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sizeof(*cmd) is going to give the total size of the data structure that we allocated, more often than not. But the size of the command to be _sent_ could be a lot smaller, as it is in the KEY_MATERIAL and SUBSCRIBE_EVENT commands for example. So swap them round; let the caller set the _command_ size explicitly in the header, and infer the maximum response size from the data structure. Signed-off-by: David Woodhouse <dwmw2@infradead.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
62 lines
2.4 KiB
C
62 lines
2.4 KiB
C
/* Copyright (C) 2007, Red Hat, Inc. */
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#ifndef _LBS_CMD_H_
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#define _LBS_CMD_H_
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#include "hostcmd.h"
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#include "dev.h"
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/* lbs_cmd() infers the size of the buffer to copy data back into, from
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the size of the target of the pointer. Since the command to be sent
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may often be smaller, that size is set in cmd->size by the caller.*/
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#define lbs_cmd(priv, cmdnr, cmd, cb, cb_arg) ({ \
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uint16_t __sz = le16_to_cpu((cmd)->hdr.size); \
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(cmd)->hdr.size = cpu_to_le16(sizeof(*(cmd))); \
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__lbs_cmd(priv, cmdnr, &(cmd)->hdr, __sz, cb, cb_arg); \
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})
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#define lbs_cmd_with_response(priv, cmdnr, cmd) \
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lbs_cmd(priv, cmdnr, cmd, lbs_cmd_copyback, (unsigned long) (cmd))
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/* __lbs_cmd() will free the cmdnode and return success/failure.
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__lbs_cmd_async() requires that the callback free the cmdnode */
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struct cmd_ctrl_node *__lbs_cmd_async(struct lbs_private *priv, uint16_t command,
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struct cmd_header *in_cmd, int in_cmd_size,
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int (*callback)(struct lbs_private *, unsigned long, struct cmd_header *),
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unsigned long callback_arg);
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int __lbs_cmd(struct lbs_private *priv, uint16_t command,
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struct cmd_header *in_cmd, int in_cmd_size,
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int (*callback)(struct lbs_private *, unsigned long, struct cmd_header *),
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unsigned long callback_arg);
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int lbs_cmd_copyback(struct lbs_private *priv, unsigned long extra,
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struct cmd_header *resp);
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int lbs_update_hw_spec(struct lbs_private *priv);
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int lbs_mesh_access(struct lbs_private *priv, uint16_t cmd_action,
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struct cmd_ds_mesh_access *cmd);
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int lbs_get_data_rate(struct lbs_private *priv);
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int lbs_set_data_rate(struct lbs_private *priv, u8 rate);
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int lbs_get_channel(struct lbs_private *priv);
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int lbs_set_channel(struct lbs_private *priv, u8 channel);
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int lbs_mesh_config(struct lbs_private *priv, uint16_t enable, uint16_t chan);
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int lbs_host_sleep_cfg(struct lbs_private *priv, uint32_t criteria);
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int lbs_suspend(struct lbs_private *priv);
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int lbs_resume(struct lbs_private *priv);
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int lbs_cmd_802_11_inactivity_timeout(struct lbs_private *priv,
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uint16_t cmd_action, uint16_t *timeout);
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int lbs_cmd_802_11_sleep_params(struct lbs_private *priv, uint16_t cmd_action,
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struct sleep_params *sp);
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int lbs_cmd_802_11_set_wep(struct lbs_private *priv, uint16_t cmd_action,
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struct assoc_request *assoc);
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int lbs_cmd_802_11_enable_rsn(struct lbs_private *priv, uint16_t cmd_action,
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uint16_t *enable);
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#endif /* _LBS_CMD_H */
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