Hi Brian,
Thanks for the review, fix below comment format in V2.
Regards,
Simon
________________________________________
From: Brian Norris <briannor...@chromium.org>
Sent: Tuesday, August 1, 2017 0:58
To: Xinming Hu
Cc: Linux Wireless; Kalle Valo; Dmitry Torokhov; raja...@google.com; Zhiyuan
Yang; Tim Song; Cathy Luo; Ganapathi Bhat; Xinming Hu
Subject: [EXT] Re: [PATCH 2/2] mwifiex: pcie: compatible with wifi-only image
while extract wifi-part fw
External Email
----------------------------------------------------------------------
Hi,
Two nitpicks below:
On Mon, Jul 31, 2017 at 01:07:27PM +0000, Xinming Hu wrote:
> From: Xinming Hu <h...@marvell.com>
>
> Sometimes, we might using wifi-only firmware with a combo firmware name,
> in this case, do not need to filter bluetooth part from header.
>
> Signed-off-by: Xinming Hu <h...@marvell.com>
> Signed-off-by: Cathy Luo <c...@marvell.com>
> ---
> drivers/net/wireless/marvell/mwifiex/pcie.c | 26 +++++++++++++++++++-------
> 1 file changed, 19 insertions(+), 7 deletions(-)
>
> diff --git a/drivers/net/wireless/marvell/mwifiex/pcie.c
> b/drivers/net/wireless/marvell/mwifiex/pcie.c
> index 3da1eeb..dc4e054 100644
> --- a/drivers/net/wireless/marvell/mwifiex/pcie.c
> +++ b/drivers/net/wireless/marvell/mwifiex/pcie.c
> @@ -1985,7 +1985,8 @@ static int mwifiex_pcie_event_complete(struct
> mwifiex_adapter *adapter,
> * (3) wifi image.
> *
> * This function bypass the header and bluetooth part, return
> - * the offset of tail wifi-only part.
> + * the offset of tail wifi-only part. if the image is already wifi-only,
Sentences start with capital letters (i.e., "If the image ...").
> + * that is start with CMD1, return 0.
> */
>
> static int mwifiex_extract_wifi_fw(struct mwifiex_adapter *adapter,
> @@ -1993,7 +1994,7 @@ static int mwifiex_extract_wifi_fw(struct
> mwifiex_adapter *adapter,
> const struct mwifiex_fw_data *fwdata;
> u32 offset = 0, data_len, dnld_cmd;
> int ret = 0;
> - bool cmd7_before = false;
> + bool cmd7_before = false, first_cmd = false;
>
> while (1) {
> /* Check for integer and buffer overflow */
> @@ -2014,20 +2015,29 @@ static int mwifiex_extract_wifi_fw(struct
> mwifiex_adapter *adapter,
>
> switch (dnld_cmd) {
> case MWIFIEX_FW_DNLD_CMD_1:
> - if (!cmd7_before) {
> - mwifiex_dbg(adapter, ERROR,
> - "no cmd7 before cmd1!\n");
> + if (offset + data_len < data_len) {
> + mwifiex_dbg(adapter, ERROR, "bad FW parse\n");
> ret = -1;
> goto done;
> }
> - if (offset + data_len < data_len) {
> - mwifiex_dbg(adapter, ERROR, "bad FW parse\n");
> +
> + /* Image start with cmd1, already wifi-only firmware*/
You need a space before closing the comment. i.e.:
/* Image starts with cmd1; already wifi-only firmware */
Otherwise, I think both of these look fine:
Reviewed-by: Brian Norris <briannor...@chromium.org>
> + if (!first_cmd) {
> + mwifiex_dbg(adapter, MSG,
> + "input wifi-only firmware\n");
> + return 0;
> + }
> +
> + if (!cmd7_before) {
> + mwifiex_dbg(adapter, ERROR,
> + "no cmd7 before cmd1!\n");
> ret = -1;
> goto done;
> }
> offset += data_len;
> break;
> case MWIFIEX_FW_DNLD_CMD_5:
> + first_cmd = true;
> /* Check for integer overflow */
> if (offset + data_len < data_len) {
> mwifiex_dbg(adapter, ERROR, "bad FW parse\n");
> @@ -2037,6 +2047,7 @@ static int mwifiex_extract_wifi_fw(struct
> mwifiex_adapter *adapter,
> offset += data_len;
> break;
> case MWIFIEX_FW_DNLD_CMD_6:
> + first_cmd = true;
> /* Check for integer overflow */
> if (offset + data_len < data_len) {
> mwifiex_dbg(adapter, ERROR, "bad FW parse\n");
> @@ -2053,6 +2064,7 @@ static int mwifiex_extract_wifi_fw(struct
> mwifiex_adapter *adapter,
> }
> goto done;
> case MWIFIEX_FW_DNLD_CMD_7:
> + first_cmd = true;
> cmd7_before = true;
> break;
> default:
> --
> 1.9.1
>
