Drop ath6kl patch to avoid using virt_addr_valid()

I still don't think it should be using this function, but the build
failure on MIPS was fixed by:

commit d3ce88431892b703b04769566338a89eda6b0477
Author: Ralf Baechle <ralf@linux-mips.org>
Date:   Fri Dec 28 15:34:40 2012 +0100

    MIPS: Fix modpost error in modules attepting to use virt_addr_valid().


svn path=/dists/trunk/linux/; revision=20553

debian/patches/bugfix/all/ath6kl-do-not-use-virt_addr_valid.patch

@@ -1,88 +0,0 @@
-From: Ben Hutchings <ben@decadent.org.uk>
-Subject: ath6kl: Do not use virt_addr_valid()
-Date: Sun, 06 Jan 2013 05:54:24 +0000
-Forwarded: no
-
-virt_addr_valid() doesn't seem to be meant for drivers to use, and
-currently cannot be used from modules on MIPS:
-
-ERROR: "min_low_pfn" [drivers/net/wireless/ath/ath6kl/ath6kl_sdio.ko] undefined!
-
-Instead of trying to check the given pointer, split
-ath6kl_sdio_read_write_sync() into two functions:
-__ath6kl_sdio_read_write_sync() takes an explicit 'may_dma' parameter
-and ath6kl_sdio_read_write_sync() is a wrapper that passes false.
-Make __ath6kl_sdio_write_async() pass true since we know it always has
-a heap-allocated buffer and it's the one case where the performance
-benefit of DMA matters.
-
---- a/drivers/net/wireless/ath/ath6kl/sdio.c
-+++ b/drivers/net/wireless/ath/ath6kl/sdio.c
-@@ -79,17 +79,6 @@ static inline struct ath6kl_sdio *ath6kl
- 	return ar->hif_priv;
- }
- 
--/*
-- * Macro to check if DMA buffer is WORD-aligned and DMA-able.
-- * Most host controllers assume the buffer is DMA'able and will
-- * bug-check otherwise (i.e. buffers on the stack). virt_addr_valid
-- * check fails on stack memory.
-- */
--static inline bool buf_needs_bounce(u8 *buf)
--{
--	return ((unsigned long) buf & 0x3) || !virt_addr_valid(buf);
--}
--
- static void ath6kl_sdio_set_mbox_info(struct ath6kl *ar)
- {
- 	struct ath6kl_mbox_info *mbox_info = &ar->mbox_info;
-@@ -394,8 +383,8 @@ static int ath6kl_sdio_alloc_prep_scat_r
- 	return 0;
- }
- 
--static int ath6kl_sdio_read_write_sync(struct ath6kl *ar, u32 addr, u8 *buf,
--				       u32 len, u32 request)
-+static int __ath6kl_sdio_read_write_sync(struct ath6kl *ar, u32 addr, u8 *buf,
-+					 u32 len, u32 request, bool may_dma)
- {
- 	struct ath6kl_sdio *ar_sdio = ath6kl_sdio_priv(ar);
- 	u8  *tbuf = NULL;
-@@ -405,7 +394,10 @@ static int ath6kl_sdio_read_write_sync(s
- 	if (request & HIF_BLOCK_BASIS)
- 		len = round_down(len, HIF_MBOX_BLOCK_SIZE);
- 
--	if (buf_needs_bounce(buf)) {
-+	/* Most host controllers assume the buffer is DMA'able. We
-+	 * must use a bounce buffer if it isn't.
-+	 */
-+	if ((unsigned long) buf & 0x3 || !may_dma) {
- 		if (!ar_sdio->dma_buffer)
- 			return -ENOMEM;
- 		mutex_lock(&ar_sdio->dma_buffer_mutex);
-@@ -428,6 +420,13 @@ static int ath6kl_sdio_read_write_sync(s
- 	return ret;
- }
- 
-+static int ath6kl_sdio_read_write_sync(struct ath6kl *ar, u32 addr, u8 *buf,
-+				       u32 len, u32 request)
-+{
-+	return __ath6kl_sdio_read_write_sync(ar, addr, buf, len, request,
-+					     false);
-+}
-+
- static void __ath6kl_sdio_write_async(struct ath6kl_sdio *ar_sdio,
- 				      struct bus_request *req)
- {
-@@ -437,9 +436,9 @@ static void __ath6kl_sdio_write_async(st
- 		void *context;
- 		int status;
- 
--		status = ath6kl_sdio_read_write_sync(ar_sdio->ar, req->address,
--						     req->buffer, req->length,
--						     req->request);
-+		status = __ath6kl_sdio_read_write_sync(
-+			ar_sdio->ar, req->address, req->buffer, req->length,
-+			req->request, true);
- 		context = req->packet;
- 		ath6kl_sdio_free_bus_req(ar_sdio, req);
- 		ath6kl_hif_rw_comp_handler(context, status);

debian/patches/series

@@ -62,7 +62,6 @@ bugfix/mips/disable-advansys.patch
 bugfix/powerpc/lpar-console.patch
 bugfix/all/dm-Deal-with-merge_bvec_fn-in-component-devices-bett.patch
 bugfix/arm/ixp4xx_iobe.patch
-bugfix/all/ath6kl-do-not-use-virt_addr_valid.patch
 features/all/cpu-devices/Partially-revert-cpufreq-Add-support-for-x86-cpuinfo.patch
 bugfix/x86/viafb-autoload-on-olpc-xo1.5-only.patch
 bugfix/all/misc-bmp085-Enable-building-as-a-module.patch