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Message-ID: <CAA=Fs0n5xt5CtkyVcissVfJpP4_QBpCSUStUy=pT1DwXmsyMMg@mail.gmail.com>
Date: Mon, 13 Sep 2021 18:40:18 +0100
From: Phillip Potter <phil@...lpotter.co.uk>
To: Saurav Girepunje <saurav.girepunje@...il.com>
Cc: Larry Finger <Larry.Finger@...inger.net>,
Martin Kaiser <martin@...ser.cx>,
Greg KH <gregkh@...uxfoundation.org>,
Michael Straube <straube.linux@...il.com>,
"open list:STAGING SUBSYSTEM" <linux-staging@...ts.linux.dev>,
Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
saurav.girepunje@...mail.com
Subject: Re: [PATCH] staging: r8188eu: os_dep: remove unused function rtw_android_priv_cmd
On Mon, 13 Sept 2021 at 17:24, Greg KH <gregkh@...uxfoundation.org> wrote:
>
> On Sun, Sep 12, 2021 at 10:46:12PM +0530, Saurav Girepunje wrote:
> > Remove unused function rtw_android_priv_cmd.
> >
> > Signed-off-by: Saurav Girepunje <saurav.girepunje@...il.com>
> > ---
> > drivers/staging/r8188eu/include/rtw_android.h | 1 -
> > drivers/staging/r8188eu/os_dep/rtw_android.c | 138 ------------------
> > 2 files changed, 139 deletions(-)
> >
> > diff --git a/drivers/staging/r8188eu/include/rtw_android.h b/drivers/staging/r8188eu/include/rtw_android.h
> > index f60cf1c82984..86e3ac5f7955 100644
> > --- a/drivers/staging/r8188eu/include/rtw_android.h
> > +++ b/drivers/staging/r8188eu/include/rtw_android.h
> > @@ -42,6 +42,5 @@ enum ANDROID_WIFI_CMD {
> > };
> >
> > int rtw_android_cmdstr_to_num(char *cmdstr);
> > -int rtw_android_priv_cmd(struct net_device *net, struct ifreq *ifr, int cmd);
> >
> > #endif /* __RTW_ANDROID_H__ */
> > diff --git a/drivers/staging/r8188eu/os_dep/rtw_android.c b/drivers/staging/r8188eu/os_dep/rtw_android.c
> > index 010d529c8982..bd76177d60f9 100644
> > --- a/drivers/staging/r8188eu/os_dep/rtw_android.c
> > +++ b/drivers/staging/r8188eu/os_dep/rtw_android.c
> > @@ -133,141 +133,3 @@ static int rtw_android_set_block(struct net_device *net, char *command,
> > return 0;
> > }
> >
> > -int rtw_android_priv_cmd(struct net_device *net, struct ifreq *ifr, int cmd)
> > -{
> > - int ret = 0;
> > - char *command = NULL;
> > - int cmd_num;
> > - int bytes_written = 0;
> > - struct android_wifi_priv_cmd priv_cmd;
> > -
> > - if (!ifr->ifr_data) {
> > - ret = -EINVAL;
> > - goto exit;
> > - }
> > - if (copy_from_user(&priv_cmd, ifr->ifr_data,
> > - sizeof(struct android_wifi_priv_cmd))) {
> > - ret = -EFAULT;
> > - goto exit;
> > - }
> > - command = kmalloc(priv_cmd.total_len, GFP_KERNEL);
> > - if (!command) {
> > - DBG_88E("%s: failed to allocate memory\n", __func__);
> > - ret = -ENOMEM;
> > - goto exit;
> > - }
> > - if (!access_ok(priv_cmd.buf, priv_cmd.total_len)) {
> > - DBG_88E("%s: failed to access memory\n", __func__);
> > - ret = -EFAULT;
> > - goto exit;
> > - }
> > - if (copy_from_user(command, (char __user *)priv_cmd.buf,
> > - priv_cmd.total_len)) {
> > - ret = -EFAULT;
> > - goto exit;
> > - }
> > - DBG_88E("%s: Android private cmd \"%s\" on %s\n",
> > - __func__, command, ifr->ifr_name);
> > - cmd_num = rtw_android_cmdstr_to_num(command);
> > - switch (cmd_num) {
> > - case ANDROID_WIFI_CMD_START:
> > - goto response;
