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path: root/drivers/net/wireless/ath/ath9k/debug.c
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Diffstat (limited to 'drivers/net/wireless/ath/ath9k/debug.c')
-rw-r--r--drivers/net/wireless/ath/ath9k/debug.c68
1 files changed, 47 insertions, 21 deletions
diff --git a/drivers/net/wireless/ath/ath9k/debug.c b/drivers/net/wireless/ath/ath9k/debug.c
index 29898f8d189..54aae931424 100644
--- a/drivers/net/wireless/ath/ath9k/debug.c
+++ b/drivers/net/wireless/ath/ath9k/debug.c
@@ -42,7 +42,7 @@ static ssize_t read_file_debug(struct file *file, char __user *user_buf,
char buf[32];
unsigned int len;
- len = snprintf(buf, sizeof(buf), "0x%08x\n", common->debug_mask);
+ len = sprintf(buf, "0x%08x\n", common->debug_mask);
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}
@@ -57,7 +57,7 @@ static ssize_t write_file_debug(struct file *file, const char __user *user_buf,
len = min(count, sizeof(buf) - 1);
if (copy_from_user(buf, user_buf, len))
- return -EINVAL;
+ return -EFAULT;
buf[len] = '\0';
if (strict_strtoul(buf, 0, &mask))
@@ -86,7 +86,7 @@ static ssize_t read_file_tx_chainmask(struct file *file, char __user *user_buf,
char buf[32];
unsigned int len;
- len = snprintf(buf, sizeof(buf), "0x%08x\n", common->tx_chainmask);
+ len = sprintf(buf, "0x%08x\n", common->tx_chainmask);
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}
@@ -101,7 +101,7 @@ static ssize_t write_file_tx_chainmask(struct file *file, const char __user *use
len = min(count, sizeof(buf) - 1);
if (copy_from_user(buf, user_buf, len))
- return -EINVAL;
+ return -EFAULT;
buf[len] = '\0';
if (strict_strtoul(buf, 0, &mask))
@@ -128,7 +128,7 @@ static ssize_t read_file_rx_chainmask(struct file *file, char __user *user_buf,
char buf[32];
unsigned int len;
- len = snprintf(buf, sizeof(buf), "0x%08x\n", common->rx_chainmask);
+ len = sprintf(buf, "0x%08x\n", common->rx_chainmask);
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}
@@ -143,7 +143,7 @@ static ssize_t write_file_rx_chainmask(struct file *file, const char __user *use
len = min(count, sizeof(buf) - 1);
if (copy_from_user(buf, user_buf, len))
- return -EINVAL;
+ return -EFAULT;
buf[len] = '\0';
if (strict_strtoul(buf, 0, &mask))
@@ -176,7 +176,7 @@ static ssize_t read_file_dma(struct file *file, char __user *user_buf,
buf = kmalloc(DMA_BUF_LEN, GFP_KERNEL);
if (!buf)
- return 0;
+ return -ENOMEM;
ath9k_ps_wakeup(sc);
@@ -248,6 +248,9 @@ static ssize_t read_file_dma(struct file *file, char __user *user_buf,
ath9k_ps_restore(sc);
+ if (len > DMA_BUF_LEN)
+ len = DMA_BUF_LEN;
+
retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
kfree(buf);
return retval;
@@ -269,6 +272,8 @@ void ath_debug_stat_interrupt(struct ath_softc *sc, enum ath9k_int status)
sc->debug.stats.istats.rxlp++;
if (status & ATH9K_INT_RXHP)
sc->debug.stats.istats.rxhp++;
+ if (status & ATH9K_INT_BB_WATCHDOG)
+ sc->debug.stats.istats.bb_watchdog++;
} else {
if (status & ATH9K_INT_RX)
sc->debug.stats.istats.rxok++;
@@ -319,6 +324,9 @@ static ssize_t read_file_interrupt(struct file *file, char __user *user_buf,
"%8s: %10u\n", "RXLP", sc->debug.stats.istats.rxlp);
len += snprintf(buf + len, sizeof(buf) - len,
"%8s: %10u\n", "RXHP", sc->debug.stats.istats.rxhp);
+ len += snprintf(buf + len, sizeof(buf) - len,
+ "%8s: %10u\n", "WATCHDOG",
+ sc->debug.stats.istats.bb_watchdog);
} else {
len += snprintf(buf + len, sizeof(buf) - len,
"%8s: %10u\n", "RX", sc->debug.stats.istats.rxok);
@@ -358,6 +366,9 @@ static ssize_t read_file_interrupt(struct file *file, char __user *user_buf,
len += snprintf(buf + len, sizeof(buf) - len,
"%8s: %10u\n", "TOTAL", sc->debug.stats.istats.total);
+ if (len > sizeof(buf))
+ len = sizeof(buf);
+
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}
@@ -397,11 +408,10 @@ static ssize_t read_file_rcstat(struct file *file, char __user *user_buf,
if (sc->cur_rate_table == NULL)
return 0;
- max = 80 + sc->cur_rate_table->rate_cnt * 1024;
- buf = kmalloc(max + 1, GFP_KERNEL);
