net/wireless/wext_core.c: Use IW_IOCTL_IDX macro
Joe Perches [Fri, 19 Mar 2010 01:29:35 +0000 (18:29 -0700)]
There's a wireless.h macro for this, might as well use it.

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

net/wireless/wext-core.c

index 5e1656b..dbde22b 100644 (file)
@@ -28,226 +28,226 @@ typedef int (*wext_ioctl_func)(struct net_device *, struct iwreq *,
  * know about.
  */
 static const struct iw_ioctl_description standard_ioctl[] = {
-       [SIOCSIWCOMMIT  - SIOCIWFIRST] = {
+       [IW_IOCTL_IDX(SIOCSIWCOMMIT)] = {
                .header_type    = IW_HEADER_TYPE_NULL,
        },
-       [SIOCGIWNAME    - SIOCIWFIRST] = {
+       [IW_IOCTL_IDX(SIOCGIWNAME)] = {
                .header_type    = IW_HEADER_TYPE_CHAR,
                .flags          = IW_DESCR_FLAG_DUMP,
        },
-       [SIOCSIWNWID    - SIOCIWFIRST] = {
+       [IW_IOCTL_IDX(SIOCSIWNWID)] = {
                .header_type    = IW_HEADER_TYPE_PARAM,
                .flags          = IW_DESCR_FLAG_EVENT,
        },
-       [SIOCGIWNWID    - SIOCIWFIRST] = {
+       [IW_IOCTL_IDX(SIOCGIWNWID)] = {
                .header_type    = IW_HEADER_TYPE_PARAM,
                .flags          = IW_DESCR_FLAG_DUMP,
        },
-       [SIOCSIWFREQ    - SIOCIWFIRST] = {
+       [IW_IOCTL_IDX(SIOCSIWFREQ)] = {
                .header_type    = IW_HEADER_TYPE_FREQ,
                .flags          = IW_DESCR_FLAG_EVENT,
        },
-       [SIOCGIWFREQ    - SIOCIWFIRST] = {
+       [IW_IOCTL_IDX(SIOCGIWFREQ)] = {
                .header_type    = IW_HEADER_TYPE_FREQ,
                .flags          = IW_DESCR_FLAG_DUMP,
        },
-       [SIOCSIWMODE    - SIOCIWFIRST] = {
+       [IW_IOCTL_IDX(SIOCSIWMODE)] = {
                .header_type    = IW_HEADER_TYPE_UINT,
                .flags          = IW_DESCR_FLAG_EVENT,
        },
-       [SIOCGIWMODE    - SIOCIWFIRST] = {
+       [IW_IOCTL_IDX(SIOCGIWMODE)] = {
                .header_type    = IW_HEADER_TYPE_UINT,
                .flags          = IW_DESCR_FLAG_DUMP,
        },
-       [SIOCSIWSENS    - SIOCIWFIRST] = {
+       [IW_IOCTL_IDX(SIOCSIWSENS)] = {
                .header_type    = IW_HEADER_TYPE_PARAM,
        },
-       [SIOCGIWSENS    - SIOCIWFIRST] = {
+       [IW_IOCTL_IDX(SIOCGIWSENS)] = {
                .header_type    = IW_HEADER_TYPE_PARAM,
        },
-       [SIOCSIWRANGE   - SIOCIWFIRST] = {
+       [IW_IOCTL_IDX(SIOCSIWRANGE)] = {
                .header_type    = IW_HEADER_TYPE_NULL,
        },
-       [SIOCGIWRANGE   - SIOCIWFIRST] = {
+       [IW_IOCTL_IDX(SIOCGIWRANGE)] = {
                .header_type    = IW_HEADER_TYPE_POINT,
                .token_size     = 1,
                .max_tokens     = sizeof(struct iw_range),
                .flags          = IW_DESCR_FLAG_DUMP,
        },
-       [SIOCSIWPRIV    - SIOCIWFIRST] = {
+       [IW_IOCTL_IDX(SIOCSIWPRIV)] = {
                .header_type    = IW_HEADER_TYPE_NULL,
        },
-       [SIOCGIWPRIV    - SIOCIWFIRST] = { /* (handled directly by us) */
+       [IW_IOCTL_IDX(SIOCGIWPRIV)] = { /* (handled directly by us) */
                .header_type    = IW_HEADER_TYPE_POINT,
                .token_size     = sizeof(struct iw_priv_args),
                .max_tokens     = 16,
                .flags          = IW_DESCR_FLAG_NOMAX,
        },
-       [SIOCSIWSTATS   - SIOCIWFIRST] = {
+       [IW_IOCTL_IDX(SIOCSIWSTATS)] = {
                .header_type    = IW_HEADER_TYPE_NULL,
        },
-       [SIOCGIWSTATS   - SIOCIWFIRST] = { /* (handled directly by us) */
+       [IW_IOCTL_IDX(SIOCGIWSTATS)] = { /* (handled directly by us) */
                .header_type    = IW_HEADER_TYPE_POINT,
                .token_size     = 1,
                .max_tokens     = sizeof(struct iw_statistics),
                .flags          = IW_DESCR_FLAG_DUMP,
        },
-       [SIOCSIWSPY     - SIOCIWFIRST] = {
+       [IW_IOCTL_IDX(SIOCSIWSPY)] = {
                .header_type    = IW_HEADER_TYPE_POINT,
