ }
++#endif
++#else
+ kfree(buf->data);
+ buf->data = NULL;
+ buf->head = 0;
+@@ -111,6 +143,25 @@
+ buf->size = 0;
+ #endif
+ }
++
++#ifdef LIRC_HAVE_KFIFO
++static inline int lirc_buffer_len(struct lirc_buffer *buf)
++{
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 33)
++ return kfifo_len(buf->fifo);
++#else
++ int len;
++ unsigned long flags;
++
++ spin_lock_irqsave(&buf->fifo_lock, flags);
++ len = kfifo_len(&buf->fifo);
++ spin_unlock_irqrestore(&buf->fifo_lock, flags);
++
++ return len;
++#endif
++}
++#endif
++
+ #ifndef LIRC_HAVE_KFIFO
+ static inline int _lirc_buffer_full(struct lirc_buffer *buf)
+ {
+@@ -120,7 +171,7 @@
+ static inline int lirc_buffer_full(struct lirc_buffer *buf)
+ {
+ #ifdef LIRC_HAVE_KFIFO
+- return kfifo_len(buf->fifo) == buf->size * buf->chunk_size;
++ return lirc_buffer_len(buf) == buf->size * buf->chunk_size;
+ #else
+ unsigned long flags;
+ int ret;
+@@ -139,7 +190,7 @@
+ static inline int lirc_buffer_empty(struct lirc_buffer *buf)
+ {
+ #ifdef LIRC_HAVE_KFIFO
+- return !kfifo_len(buf->fifo);
++ return !lirc_buffer_len(buf);
+ #else
+ unsigned long flags;
+ int ret;
+@@ -158,7 +209,7 @@
+ static inline int lirc_buffer_available(struct lirc_buffer *buf)
+ {
+ #ifdef LIRC_HAVE_KFIFO
+- return buf->size - (kfifo_len(buf->fifo) / buf->chunk_size);
++ return buf->size - (lirc_buffer_len(buf) / buf->chunk_size);
+ #else
+ unsigned long flags;
+ int ret;
+@@ -177,21 +228,30 @@
+ buf->fill -= 1;
+ }
+ #endif
+-static inline void lirc_buffer_read(struct lirc_buffer *buf,
+- unsigned char *dest)
++static inline unsigned int lirc_buffer_read(struct lirc_buffer *buf,
++ unsigned char *dest)
+ {
++ unsigned int ret = 0;
++
+ #ifdef LIRC_HAVE_KFIFO
+- if (kfifo_len(buf->fifo) >= buf->chunk_size)
+- kfifo_get(buf->fifo, dest, buf->chunk_size);
++ if (lirc_buffer_len(buf) >= buf->chunk_size)
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 33)
++ ret = kfifo_get(buf->fifo, dest, buf->chunk_size);
++#else
++ ret = kfifo_out_locked(&buf->fifo, dest, buf->chunk_size,
++ &buf->fifo_lock);
++#endif
+ #else
+ unsigned long flags;
+ lirc_buffer_lock(buf, &flags);
+ _lirc_buffer_read_1(buf, dest);
+ lirc_buffer_unlock(buf, &flags);
+ #endif
++
++ return ret;
+ }
+ #ifndef LIRC_HAVE_KFIFO
+-static inline void _lirc_buffer_write_1(struct lirc_buffer *buf,
++static inline _lirc_buffer_write_1(struct lirc_buffer *buf,
+ unsigned char *orig)
+ {
+ memcpy(&buf->data[buf->tail*buf->chunk_size], orig, buf->chunk_size);
+@@ -199,17 +259,26 @@
+ buf->fill++;
+ }
+ #endif
+-static inline void lirc_buffer_write(struct lirc_buffer *buf,
+- unsigned char *orig)
++static inline unsigned int lirc_buffer_write(struct lirc_buffer *buf,
++ unsigned char *orig)
+ {
++ unsigned int ret = 0;
++
+ #ifdef LIRC_HAVE_KFIFO
+- kfifo_put(buf->fifo, orig, buf->chunk_size);
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 33)
++ ret = kfifo_put(buf->fifo, orig, buf->chunk_size);
++#else
++ ret = kfifo_in_locked(&buf->fifo, orig, buf->chunk_size,
++ &buf->fifo_lock);
++#endif
+ #else
+ unsigned long flags;
+ lirc_buffer_lock(buf, &flags);
+ _lirc_buffer_write_1(buf, orig);
+ lirc_buffer_unlock(buf, &flags);
+ #endif
++
++ return ret;
+ }
+ #ifndef LIRC_HAVE_KFIFO
+ static inline void _lirc_buffer_write_n(struct lirc_buffer *buf,
+@@ -234,17 +303,26 @@
+ buf->fill += count;
+ }
+ #endif
+-static inline void lirc_buffer_write_n(struct lirc_buffer *buf,
+- unsigned char *orig, int count)
++static inline unsigned int lirc_buffer_write_n(struct lirc_buffer *buf,
++ unsigned char *orig, int count)
+ {
++ unsigned int ret = 0;
++
+ #ifdef LIRC_HAVE_KFIFO
+- kfifo_put(buf->fifo, orig, count * buf->chunk_size);
++#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 33)
++ ret = kfifo_put(buf->fifo, orig, count * buf->chunk_size);
++#else
++ ret = kfifo_in_locked(&buf->fifo, orig, count * buf->chunk_size,
++ &buf->fifo_lock);
++#endif
+ #else
+ unsigned long flags;
+ lirc_buffer_lock(buf, &flags);
+ _lirc_buffer_write_n(buf, orig, count);
+ lirc_buffer_unlock(buf, &flags);
+ #endif
++
++ return ret;
+ }
+
+ struct lirc_driver {
================================================================
---- CVS-web:
http://cvs.pld-linux.org/cgi-bin/cvsweb.cgi/packages/lirc/lirc-kernel.patch?r1=1.1&r2=1.2&f=u
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