+ max = 80 + sc->cur_rate_table->rate_cnt * 1024 + 1;
+ buf = kmalloc(max, GFP_KERNEL);
if (buf == NULL)
- return 0;
- buf[max] = 0;
+ return -ENOMEM;
len += sprintf(buf, "%6s %6s %6s "
"%10s %10s %10s %10s\n",
@@ -443,6 +453,9 @@ static ssize_t read_file_rcstat(struct file *file, char __user *user_buf,
stats->per);
}
+ if (len > max)
+ len = max;
+
retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
kfree(buf);
return retval;
@@ -505,6 +518,9 @@ static ssize_t read_file_wiphy(struct file *file, char __user *user_buf,
len += snprintf(buf + len, sizeof(buf) - len,
"addrmask: %pM\n", addr);
+ if (len > sizeof(buf))
+ len = sizeof(buf);
+
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}
@@ -614,10 +630,10 @@ static const struct file_operations fops_wiphy = {
do { \
len += snprintf(buf + len, size - len, \
"%s%13u%11u%10u%10u\n", str, \
- sc->debug.stats.txstats[sc->tx.hwq_map[ATH9K_WME_AC_BE]].elem, \
- sc->debug.stats.txstats[sc->tx.hwq_map[ATH9K_WME_AC_BK]].elem, \
- sc->debug.stats.txstats[sc->tx.hwq_map[ATH9K_WME_AC_VI]].elem, \
- sc->debug.stats.txstats[sc->tx.hwq_map[ATH9K_WME_AC_VO]].elem); \
+ sc->debug.stats.txstats[sc->tx.hwq_map[WME_AC_BE]].elem, \
+ sc->debug.stats.txstats[sc->tx.hwq_map[WME_AC_BK]].elem, \
+ sc->debug.stats.txstats[sc->tx.hwq_map[WME_AC_VI]].elem, \
+ sc->debug.stats.txstats[sc->tx.hwq_map[WME_AC_VO]].elem); \
} while(0)
static ssize_t read_file_xmit(struct file *file, char __user *user_buf,
@@ -630,7 +646,7 @@ static ssize_t read_file_xmit(struct file *file, char __user *user_buf,
buf = kzalloc(size, GFP_KERNEL);
if (buf == NULL)
- return 0;
+ return -ENOMEM;
len += sprintf(buf, "%30s %10s%10s%10s\n\n", "BE", "BK", "VI", "VO");
@@ -648,6 +664,9 @@ static ssize_t read_file_xmit(struct file *file, char __user *user_buf,
PR("DATA Underrun: ", data_underrun);
PR("DELIM Underrun: ", delim_underrun);
+ if (len > size)
+ len = size;
+
retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
kfree(buf);
@@ -700,7 +719,7 @@ static ssize_t read_file_recv(struct file *file, char __user *user_buf,
buf = kzalloc(size, GFP_KERNEL);
if (buf == NULL)
- return 0;
+ return -ENOMEM;
len += snprintf(buf + len, size - len,
"%18s : %10u\n", "CRC ERR",
@@ -751,6 +770,9 @@ static ssize_t read_file_recv(struct file *file, char __user *user_buf,
PHY_ERR("HT-LENGTH", ATH9K_PHYERR_HT_LENGTH_ILLEGAL);
PHY_ERR("HT-RATE", ATH9K_PHYERR_HT_RATE_ILLEGAL);
+ if (len > size)
+ len = size;
+
retval = simple_read_from_buffer(user_buf, count, ppos, buf, len);
kfree(buf);
@@ -802,7 +824,7 @@ static ssize_t read_file_regidx(struct file *file, char __user *user_buf,
char buf[32];
unsigned int len;
- len = snprintf(buf, sizeof(buf), "0x%08x\n", sc->debug.regidx);
+ len = sprintf(buf, "0x%08x\n", sc->debug.regidx);
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}
@@ -816,7 +838,7 @@ static ssize_t write_file_regidx(struct file *file, const char __user *user_buf,
len = min(count, sizeof(buf) - 1);
if (copy_from_user(buf, user_buf, len))
- return -EINVAL;
+ return -EFAULT;
buf[len] = '\0';
if (strict_strtoul(buf, 0, &regidx))
@@ -843,7 +865,7 @@ static ssize_t read_file_regval(struct file *file, char __user *user_buf,
u32 regval;
regval = REG_READ_D(ah, sc->debug.regidx);
- len = snprintf(buf, sizeof(buf), "0x%08x\n", regval);
+ len = sprintf(buf, "0x%08x\n", regval);
return simple_read_from_buffer(user_buf, count, ppos, buf, len);
}
@@ -858,7 +880,7 @@ static ssize_t write_file_regval(struct file *file, const char __user *user_buf,
len = min(count, sizeof(buf) - 1);
if (copy_from_user(buf, user_buf, len))
- return -EINVAL;
+ return -EFAULT;
buf[len] = '\0';
if (strict_strtoul(buf, 0, &regval))
@@ -934,6 +956,10 @@ int ath9k_init_debug(struct ath_hw *ah)
sc->debug.debugfs_phy, sc, &fops_regval))
goto err;
+ if (!debugfs_create_bool("ignore_extcca", S_IRUSR | S_IWUSR,
+ sc->debug.debugfs_phy, &ah->config.cwm_ignore_extcca))
+ goto err;
+
sc->debug.regidx = 0;
return 0;
err:
generated by cgit v1.2.3-70-g09d2 (git 2.51.2) at 2025-11-04 10:36:49 +0000