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path: root/drivers/net/wireless/b43/debugfs.c
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Diffstat (limited to 'drivers/net/wireless/b43/debugfs.c')
-rw-r--r--drivers/net/wireless/b43/debugfs.c67
1 files changed, 20 insertions, 47 deletions
diff --git a/drivers/net/wireless/b43/debugfs.c b/drivers/net/wireless/b43/debugfs.c
index 45e3d6af69f..8f64943e3f6 100644
--- a/drivers/net/wireless/b43/debugfs.c
+++ b/drivers/net/wireless/b43/debugfs.c
@@ -46,8 +46,6 @@ struct b43_debugfs_fops {
struct file_operations fops;
/* Offset of struct b43_dfs_file in struct b43_dfsentry */
size_t file_struct_offset;
- /* Take wl->irq_lock before calling read/write? */
- bool take_irqlock;
};
static inline
@@ -127,7 +125,6 @@ static int shm16write__write_file(struct b43_wldev *dev,
unsigned int routing, addr, mask, set;
u16 val;
int res;
- unsigned long flags;
res = sscanf(buf, "0x%X 0x%X 0x%X 0x%X",
&routing, &addr, &mask, &set);
@@ -144,15 +141,13 @@ static int shm16write__write_file(struct b43_wldev *dev,
if ((mask > 0xFFFF) || (set > 0xFFFF))
return -E2BIG;
- spin_lock_irqsave(&dev->wl->shm_lock, flags);
if (mask == 0)
val = 0;
else
- val = __b43_shm_read16(dev, routing, addr);
+ val = b43_shm_read16(dev, routing, addr);
val &= mask;
val |= set;
- __b43_shm_write16(dev, routing, addr, val);
- spin_unlock_irqrestore(&dev->wl->shm_lock, flags);
+ b43_shm_write16(dev, routing, addr, val);
return 0;
}
@@ -206,7 +201,6 @@ static int shm32write__write_file(struct b43_wldev *dev,
unsigned int routing, addr, mask, set;
u32 val;
int res;
- unsigned long flags;
res = sscanf(buf, "0x%X 0x%X 0x%X 0x%X",
&routing, &addr, &mask, &set);
@@ -223,15 +217,13 @@ static int shm32write__write_file(struct b43_wldev *dev,
if ((mask > 0xFFFFFFFF) || (set > 0xFFFFFFFF))
return -E2BIG;
- spin_lock_irqsave(&dev->wl->shm_lock, flags);
if (mask == 0)
val = 0;
else
- val = __b43_shm_read32(dev, routing, addr);
+ val = b43_shm_read32(dev, routing, addr);
val &= mask;
val |= set;
- __b43_shm_write32(dev, routing, addr, val);
- spin_unlock_irqrestore(&dev->wl->shm_lock, flags);
+ b43_shm_write32(dev, routing, addr, val);
return 0;
}
@@ -372,14 +364,12 @@ static ssize_t txstat_read_file(struct b43_wldev *dev,
{
struct b43_txstatus_log *log = &dev->dfsentry->txstatlog;
ssize_t count = 0;
- unsigned long flags;
int i, idx;
struct b43_txstatus *stat;
- spin_lock_irqsave(&log->lock, flags);
if (log->end < 0) {
fappend("Nothing transmitted, yet\n");
- goto out_unlock;
+ goto out;
}
fappend("b43 TX status reports:\n\n"
"index | cookie | seq | phy_stat | frame_count | "
@@ -409,13 +399,11 @@ static ssize_t txstat_read_file(struct b43_wldev *dev,
break;
i++;
}
-out_unlock:
- spin_unlock_irqrestore(&log->lock, flags);
+out:
return count;
}
-/* wl->irq_lock is locked */
static int restart_write_file(struct b43_wldev *dev,
const char *buf, size_t count)
{
@@ -556,12 +544,7 @@ static ssize_t b43_debugfs_read(struct file *file, char __user *userbuf,
goto out_unlock;
}
memset(buf, 0, bufsize);
- if (dfops->take_irqlock) {
- spin_lock_irq(&dev->wl->irq_lock);
- ret = dfops->read(dev, buf, bufsize);
- spin_unlock_irq(&dev->wl->irq_lock);