                .token_size     = sizeof(struct sockaddr),
                .max_tokens     = IW_MAX_SPY,
        },
-       [SIOCGIWSPY     - SIOCIWFIRST] = {
+       [IW_IOCTL_IDX(SIOCGIWSPY)] = {
                .header_type    = IW_HEADER_TYPE_POINT,
                .token_size     = sizeof(struct sockaddr) +
                                  sizeof(struct iw_quality),
                .max_tokens     = IW_MAX_SPY,
        },
-       [SIOCSIWTHRSPY  - SIOCIWFIRST] = {
+       [IW_IOCTL_IDX(SIOCSIWTHRSPY)] = {
                .header_type    = IW_HEADER_TYPE_POINT,
                .token_size     = sizeof(struct iw_thrspy),
                .min_tokens     = 1,
                .max_tokens     = 1,
        },
-       [SIOCGIWTHRSPY  - SIOCIWFIRST] = {
+       [IW_IOCTL_IDX(SIOCGIWTHRSPY)] = {
                .header_type    = IW_HEADER_TYPE_POINT,
                .token_size     = sizeof(struct iw_thrspy),
                .min_tokens     = 1,
                .max_tokens     = 1,
        },
-       [SIOCSIWAP      - SIOCIWFIRST] = {
+       [IW_IOCTL_IDX(SIOCSIWAP)] = {
                .header_type    = IW_HEADER_TYPE_ADDR,
        },
-       [SIOCGIWAP      - SIOCIWFIRST] = {
+       [IW_IOCTL_IDX(SIOCGIWAP)] = {
                .header_type    = IW_HEADER_TYPE_ADDR,
                .flags          = IW_DESCR_FLAG_DUMP,
        },
-       [SIOCSIWMLME    - SIOCIWFIRST] = {
+       [IW_IOCTL_IDX(SIOCSIWMLME)] = {
                .header_type    = IW_HEADER_TYPE_POINT,
                .token_size     = 1,
                .min_tokens     = sizeof(struct iw_mlme),
                .max_tokens     = sizeof(struct iw_mlme),
        },
-       [SIOCGIWAPLIST  - SIOCIWFIRST] = {
+       [IW_IOCTL_IDX(SIOCGIWAPLIST)] = {
                .header_type    = IW_HEADER_TYPE_POINT,
                .token_size     = sizeof(struct sockaddr) +
                                  sizeof(struct iw_quality),
                .max_tokens     = IW_MAX_AP,
                .flags          = IW_DESCR_FLAG_NOMAX,
        },
-       [SIOCSIWSCAN    - SIOCIWFIRST] = {
+       [IW_IOCTL_IDX(SIOCSIWSCAN)] = {
                .header_type    = IW_HEADER_TYPE_POINT,
                .token_size     = 1,
                .min_tokens     = 0,
                .max_tokens     = sizeof(struct iw_scan_req),
        },
-       [SIOCGIWSCAN    - SIOCIWFIRST] = {
+       [IW_IOCTL_IDX(SIOCGIWSCAN)] = {
                .header_type    = IW_HEADER_TYPE_POINT,
                .token_size     = 1,
                .max_tokens     = IW_SCAN_MAX_DATA,
                .flags          = IW_DESCR_FLAG_NOMAX,
        },
-       [SIOCSIWESSID   - SIOCIWFIRST] = {
+       [IW_IOCTL_IDX(SIOCSIWESSID)] = {
                .header_type    = IW_HEADER_TYPE_POINT,
                .token_size     = 1,
                .max_tokens     = IW_ESSID_MAX_SIZE,
                .flags          = IW_DESCR_FLAG_EVENT,
        },
-       [SIOCGIWESSID   - SIOCIWFIRST] = {
+       [IW_IOCTL_IDX(SIOCGIWESSID)] = {
                .header_type    = IW_HEADER_TYPE_POINT,
                .token_size     = 1,
                .max_tokens     = IW_ESSID_MAX_SIZE,
                .flags          = IW_DESCR_FLAG_DUMP,
        },
-       [SIOCSIWNICKN   - SIOCIWFIRST] = {
+       [IW_IOCTL_IDX(SIOCSIWNICKN)] = {
                .header_type    = IW_HEADER_TYPE_POINT,
                .token_size     = 1,
                .max_tokens     = IW_ESSID_MAX_SIZE,
        },
-       [SIOCGIWNICKN   - SIOCIWFIRST] = {
+       [IW_IOCTL_IDX(SIOCGIWNICKN)] = {
                .header_type    = IW_HEADER_TYPE_POINT,
                .token_size     = 1,
                .max_tokens     = IW_ESSID_MAX_SIZE,
        },
-       [SIOCSIWRATE    - SIOCIWFIRST] = {
+       [IW_IOCTL_IDX(SIOCSIWRATE)] = {
                .header_type    = IW_HEADER_TYPE_PARAM,
        },
-       [SIOCGIWRATE    - SIOCIWFIRST] = {
+       [IW_IOCTL_IDX(SIOCGIWRATE)] = {
                .header_type    = IW_HEADER_TYPE_PARAM,
        },
-       [SIOCSIWRTS     - SIOCIWFIRST] = {
