On Tue, Apr 11, 2017 at 10:11:43PM +0530, Aditya Shankar wrote:
> Change the config packet format used in handle_set_wfi_drv_handler()
> to align the host driver with the new format used in the wilc firmware.
>
> The change updates the format in which the host driver provides the
> firmware with the drv_handler index and also uses two new
> fields viz. "mode" and 'name" in the config packet along with this index
> to directly provide details about the interface and its mode to the
> firmware instead of having multiple if-else statements in the host driver
> to decide which interface to configure.
>
> Signed-off-by: Aditya Shankar <aditya.shan...@microchip.com>
> Reviewed-by: Arend Van Spriel <arend.vanspr...@broadcom.com>
> ---
> Change in v2: Fix build warning
> Change in v3: Address review comments from v2
> ---
> drivers/staging/wilc1000/host_interface.c | 48
> ++++++++++++++++++-----
> drivers/staging/wilc1000/host_interface.h | 9 ++++-
> drivers/staging/wilc1000/linux_wlan.c | 37 +++++------------
> drivers/staging/wilc1000/wilc_wfi_cfgoperations.c | 2 +-
> drivers/staging/wilc1000/wilc_wfi_netdevice.h | 1 +
> drivers/staging/wilc1000/wilc_wlan_if.h | 2 +-
> 6 files changed, 59 insertions(+), 40 deletions(-)
>
> diff --git a/drivers/staging/wilc1000/host_interface.c
> b/drivers/staging/wilc1000/host_interface.c
> index c3a8af0..7352488 100644
> --- a/drivers/staging/wilc1000/host_interface.c
> +++ b/drivers/staging/wilc1000/host_interface.c
> @@ -334,14 +334,39 @@ static void handle_set_wfi_drv_handler(struct wilc_vif
> *vif,
> {
> int ret = 0;
> struct wid wid;
> + u8 *currbyte, *buffer;
> + struct host_if_drv *hif_drv = NULL;
> +
> + if (!vif->hif_drv)
> + return;
> +
> + if (!hif_drv_handler)
> + return;
> +
> + hif_drv = vif->hif_drv;
> + buffer = kzalloc(DRV_HANDLER_SIZE, GFP_ATOMIC);
> +
> + if (!buffer)
> + return;
Test on the line right after allocation.
And there is no way to return an error from this function? That seems
bad.
And why do you need GFP_ATOMIC?
And finally, where do you free this buffer?
> @@ -3449,8 +3477,10 @@ void wilc_network_info_received(struct wilc *wilc, u8
> *buffer, u32 length)
>
> id = ((buffer[length - 4]) | (buffer[length - 3] << 8) | (buffer[length
> - 2] << 16) | (buffer[length - 1] << 24));
> vif = wilc_get_vif_from_idx(wilc, id);
> +
> if (!vif)
> return;
> +
> hif_drv = vif->hif_drv;
>
> if (!hif_drv || hif_drv == terminated_handle) {
Unneeded whitespace changes. Don't do that in a patch that does other
things.
thanks,
greg k-h
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