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authorPatrick McHardy <kaber@trash.net>2010-06-15 19:31:06 +0400
committerPatrick McHardy <kaber@trash.net>2010-06-15 19:31:06 +0400
commitf9181f4ffc71d7b7dd1906c9a11d51d6659220ae (patch)
tree194f22e8216a1b9ee2c0dd019142202d73a7dc87 /drivers/net/wireless/iwlwifi/iwl-helpers.h
parent0902b469bd25065aa0688c3cee6f11744c817e7c (diff)
parent1ab6c163dee279559e3a62d774af7e4c4c9b4c67 (diff)
downloadlinux-f9181f4ffc71d7b7dd1906c9a11d51d6659220ae.tar.xz
Merge branch 'master' of /repos/git/net-next-2.6
Conflicts: include/net/netfilter/xt_rateest.h net/bridge/br_netfilter.c net/netfilter/nf_conntrack_core.c Signed-off-by: Patrick McHardy <kaber@trash.net>
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-helpers.h')
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-helpers.h27
1 files changed, 27 insertions, 0 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-helpers.h b/drivers/net/wireless/iwlwifi/iwl-helpers.h
index 3ff6b9d25a10..621abe3c5afc 100644
--- a/drivers/net/wireless/iwlwifi/iwl-helpers.h
+++ b/drivers/net/wireless/iwlwifi/iwl-helpers.h
@@ -92,6 +92,11 @@ static inline void iwl_free_fw_desc(struct pci_dev *pci_dev,
static inline int iwl_alloc_fw_desc(struct pci_dev *pci_dev,
struct fw_desc *desc)
{
+ if (!desc->len) {
+ desc->v_addr = NULL;
+ return -EINVAL;
+ }
+
desc->v_addr = dma_alloc_coherent(&pci_dev->dev, desc->len,
&desc->p_addr, GFP_KERNEL);
return (desc->v_addr != NULL) ? 0 : -ENOMEM;
@@ -170,4 +175,26 @@ static inline void iwl_enable_interrupts(struct iwl_priv *priv)
iwl_write32(priv, CSR_INT_MASK, priv->inta_mask);
}
+/**
+ * iwl_beacon_time_mask_low - mask of lower 32 bit of beacon time
+ * @priv -- pointer to iwl_priv data structure
+ * @tsf_bits -- number of bits need to shift for masking)
+ */
+static inline u32 iwl_beacon_time_mask_low(struct iwl_priv *priv,
+ u16 tsf_bits)
+{
+ return (1 << tsf_bits) - 1;
+}
+
+/**
+ * iwl_beacon_time_mask_high - mask of higher 32 bit of beacon time
+ * @priv -- pointer to iwl_priv data structure
+ * @tsf_bits -- number of bits need to shift for masking)
+ */
+static inline u32 iwl_beacon_time_mask_high(struct iwl_priv *priv,
+ u16 tsf_bits)
+{
+ return ((1 << (32 - tsf_bits)) - 1) << tsf_bits;
+}
+
#endif /* __iwl_helpers_h__ */