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[PATCH] I2O: first code cleanup of spare warnings and unused functions

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Changes:

 - Removed unnecessary checking of NULL before calling kfree()
 - Make some functions static
 - Changed pr_debug() into osm_debug()
 - Use i2o_msg_in_to_virt() for getting a pointer to the message frame
 - Cleaned up some comments
 - Changed some le32_to_cpu() into readl() where necessary
 - Make error messages of OSM's look the same
 - Cleaned up error handling in i2o_block_end_request()
 - Removed unused error handling of failed messages in Block-OSM, which
   are not allowed by the I2O spec
 - Corrected the blocksize detection in i2o_block
 - Added hrt and lct sysfs-attribute to controller
 - Call done() function in SCSI-OSM after freeing DMA buffers
 - Removed unneeded variable for message size calculation in
   i2o_scsi_queuecommand()
 - Make some changes to remove sparse warnings
 - Reordered some functions
 - Cleaned up controller initialization
 - Replaced some magic numbers by defines
 - Removed unnecessary dma_sync_single_for_cpu() call on coherent DMA
 - Removed some unused fields in i2o_controller and removed some unused
   functions

Signed-off-by: Markus Lidel <Markus.Lidel@shadowconnect.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Markus Lidel
2005-06-23 22:02:14 -07:00
committed by Linus Torvalds
parent 61fbfa8129
commit f88e119c4b
10 changed files with 359 additions and 339 deletions
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74
include/linux/i2o.h
View File

@@ -153,12 +153,10 @@ struct i2o_controller {
unsigned int promise:1; /* Promise controller */
struct list_head devices; /* list of I2O devices */
struct notifier_block *event_notifer; /* Events */
atomic_t users;
struct list_head list; /* Controller list */
void __iomem *post_port; /* Inbout port address */
void __iomem *reply_port; /* Outbound port address */
void __iomem *in_port; /* Inbout port address */
void __iomem *out_port; /* Outbound port address */
void __iomem *irq_mask; /* Interrupt register address */
/* Dynamic LCT related data */
@@ -182,9 +180,6 @@ struct i2o_controller {
struct resource io_resource; /* I/O resource allocated to the IOP */
struct resource mem_resource; /* Mem resource allocated to the IOP */
struct proc_dir_entry *proc_entry; /* /proc dir */
struct list_head bus_list; /* list of busses on IOP */
struct device device;
struct i2o_device *exec; /* Executive */
#if BITS_PER_LONG == 64
@@ -380,49 +375,10 @@ extern int i2o_device_claim_release(struct i2o_device *);
/* Exec OSM functions */
extern int i2o_exec_lct_get(struct i2o_controller *);
/* device to i2o_device and driver to i2o_driver convertion functions */
/* device / driver conversion functions */
#define to_i2o_driver(drv) container_of(drv,struct i2o_driver, driver)
#define to_i2o_device(dev) container_of(dev, struct i2o_device, device)
/*
* Messenger inlines
*/
static inline u32 I2O_POST_READ32(struct i2o_controller *c)
{
rmb();
return readl(c->post_port);
};
static inline void I2O_POST_WRITE32(struct i2o_controller *c, u32 val)
{
wmb();
writel(val, c->post_port);
};
static inline u32 I2O_REPLY_READ32(struct i2o_controller *c)
{
rmb();
return readl(c->reply_port);
};
static inline void I2O_REPLY_WRITE32(struct i2o_controller *c, u32 val)
{
wmb();
writel(val, c->reply_port);
};
static inline u32 I2O_IRQ_READ32(struct i2o_controller *c)
{
rmb();
return readl(c->irq_mask);
};
static inline void I2O_IRQ_WRITE32(struct i2o_controller *c, u32 val)
{
wmb();
writel(val, c->irq_mask);
wmb();
};
#define to_i2o_controller(dev) container_of(dev, struct i2o_controller, device)
/**
* i2o_msg_get - obtain an I2O message from the IOP
@@ -440,10 +396,12 @@ static inline void I2O_IRQ_WRITE32(struct i2o_controller *c, u32 val)
static inline u32 i2o_msg_get(struct i2o_controller *c,
struct i2o_message __iomem **msg)
{
u32 m;
u32 m = readl(c->in_port);
if ((m = I2O_POST_READ32(c)) != I2O_QUEUE_EMPTY)
if (m != I2O_QUEUE_EMPTY) {
*msg = c->in_queue.virt + m;
rmb();
}
return m;
};
@@ -457,7 +415,8 @@ static inline u32 i2o_msg_get(struct i2o_controller *c,
*/
static inline void i2o_msg_post(struct i2o_controller *c, u32 m)
{
I2O_POST_WRITE32(c, m);
wmb();
writel(m, c->in_port);
};
/**
@@ -486,12 +445,10 @@ static inline int i2o_msg_post_wait(struct i2o_controller *c, u32 m,
* The I2O controller must be informed that the reply message is not needed
* anymore. If you forget to flush the reply, the message frame can't be
* used by the controller anymore and is therefore lost.
*
* FIXME: is there a timeout after which the controller reuse the message?
*/
static inline void i2o_flush_reply(struct i2o_controller *c, u32 m)
{
I2O_REPLY_WRITE32(c, m);
writel(m, c->out_port);
};
/**
@@ -505,8 +462,9 @@ static inline void i2o_flush_reply(struct i2o_controller *c, u32 m)
* work for sender side messages as they are ioremap objects
* provided by the I2O controller.
*/
static inline struct i2o_message *i2o_msg_out_to_virt(struct i2o_controller *c,
u32 m)
static inline struct i2o_message __iomem *i2o_msg_out_to_virt(struct
i2o_controller *c,
u32 m)
{
BUG_ON(m < c->out_queue.phys
|| m >= c->out_queue.phys + c->out_queue.len);
@@ -917,7 +875,7 @@ extern void i2o_debug_state(struct i2o_controller *c);
#define I2OVER15 0x0001
#define I2OVER20 0x0002
/* Default is 1.5, FIXME: Need support for both 1.5 and 2.0 */
/* Default is 1.5 */
#define I2OVERSION I2OVER15
#define SGL_OFFSET_0 I2OVERSION