aboutsummaryrefslogtreecommitdiff
path: root/drivers/net/wireless/ath/main.c
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2009-09-14 10:37:28 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2009-09-14 10:37:28 -0700
commitd7e9660ad9d5e0845f52848bce31bcf5cdcdea6b (patch)
treec6c67d145771187b194d79d603742b31090a59d6 /drivers/net/wireless/ath/main.c
parentb8cb48aae1b8c50b37dcb7710363aa69a7a0d9ca (diff)
parent13af7a6ea502fcdd4c0e3d7de6e332b102309491 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1623 commits) netxen: update copyright netxen: fix tx timeout recovery netxen: fix file firmware leak netxen: improve pci memory access netxen: change firmware write size tg3: Fix return ring size breakage netxen: build fix for INET=n cdc-phonet: autoconfigure Phonet address Phonet: back-end for autoconfigured addresses Phonet: fix netlink address dump error handling ipv6: Add IFA_F_DADFAILED flag net: Add DEVTYPE support for Ethernet based devices mv643xx_eth.c: remove unused txq_set_wrr() ucc_geth: Fix hangs after switching from full to half duplex ucc_geth: Rearrange some code to avoid forward declarations phy/marvell: Make non-aneg speed/duplex forcing work for 88E1111 PHYs drivers/net/phy: introduce missing kfree drivers/net/wan: introduce missing kfree net: force bridge module(s) to be GPL Subject: [PATCH] appletalk: Fix skb leak when ipddp interface is not loaded ... Fixed up trivial conflicts: - arch/x86/include/asm/socket.h converted to <asm-generic/socket.h> in the x86 tree. The generic header has the same new #define's, so that works out fine. - drivers/net/tun.c fix conflict between 89f56d1e9 ("tun: reuse struct sock fields") that switched over to using 'tun->socket.sk' instead of the redundantly available (and thus removed) 'tun->sk', and 2b980dbd ("lsm: Add hooks to the TUN driver") which added a new 'tun->sk' use. Noted in 'next' by Stephen Rothwell.
Diffstat (limited to 'drivers/net/wireless/ath/main.c')
-rw-r--r--drivers/net/wireless/ath/main.c36
1 files changed, 36 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/main.c b/drivers/net/wireless/ath/main.c
index 9949b11cb15..487193f1de1 100644
--- a/drivers/net/wireless/ath/main.c
+++ b/drivers/net/wireless/ath/main.c
@@ -17,6 +17,42 @@
#include <linux/kernel.h>
#include <linux/module.h>
+#include "ath.h"
+
MODULE_AUTHOR("Atheros Communications");
MODULE_DESCRIPTION("Shared library for Atheros wireless LAN cards.");
MODULE_LICENSE("Dual BSD/GPL");
+
+struct sk_buff *ath_rxbuf_alloc(struct ath_common *common,
+ u32 len,
+ gfp_t gfp_mask)
+{
+ struct sk_buff *skb;
+ u32 off;
+
+ /*
+ * Cache-line-align. This is important (for the
+ * 5210 at least) as not doing so causes bogus data
+ * in rx'd frames.
+ */
+
+ /* Note: the kernel can allocate a value greater than
+ * what we ask it to give us. We really only need 4 KB as that
+ * is this hardware supports and in fact we need at least 3849
+ * as that is the MAX AMSDU size this hardware supports.
+ * Unfortunately this means we may get 8 KB here from the
+ * kernel... and that is actually what is observed on some
+ * systems :( */
+ skb = __dev_alloc_skb(len + common->cachelsz - 1, gfp_mask);
+ if (skb != NULL) {
+ off = ((unsigned long) skb->data) % common->cachelsz;
+ if (off != 0)
+ skb_reserve(skb, common->cachelsz - off);
+ } else {
+ printk(KERN_ERR "skbuff alloc of size %u failed\n", len);
+ return NULL;
+ }
+
+ return skb;
+}
+EXPORT_SYMBOL(ath_rxbuf_alloc);