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Date: Mon, 11 May 2020 17:49:27 +0200
From: Jerome Pouiller <Jerome.Pouiller@...abs.com>
To: devel@...verdev.osuosl.org, linux-wireless@...r.kernel.org
Cc: netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Kalle Valo <kvalo@...eaurora.org>,
"David S . Miller" <davem@...emloft.net>,
Jérôme Pouiller
<jerome.pouiller@...abs.com>
Subject: [PATCH 14/17] staging: wfx: fix endianness of the field 'status'
From: Jérôme Pouiller <jerome.pouiller@...abs.com>
The field 'status' appears in most of structs returned by the hardware.
This field is encoded as little endian. Sparse complains this field is
not always correctly accessed:
drivers/staging/wfx/data_rx.c:53:16: warning: restricted __le32 degrades to integer
drivers/staging/wfx/data_rx.c:84:16: warning: restricted __le32 degrades to integer
drivers/staging/wfx/data_tx.c:526:24: warning: restricted __le32 degrades to integer
drivers/staging/wfx/data_tx.c:569:23: warning: restricted __le32 degrades to integer
drivers/staging/wfx/hif_rx.c:128:33: warning: restricted __le32 degrades to integer
drivers/staging/wfx/./traces.h:401:1: warning: restricted __le32 degrades to integer
drivers/staging/wfx/./traces.h:401:1: warning: restricted __le32 degrades to integer
In most of cases, this field is only compared with HIF_STATUS values.
Finally, it is more convenient to solve the problem by defining the
HIF_STATUS values directly in little endian.
It is also the right time to make some clean up in the HIF_STATUS names.
Signed-off-by: Jérôme Pouiller <jerome.pouiller@...abs.com>
---
drivers/staging/wfx/data_rx.c | 4 +--
drivers/staging/wfx/data_tx.c | 4 +--
drivers/staging/wfx/hif_api_cmd.h | 16 ------------
drivers/staging/wfx/hif_api_general.h | 36 ++++++++++++++++-----------
drivers/staging/wfx/hif_rx.c | 2 +-
drivers/staging/wfx/hif_tx.c | 4 +--
drivers/staging/wfx/main.c | 2 +-
drivers/staging/wfx/traces.h | 2 +-
8 files changed, 30 insertions(+), 40 deletions(-)
diff --git a/drivers/staging/wfx/data_rx.c b/drivers/staging/wfx/data_rx.c
index c3b3edae3420..0e959ebc38b5 100644
--- a/drivers/staging/wfx/data_rx.c
+++ b/drivers/staging/wfx/data_rx.c
@@ -49,7 +49,7 @@ static int wfx_drop_encrypt_data(struct wfx_dev *wdev,
}
/* Firmware strips ICV in case of MIC failure. */
- if (arg->status == HIF_STATUS_MICFAILURE)
+ if (arg->status == HIF_STATUS_RX_FAIL_MIC)
icv_len = 0;
if (skb->len < hdrlen + iv_len + icv_len) {
@@ -79,7 +79,7 @@ void wfx_rx_cb(struct wfx_vif *wvif,
ieee80211_is_beacon(frame->frame_control)))
goto drop;
- if (arg->status == HIF_STATUS_MICFAILURE)
+ if (arg->status == HIF_STATUS_RX_FAIL_MIC)
hdr->flag |= RX_FLAG_MMIC_ERROR;
else if (arg->status)
goto drop;
diff --git a/drivers/staging/wfx/data_tx.c b/drivers/staging/wfx/data_tx.c
index 84656d1a6278..a256eed33381 100644
--- a/drivers/staging/wfx/data_tx.c
+++ b/drivers/staging/wfx/data_tx.c
@@ -528,7 +528,7 @@ void wfx_tx_confirm_cb(struct wfx_vif *wvif, const struct hif_cnf_tx *arg)
if (rate->idx < 0)
break;
if (tx_count < rate->count &&
