On Tue, Jul 22, 2008 at 2:53 PM, Davide Pesavento <davidepesa@xxxxxxxxx> wrote:
> Great news!
>
> Today I applied ath9k patches on top of linux-wireless git tree on a
> MacBookPro2,2 and I found that it works! (after a little bit of
> hacking...)
>
> First of all, my hardware is the following:
>
> # lspci -v
> 03:00.0 Network controller: Atheros Communications Inc. AR5418
> 802.11abgn Wireless PCI Express Adapter (rev 01)
> Flags: bus master, fast devsel, latency 0, IRQ 17
> Memory at 98100000 (64-bit, non-prefetchable) [size=64K]
> Capabilities: [40] Power Management version 2
> Capabilities: [50] Message Signalled Interrupts: Mask- 64bit-
> Queue=0/0 Enable-
> Capabilities: [60] Express Legacy Endpoint, MSI 00
> Capabilities: [90] MSI-X: Enable- Mask- TabSize=1
> Kernel driver in use: ath9k
> Kernel modules: ath9k
>
> # dmesg
> [ 7.760727] ath9k: 0.1
> [ 7.760727] ACPI: PCI Interrupt 0000:03:00.0[A] -> GSI 17 (level,
> low) -> IRQ 17
> [ 7.760727] PCI: Setting latency timer of device 0000:03:00.0 to 64
> [ 7.892753] Bad EEPROM checksum 0x866 or revision 0x000e
> [ 7.894551] phy0: Selected rate control algorithm 'ath9k_rate_control'
> [ 8.167891] phy0: Atheros 5416: mem=0xffffc20000500000, irq=17
>
> The "bad eeprom checksum" message is printed (but the failure is
> ignored) because I made a small change to ath9k/hw.c:
>
> --------------------
> diff --git a/drivers/net/wireless/ath9k/hw.c b/drivers/net/wireless/ath9k/hw.c
> index 5ebf35e..aa0a3d9 100644
> --- a/drivers/net/wireless/ath9k/hw.c
> +++ b/drivers/net/wireless/ath9k/hw.c
> @@ -911,10 +911,10 @@ static inline enum hal_status
> ath9k_hw_check_eeprom(struct ath_hal *ah)
>
> if (sum != 0xffff || ar5416_get_eep_ver(ahp) != AR5416_EEP_VER ||
> ar5416_get_eep_rev(ahp) < AR5416_EEP_NO_BACK_VER) {
> - HDPRINTF(ah, HAL_DBG_EEPROM,
> + printk(KERN_DEBUG
> "Bad EEPROM checksum 0x%x or revision 0x%04x\n",
> sum, ar5416_get_eep_ver(ahp));
> - return HAL_EEBADSUM;
> + //return HAL_EEBADSUM;
> }
>
> return HAL_OK;
> --------------------
>
> Without the above patch, the module would fail with the following error:
> "ath_init: unable to attach hardware; HAL status 7"
> Status code 7 is HAL_EEBADSUM indeed.
>
> Maybe MacBook Pro's card has different eeprom's contents? Anyway the
> card now works fine, and it also appears quite stable! ;-)
> Thank you very much for your work!
I believe your last patch may have been "Use skb_end_pointer() ..." if
so then this is why you had this issue. Give the git tree a shot:
git://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/ath9k.git
Luis
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