- } else
- ret = dfops->read(dev, buf, bufsize);
+ ret = dfops->read(dev, buf, bufsize);
if (ret <= 0) {
free_pages((unsigned long)buf, buforder);
err = ret;
@@ -623,12 +606,7 @@ static ssize_t b43_debugfs_write(struct file *file,
err = -EFAULT;
goto out_freepage;
}
- if (dfops->take_irqlock) {
- spin_lock_irq(&dev->wl->irq_lock);
- err = dfops->write(dev, buf, count);
- spin_unlock_irq(&dev->wl->irq_lock);
- } else
- err = dfops->write(dev, buf, count);
+ err = dfops->write(dev, buf, count);
if (err)
goto out_freepage;
@@ -641,7 +619,7 @@ out_unlock:
}
-#define B43_DEBUGFS_FOPS(name, _read, _write, _take_irqlock) \
+#define B43_DEBUGFS_FOPS(name, _read, _write) \
static struct b43_debugfs_fops fops_##name = { \
.read = _read, \
.write = _write, \
@@ -652,20 +630,19 @@ out_unlock:
}, \
.file_struct_offset = offsetof(struct b43_dfsentry, \
file_##name), \
- .take_irqlock = _take_irqlock, \
}
-B43_DEBUGFS_FOPS(shm16read, shm16read__read_file, shm16read__write_file, 1);
-B43_DEBUGFS_FOPS(shm16write, NULL, shm16write__write_file, 1);
-B43_DEBUGFS_FOPS(shm32read, shm32read__read_file, shm32read__write_file, 1);
-B43_DEBUGFS_FOPS(shm32write, NULL, shm32write__write_file, 1);
-B43_DEBUGFS_FOPS(mmio16read, mmio16read__read_file, mmio16read__write_file, 1);
-B43_DEBUGFS_FOPS(mmio16write, NULL, mmio16write__write_file, 1);
-B43_DEBUGFS_FOPS(mmio32read, mmio32read__read_file, mmio32read__write_file, 1);
-B43_DEBUGFS_FOPS(mmio32write, NULL, mmio32write__write_file, 1);
-B43_DEBUGFS_FOPS(txstat, txstat_read_file, NULL, 0);
-B43_DEBUGFS_FOPS(restart, NULL, restart_write_file, 1);
-B43_DEBUGFS_FOPS(loctls, loctls_read_file, NULL, 0);
+B43_DEBUGFS_FOPS(shm16read, shm16read__read_file, shm16read__write_file);
+B43_DEBUGFS_FOPS(shm16write, NULL, shm16write__write_file);
+B43_DEBUGFS_FOPS(shm32read, shm32read__read_file, shm32read__write_file);
+B43_DEBUGFS_FOPS(shm32write, NULL, shm32write__write_file);
+B43_DEBUGFS_FOPS(mmio16read, mmio16read__read_file, mmio16read__write_file);
+B43_DEBUGFS_FOPS(mmio16write, NULL, mmio16write__write_file);
+B43_DEBUGFS_FOPS(mmio32read, mmio32read__read_file, mmio32read__write_file);
+B43_DEBUGFS_FOPS(mmio32write, NULL, mmio32write__write_file);
+B43_DEBUGFS_FOPS(txstat, txstat_read_file, NULL);
+B43_DEBUGFS_FOPS(restart, NULL, restart_write_file);
+B43_DEBUGFS_FOPS(loctls, loctls_read_file, NULL);
bool b43_debug(struct b43_wldev *dev, enum b43_dyndbg feature)
@@ -738,7 +715,6 @@ void b43_debugfs_add_device(struct b43_wldev *dev)
return;
}
log->end = -1;
- spin_lock_init(&log->lock);
dev->dfsentry = e;
@@ -822,7 +798,6 @@ void b43_debugfs_remove_device(struct b43_wldev *dev)
kfree(e);
}
-/* Called with IRQs disabled. */
void b43_debugfs_log_txstat(struct b43_wldev *dev,
const struct b43_txstatus *status)
{
@@ -834,14 +809,12 @@ void b43_debugfs_log_txstat(struct b43_wldev *dev,
if (!e)
return;
log = &e->txstatlog;
- spin_lock(&log->lock); /* IRQs are already disabled. */
i = log->end + 1;
if (i == B43_NR_LOGGED_TXSTATUS)
i = 0;
log->end = i;
cur = &(log->log[i]);
memcpy(cur, status, sizeof(*cur));
- spin_unlock(&log->lock);
}
void b43_debugfs_init(void)
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-06 03:40:08 +0000