- arg->status == HIF_STATUS_RETRY_EXCEEDED &&
+ arg->status == HIF_STATUS_TX_FAIL_RETRIES &&
arg->ack_failures)
dev_dbg(wvif->wdev->dev,
"all retries were not consumed: %d != %d\n",
@@ -568,7 +568,7 @@ void wfx_tx_confirm_cb(struct wfx_vif *wvif, const struct hif_cnf_tx *arg)
tx_info->flags |= IEEE80211_TX_STAT_NOACK_TRANSMITTED;
else
tx_info->flags |= IEEE80211_TX_STAT_ACK;
- } else if (arg->status == HIF_REQUEUE) {
+ } else if (arg->status == HIF_STATUS_TX_FAIL_REQUEUE) {
WARN(!arg->tx_result_flags.requeue,
"incoherent status and result_flags");
if (tx_info->flags & IEEE80211_TX_CTL_SEND_AFTER_DTIM) {
diff --git a/drivers/staging/wfx/hif_api_cmd.h b/drivers/staging/wfx/hif_api_cmd.h
index bb8c57291f74..d76722bff7ee 100644
--- a/drivers/staging/wfx/hif_api_cmd.h
+++ b/drivers/staging/wfx/hif_api_cmd.h
@@ -66,22 +66,6 @@ union hif_commands_ids {
enum hif_indications_ids indication;
};
-enum hif_status {
- HIF_STATUS_SUCCESS = 0x0,
- HIF_STATUS_FAILURE = 0x1,
- HIF_INVALID_PARAMETER = 0x2,
- HIF_STATUS_WARNING = 0x3,
- HIF_ERROR_UNSUPPORTED_MSG_ID = 0x4,
- HIF_STATUS_DECRYPTFAILURE = 0x10,
- HIF_STATUS_MICFAILURE = 0x11,
- HIF_STATUS_NO_KEY_FOUND = 0x12,
- HIF_STATUS_RETRY_EXCEEDED = 0x13,
- HIF_STATUS_TX_LIFETIME_EXCEEDED = 0x14,
- HIF_REQUEUE = 0x15,
- HIF_STATUS_REFUSED = 0x16,
- HIF_STATUS_BUSY = 0x17
-};
-
struct hif_reset_flags {
u8 reset_stat:1;
u8 reset_all_int:1;
diff --git a/drivers/staging/wfx/hif_api_general.h b/drivers/staging/wfx/hif_api_general.h
index a359ae76511a..2b0cdfdd46d3 100644
--- a/drivers/staging/wfx/hif_api_general.h
+++ b/drivers/staging/wfx/hif_api_general.h
@@ -70,21 +70,27 @@ enum hif_general_indications_ids {
HIF_IND_ID_SL_EXCHANGE_PUB_KEYS = 0xe5
};
-enum hif_hi_status {
- HI_STATUS_SUCCESS = 0x0000,
- HI_STATUS_FAILURE = 0x0001,
- HI_INVALID_PARAMETER = 0x0002,
- HI_STATUS_GPIO_WARNING = 0x0003,
- HI_ERROR_UNSUPPORTED_MSG_ID = 0x0004,
- SL_MAC_KEY_STATUS_SUCCESS = 0x005A,
- SL_MAC_KEY_STATUS_FAILED_KEY_ALREADY_BURNED = 0x006B,
- SL_MAC_KEY_STATUS_FAILED_RAM_MODE_NOT_ALLOWED = 0x007C,
- SL_MAC_KEY_STATUS_FAILED_UNKNOWN_MODE = 0x008D,
- SL_PUB_KEY_EXCHANGE_STATUS_SUCCESS = 0x009E,
- SL_PUB_KEY_EXCHANGE_STATUS_FAILED = 0x00AF,
- PREVENT_ROLLBACK_CNF_SUCCESS = 0x1234,
- PREVENT_ROLLBACK_CNF_WRONG_MAGIC_WORD = 0x1256
-};
+#define HIF_STATUS_SUCCESS (cpu_to_le32(0x0000))
+#define HIF_STATUS_FAIL (cpu_to_le32(0x0001))
+#define HIF_STATUS_INVALID_PARAMETER (cpu_to_le32(0x0002))
+#define HIF_STATUS_WARNING (cpu_to_le32(0x0003))
+#define HIF_STATUS_UNKNOWN_REQUEST (cpu_to_le32(0x0004))
+#define HIF_STATUS_RX_FAIL_DECRYPT (cpu_to_le32(0x0010))
+#define HIF_STATUS_RX_FAIL_MIC (cpu_to_le32(0x0011))
+#define HIF_STATUS_RX_FAIL_NO_KEY (cpu_to_le32(0x0012))
+#define HIF_STATUS_TX_FAIL_RETRIES (cpu_to_le32(0x0013))
+#define HIF_STATUS_TX_FAIL_TIMEOUT (cpu_to_le32(0x0014))
+#define HIF_STATUS_TX_FAIL_REQUEUE (cpu_to_le32(0x0015))
+#define HIF_STATUS_REFUSED (cpu_to_le32(0x0016))
+#define HIF_STATUS_BUSY (cpu_to_le32(0x0017))
+#define HIF_STATUS_SLK_SET_KEY_SUCCESS (cpu_to_le32(0x005A))
