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authorIngo Molnar <mingo@kernel.org>2015-03-05 20:52:18 +0100
committerIngo Molnar <mingo@kernel.org>2015-03-05 20:52:18 +0100
commit33ca8a53f262b4af40611bea331b8c87d133af72 (patch)
treed6468c820a556c4915bcb5b761204a0fb19e8225 /drivers/net/wireless/rtlwifi/pci.h
parentdb2dcb4f91d5fec5c346a82c309187ee821e2495 (diff)
parent13a7a6ac0a11197edcd0f756a035f472b42cdf8b (diff)
Merge tag 'v4.0-rc2' into irq/core, to refresh the tree before applying new changes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'drivers/net/wireless/rtlwifi/pci.h')
-rw-r--r--drivers/net/wireless/rtlwifi/pci.h7
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/net/wireless/rtlwifi/pci.h b/drivers/net/wireless/rtlwifi/pci.h
index 5e832306dba9..d4567d12e07e 100644
--- a/drivers/net/wireless/rtlwifi/pci.h
+++ b/drivers/net/wireless/rtlwifi/pci.h
@@ -325,4 +325,11 @@ static inline void pci_write32_async(struct rtl_priv *rtlpriv,
writel(val, (u8 __iomem *) rtlpriv->io.pci_mem_start + addr);
}
+static inline u16 calc_fifo_space(u16 rp, u16 wp)
+{
+ if (rp <= wp)
+ return RTL_PCI_MAX_RX_COUNT - 1 + rp - wp;
+ return rp - wp - 1;
+}
+
#endif