> > - case ANDROID_WIFI_CMD_SETFWPATH:
> > - goto response;
> > - }
> > - if (!g_wifi_on) {
> > - DBG_88E("%s: Ignore private cmd \"%s\" - iface %s is down\n",
> > - __func__, command, ifr->ifr_name);
> > - ret = 0;
> > - goto exit;
> > - }
> > - switch (cmd_num) {
> > - case ANDROID_WIFI_CMD_STOP:
> > - break;
> > - case ANDROID_WIFI_CMD_SCAN_ACTIVE:
> > - break;
> > - case ANDROID_WIFI_CMD_SCAN_PASSIVE:
> > - break;
> > - case ANDROID_WIFI_CMD_RSSI:
> > - bytes_written = rtw_android_get_rssi(net, command,
> > - priv_cmd.total_len);
> > - break;
> > - case ANDROID_WIFI_CMD_LINKSPEED:
> > - bytes_written = rtw_android_get_link_speed(net, command,
> > - priv_cmd.total_len);
> > - break;
> > - case ANDROID_WIFI_CMD_MACADDR:
> > - bytes_written = rtw_android_get_macaddr(net, command,
> > - priv_cmd.total_len);
> > - break;
> > - case ANDROID_WIFI_CMD_BLOCK:
> > - bytes_written = rtw_android_set_block(net, command,
> > - priv_cmd.total_len);
> > - break;
> > - case ANDROID_WIFI_CMD_RXFILTER_START:
> > - break;
> > - case ANDROID_WIFI_CMD_RXFILTER_STOP:
> > - break;
> > - case ANDROID_WIFI_CMD_RXFILTER_ADD:
> > - break;
> > - case ANDROID_WIFI_CMD_RXFILTER_REMOVE:
> > - break;
> > - case ANDROID_WIFI_CMD_BTCOEXSCAN_START:
> > - /* TBD: BTCOEXSCAN-START */
> > - break;
> > - case ANDROID_WIFI_CMD_BTCOEXSCAN_STOP:
> > - /* TBD: BTCOEXSCAN-STOP */
> > - break;
> > - case ANDROID_WIFI_CMD_BTCOEXMODE:
> > - break;
> > - case ANDROID_WIFI_CMD_SETSUSPENDOPT:
> > - break;
> > - case ANDROID_WIFI_CMD_SETBAND:
> > - break;
> > - case ANDROID_WIFI_CMD_GETBAND:
> > - break;
> > - case ANDROID_WIFI_CMD_COUNTRY:
> > - bytes_written = android_set_cntry(net, command,
> > - priv_cmd.total_len);
> > - break;
> > - case ANDROID_WIFI_CMD_P2P_DEV_ADDR:
> > - bytes_written = android_get_p2p_addr(net, command,
> > - priv_cmd.total_len);
> > - break;
> > - case ANDROID_WIFI_CMD_P2P_SET_NOA:
> > - break;
> > - case ANDROID_WIFI_CMD_P2P_GET_NOA:
> > - break;
> > - case ANDROID_WIFI_CMD_P2P_SET_PS:
> > - break;
> > - default:
> > - DBG_88E("Unknown PRIVATE command %s - ignored\n", command);
> > - snprintf(command, 3, "OK");
> > - bytes_written = strlen("OK");
> > - }
> > -
> > -response:
> > - if (bytes_written >= 0) {
> > - if ((bytes_written == 0) && (priv_cmd.total_len > 0))
> > - command[0] = '\0';
> > - if (bytes_written >= priv_cmd.total_len) {
> > - DBG_88E("%s: bytes_written = %d\n", __func__,
> > - bytes_written);
> > - bytes_written = priv_cmd.total_len;
> > - } else {
> > - bytes_written++;
> > - }
> > - priv_cmd.used_len = bytes_written;
> > - if (copy_to_user((char __user *)priv_cmd.buf, command,
> > - bytes_written)) {
> > - DBG_88E("%s: failed to copy data to user buffer\n",
> > - __func__);
> > - ret = -EFAULT;
> > - }
> > - } else {
> > - ret = bytes_written;
> > - }
> > -exit:
> > - kfree(command);
> > - return ret;
> > -}
> > --
> > 2.32.0
> >
> >
>
> Does not apply to my tree :(
Dear Saurav,
This code is already gone - Linus deleted it during a merge
conflict resolution. I am planning to add it back soon though
and reconnect with the newer siocdevprivate approach.
Regards,
Phil
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