Albert Herranz wrote:
> The DMA-API debugging facility complains about b43 mapping memory from
> stack for SDIO-based cards.
>
> Indeed, b43 currently allocates the PIO RX/TX header and tail buffers
> from stack. The solution here is to use heap-allocated buffers instead.
>
> Signed-off-by: Albert Herranz <albert_herranz@xxxxxxxx>
> ---
> v2
> - embed buffers into struct b43_wl, and make them depend on CONFIG_B43_PIO
> - take into account tail buffers for unaligned length transfers
>
> drivers/net/wireless/b43/b43.h | 168 +++++++++++++++++++++------------------
> drivers/net/wireless/b43/pio.c | 78 +++++++++---------
> drivers/net/wireless/b43/xmit.c | 2 +-
> 3 files changed, 132 insertions(+), 116 deletions(-)
>
> diff --git a/drivers/net/wireless/b43/b43.h b/drivers/net/wireless/b43/b43.h
> index fa1549a..6607162 100644
> --- a/drivers/net/wireless/b43/b43.h
> +++ b/drivers/net/wireless/b43/b43.h
> @@ -607,82 +607,7 @@ struct b43_qos_params {
> struct ieee80211_tx_queue_params p;
> };
>
> -struct b43_wldev;
> -
> -/* Data structure for the WLAN parts (802.11 cores) of the b43 chip. */
> -struct b43_wl {
> - /* Pointer to the active wireless device on this chip */
> - struct b43_wldev *current_dev;
> - /* Pointer to the ieee80211 hardware data structure */
> - struct ieee80211_hw *hw;
What is the reason for moving the definition of struct b43_wl?
Larry
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