+       [IW_IOCTL_IDX(SIOCSIWRTS)] = {
                .header_type    = IW_HEADER_TYPE_PARAM,
        },
-       [SIOCGIWRTS     - SIOCIWFIRST] = {
+       [IW_IOCTL_IDX(SIOCGIWRTS)] = {
                .header_type    = IW_HEADER_TYPE_PARAM,
        },
-       [SIOCSIWFRAG    - SIOCIWFIRST] = {
+       [IW_IOCTL_IDX(SIOCSIWFRAG)] = {
                .header_type    = IW_HEADER_TYPE_PARAM,
        },
-       [SIOCGIWFRAG    - SIOCIWFIRST] = {
+       [IW_IOCTL_IDX(SIOCGIWFRAG)] = {
                .header_type    = IW_HEADER_TYPE_PARAM,
        },
-       [SIOCSIWTXPOW   - SIOCIWFIRST] = {
+       [IW_IOCTL_IDX(SIOCSIWTXPOW)] = {
                .header_type    = IW_HEADER_TYPE_PARAM,
        },
-       [SIOCGIWTXPOW   - SIOCIWFIRST] = {
+       [IW_IOCTL_IDX(SIOCGIWTXPOW)] = {
                .header_type    = IW_HEADER_TYPE_PARAM,
        },
-       [SIOCSIWRETRY   - SIOCIWFIRST] = {
+       [IW_IOCTL_IDX(SIOCSIWRETRY)] = {
                .header_type    = IW_HEADER_TYPE_PARAM,
        },
-       [SIOCGIWRETRY   - SIOCIWFIRST] = {
+       [IW_IOCTL_IDX(SIOCGIWRETRY)] = {
                .header_type    = IW_HEADER_TYPE_PARAM,
        },
-       [SIOCSIWENCODE  - SIOCIWFIRST] = {
+       [IW_IOCTL_IDX(SIOCSIWENCODE)] = {
                .header_type    = IW_HEADER_TYPE_POINT,
                .token_size     = 1,
                .max_tokens     = IW_ENCODING_TOKEN_MAX,
                .flags          = IW_DESCR_FLAG_EVENT | IW_DESCR_FLAG_RESTRICT,
        },
-       [SIOCGIWENCODE  - SIOCIWFIRST] = {
+       [IW_IOCTL_IDX(SIOCGIWENCODE)] = {
                .header_type    = IW_HEADER_TYPE_POINT,
                .token_size     = 1,
                .max_tokens     = IW_ENCODING_TOKEN_MAX,
                .flags          = IW_DESCR_FLAG_DUMP | IW_DESCR_FLAG_RESTRICT,
        },
-       [SIOCSIWPOWER   - SIOCIWFIRST] = {
+       [IW_IOCTL_IDX(SIOCSIWPOWER)] = {
                .header_type    = IW_HEADER_TYPE_PARAM,
        },
-       [SIOCGIWPOWER   - SIOCIWFIRST] = {
+       [IW_IOCTL_IDX(SIOCGIWPOWER)] = {
                .header_type    = IW_HEADER_TYPE_PARAM,
        },
-       [SIOCSIWGENIE   - SIOCIWFIRST] = {
+       [IW_IOCTL_IDX(SIOCSIWGENIE)] = {
                .header_type    = IW_HEADER_TYPE_POINT,
                .token_size     = 1,
                .max_tokens     = IW_GENERIC_IE_MAX,
        },
-       [SIOCGIWGENIE   - SIOCIWFIRST] = {
+       [IW_IOCTL_IDX(SIOCGIWGENIE)] = {
                .header_type    = IW_HEADER_TYPE_POINT,
                .token_size     = 1,
                .max_tokens     = IW_GENERIC_IE_MAX,
        },
-       [SIOCSIWAUTH    - SIOCIWFIRST] = {
+       [IW_IOCTL_IDX(SIOCSIWAUTH)] = {
                .header_type    = IW_HEADER_TYPE_PARAM,
        },
-       [SIOCGIWAUTH    - SIOCIWFIRST] = {
+       [IW_IOCTL_IDX(SIOCGIWAUTH)] = {
                .header_type    = IW_HEADER_TYPE_PARAM,
        },
-       [SIOCSIWENCODEEXT - SIOCIWFIRST] = {
+       [IW_IOCTL_IDX(SIOCSIWENCODEEXT)] = {
                .header_type    = IW_HEADER_TYPE_POINT,
                .token_size     = 1,
                .min_tokens     = sizeof(struct iw_encode_ext),
                .max_tokens     = sizeof(struct iw_encode_ext) +
                                  IW_ENCODING_TOKEN_MAX,
        },
-       [SIOCGIWENCODEEXT - SIOCIWFIRST] = {
+       [IW_IOCTL_IDX(SIOCGIWENCODEEXT)] = {
                .header_type    = IW_HEADER_TYPE_POINT,
                .token_size     = 1,
                .min_tokens     = sizeof(struct iw_encode_ext),
                .max_tokens     = sizeof(struct iw_encode_ext) +
                                  IW_ENCODING_TOKEN_MAX,
        },
-       [SIOCSIWPMKSA - SIOCIWFIRST] = {
+       [IW_IOCTL_IDX(SIOCSIWPMKSA)] = {
                .header_type    = IW_HEADER_TYPE_POINT,
                .token_size     = 1,
                .min_tokens     = sizeof(struct iw_pmksa),
@@ -449,7 +449,7 @@ void wireless_send_event(struct net_device *        dev,
 
