From e7ece050113dcfab7ea844a643fa1f3c3ac75835 Mon Sep 17 00:00:00 2001 From: Xinming Hu Date: Tue, 1 Aug 2017 01:38:24 +0000 Subject: [PATCH] mwifiex: pcie: compatible with wifi-only image while extract wifi-part fw 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 Signed-off-by: Cathy Luo Reviewed-by: Brian Norris Signed-off-by: Kalle Valo --- 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 3da1eeb730eb..cd314946452c 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, + * 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 (offset + data_len < data_len) { + mwifiex_dbg(adapter, ERROR, "bad FW parse\n"); + ret = -1; + goto done; + } + + /* Image start with cmd1, already wifi-only firmware */ + 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; } - if (offset + data_len < data_len) { - mwifiex_dbg(adapter, ERROR, "bad FW parse\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: