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path: root/drivers/net/wireless/iwlwifi/pcie/trans.c
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Diffstat (limited to 'drivers/net/wireless/iwlwifi/pcie/trans.c')
-rw-r--r--drivers/net/wireless/iwlwifi/pcie/trans.c30
1 files changed, 16 insertions, 14 deletions
diff --git a/drivers/net/wireless/iwlwifi/pcie/trans.c b/drivers/net/wireless/iwlwifi/pcie/trans.c
index 939c2f78df5..1e86ea2266d 100644
--- a/drivers/net/wireless/iwlwifi/pcie/trans.c
+++ b/drivers/net/wireless/iwlwifi/pcie/trans.c
@@ -1649,13 +1649,9 @@ static const char *get_fh_string(int cmd)
#undef IWL_CMD
}
-int iwl_dump_fh(struct iwl_trans *trans, char **buf, bool display)
+int iwl_dump_fh(struct iwl_trans *trans, char **buf)
{
int i;
-#ifdef CONFIG_IWLWIFI_DEBUG
- int pos = 0;
- size_t bufsz = 0;
-#endif
static const u32 fh_tbl[] = {
FH_RSCSR_CHNL0_STTS_WPTR_REG,
FH_RSCSR_CHNL0_RBDCB_BASE_REG,
@@ -1667,29 +1663,35 @@ int iwl_dump_fh(struct iwl_trans *trans, char **buf, bool display)
FH_TSSR_TX_STATUS_REG,
FH_TSSR_TX_ERROR_REG
};
-#ifdef CONFIG_IWLWIFI_DEBUG
- if (display) {
- bufsz = ARRAY_SIZE(fh_tbl) * 48 + 40;
+
+#ifdef CONFIG_IWLWIFI_DEBUGFS
+ if (buf) {
+ int pos = 0;
+ size_t bufsz = ARRAY_SIZE(fh_tbl) * 48 + 40;
+
*buf = kmalloc(bufsz, GFP_KERNEL);
if (!*buf)
return -ENOMEM;
+
pos += scnprintf(*buf + pos, bufsz - pos,
"FH register values:\n");
- for (i = 0; i < ARRAY_SIZE(fh_tbl); i++) {
+
+ for (i = 0; i < ARRAY_SIZE(fh_tbl); i++)
pos += scnprintf(*buf + pos, bufsz - pos,
" %34s: 0X%08x\n",
get_fh_string(fh_tbl[i]),
iwl_read_direct32(trans, fh_tbl[i]));
- }
+
return pos;
}
#endif
+
IWL_ERR(trans, "FH register values:\n");
- for (i = 0; i < ARRAY_SIZE(fh_tbl); i++) {
+ for (i = 0; i < ARRAY_SIZE(fh_tbl); i++)
IWL_ERR(trans, " %34s: 0X%08x\n",
get_fh_string(fh_tbl[i]),
iwl_read_direct32(trans, fh_tbl[i]));
- }
+
return 0;
}
@@ -1982,11 +1984,11 @@ static ssize_t iwl_dbgfs_fh_reg_read(struct file *file,
size_t count, loff_t *ppos)
{
struct iwl_trans *trans = file->private_data;
- char *buf;
+ char *buf = NULL;
int pos = 0;
ssize_t ret = -EFAULT;
- ret = pos = iwl_dump_fh(trans, &buf, true);
+ ret = pos = iwl_dump_fh(trans, &buf);
if (buf) {
ret = simple_read_from_buffer(user_buf,
count, ppos, buf, pos);