        /* Get the description of the Event */
        if (cmd <= SIOCIWLAST) {
-               cmd_index = cmd - SIOCIWFIRST;
+               cmd_index = IW_IOCTL_IDX(cmd);
                if (cmd_index < standard_ioctl_num)
                        descr = &(standard_ioctl[cmd_index]);
        } else {
@@ -662,7 +662,7 @@ static iw_handler get_handler(struct net_device *dev, unsigned int cmd)
                return NULL;
 
        /* Try as a standard command */
-       index = cmd - SIOCIWFIRST;
+       index = IW_IOCTL_IDX(cmd);
        if (index < handlers->num_standard)
                return handlers->standard[index];
 
@@ -954,9 +954,9 @@ static int ioctl_standard_call(struct net_device *  dev,
        int                                     ret = -EINVAL;
 
        /* Get the description of the IOCTL */
-       if ((cmd - SIOCIWFIRST) >= standard_ioctl_num)
+       if (IW_IOCTL_IDX(cmd) >= standard_ioctl_num)
                return -EOPNOTSUPP;
-       descr = &(standard_ioctl[cmd - SIOCIWFIRST]);
+       descr = &(standard_ioctl[IW_IOCTL_IDX(cmd)]);
 
        /* Check if we have a pointer to user space data or not */
        if (descr->header_type != IW_HEADER_TYPE_POINT) {
@@ -1012,7 +1012,7 @@ static int compat_standard_call(struct net_device *dev,
        struct iw_point iwp;
        int err;
 
-       descr = standard_ioctl + (cmd - SIOCIWFIRST);
+       descr = standard_ioctl + IW_IOCTL_IDX(cmd);
 
        if (descr->header_type != IW_HEADER_TYPE_POINT)
                return ioctl_standard_call(dev, iwr, cmd, info, handler);