+#define HIF_STATUS_SLK_SET_KEY_ALREADY_BURNED (cpu_to_le32(0x006B))
+#define HIF_STATUS_SLK_SET_KEY_DISALLOWED_MODE (cpu_to_le32(0x007C))
+#define HIF_STATUS_SLK_SET_KEY_UNKNOWN_MODE (cpu_to_le32(0x008D))
+#define HIF_STATUS_SLK_NEGO_SUCCESS (cpu_to_le32(0x009E))
+#define HIF_STATUS_SLK_NEGO_FAILED (cpu_to_le32(0x00AF))
+#define HIF_STATUS_ROLLBACK_SUCCESS (cpu_to_le32(0x1234))
+#define HIF_STATUS_ROLLBACK_FAIL (cpu_to_le32(0x1256))
enum hif_api_rate_index {
API_RATE_INDEX_B_1MBPS = 0,
diff --git a/drivers/staging/wfx/hif_rx.c b/drivers/staging/wfx/hif_rx.c
index 9b4f0c4ba745..9d4ba765f809 100644
--- a/drivers/staging/wfx/hif_rx.c
+++ b/drivers/staging/wfx/hif_rx.c
@@ -127,7 +127,7 @@ static int hif_keys_indication(struct wfx_dev *wdev,
u8 pubkey[API_NCP_PUB_KEY_SIZE];
// SL_PUB_KEY_EXCHANGE_STATUS_SUCCESS is used by legacy secure link
- if (body->status && body->status != SL_PUB_KEY_EXCHANGE_STATUS_SUCCESS)
+ if (body->status && body->status != HIF_STATUS_SLK_NEGO_SUCCESS)
dev_warn(wdev->dev, "secure link negociation error\n");
memcpy(pubkey, body->ncp_pub_key, sizeof(pubkey));
memreverse(pubkey, sizeof(pubkey));
diff --git a/drivers/staging/wfx/hif_tx.c b/drivers/staging/wfx/hif_tx.c
index 6c6618197b91..e653ebbe5067 100644
--- a/drivers/staging/wfx/hif_tx.c
+++ b/drivers/staging/wfx/hif_tx.c
@@ -511,7 +511,7 @@ int hif_sl_send_pub_keys(struct wfx_dev *wdev,
ret = wfx_cmd_send(wdev, hif, NULL, 0, false);
kfree(hif);
// Compatibility with legacy secure link
- if (ret == SL_PUB_KEY_EXCHANGE_STATUS_SUCCESS)
+ if (ret == le32_to_cpu(HIF_STATUS_SLK_NEGO_SUCCESS))
ret = 0;
return ret;
}
@@ -542,7 +542,7 @@ int hif_sl_set_mac_key(struct wfx_dev *wdev, const u8 *slk_key, int destination)
ret = wfx_cmd_send(wdev, hif, NULL, 0, false);
kfree(hif);
// Compatibility with legacy secure link
- if (ret == SL_MAC_KEY_STATUS_SUCCESS)
+ if (ret == le32_to_cpu(HIF_STATUS_SLK_SET_KEY_SUCCESS))
ret = 0;
return ret;
}
diff --git a/drivers/staging/wfx/main.c b/drivers/staging/wfx/main.c
index 25d70ebe9933..d4e69c663f5a 100644
--- a/drivers/staging/wfx/main.c
+++ b/drivers/staging/wfx/main.c
@@ -229,7 +229,7 @@ int wfx_send_pds(struct wfx_dev *wdev, u8 *buf, size_t len)
buf[i] = '}';
ret = hif_configuration(wdev, buf + start,
i - start + 1);
- if (ret == HIF_STATUS_FAILURE) {
+ if (ret > 0) {
dev_err(wdev->dev, "PDS bytes %d to %d: invalid data (unsupported options?)\n", start, i);
return -EINVAL;
}
diff --git a/drivers/staging/wfx/traces.h b/drivers/staging/wfx/traces.h
index 959a0d31bf4e..48bfd9695b26 100644
--- a/drivers/staging/wfx/traces.h
+++ b/drivers/staging/wfx/traces.h
@@ -414,7 +414,7 @@ TRACE_EVENT(tx_stats,
__entry->flags |= 0x10;
if (tx_cnf->status)
__entry->flags |= 0x20;
- if (tx_cnf->status == HIF_REQUEUE)
+ if (tx_cnf->status == HIF_STATUS_TX_FAIL_REQUEUE)
__entry->flags |= 0x40;
),
TP_printk("packet ID: %08x, rate policy: %s %d|%d %d|%d %d|%d %d|%d -> %d attempt, Delays media/queue/total: %4dus/%4dus/%4dus",
--
2.26.2
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