commit 28b9325e6ae45ffb5e99fedcafe00f25fcaacf06
author Alan Stern <stern@rowland.harvard.edu> Mon Feb 19 15:51:51 2007 -0500
committer Greg Kroah-Hartman <gregkh@suse.de> Fri Feb 23 15:03:45 2007 -0800
tree 91391a8e2d11acc50adc5b7c631b2695bee9e453
parent d0374f4f9c35cdfbee0ade72d06732613b4e6628

UHCI: Add macros for computing DMA values

This patch (as855) adds some convenience macros to uhci-hcd, to help
simplify the code for computing hardware DMA pointers.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

drivers/usb/host/uhci-hcd.c

diff --git a/drivers/usb/host/uhci-hcd.c b/drivers/usb/host/uhci-hcd.c
index ded4df3..1f0833ab 100644
--- a/drivers/usb/host/uhci-hcd.c
+++ b/drivers/usb/host/uhci-hcd.c
@@ -116,7 +116,7 @@
 	skelnum = 8 - (int) __ffs(frame | UHCI_NUMFRAMES);
 	if (skelnum <= 1)
 		skelnum = 9;
-	return UHCI_PTR_QH | cpu_to_le32(uhci->skelqh[skelnum]->dma_handle);
+	return LINK_TO_QH(uhci->skelqh[skelnum]);
 }
 
 #include "uhci-debug.c"
@@ -635,25 +635,21 @@
 			uhci->skel_int16_qh->link =
 			uhci->skel_int8_qh->link =
 			uhci->skel_int4_qh->link =
-			uhci->skel_int2_qh->link = UHCI_PTR_QH |
-			cpu_to_le32(uhci->skel_int1_qh->dma_handle);
+			uhci->skel_int2_qh->link = LINK_TO_QH(
+				uhci->skel_int1_qh);
 
-	uhci->skel_int1_qh->link = UHCI_PTR_QH |
-			cpu_to_le32(uhci->skel_ls_control_qh->dma_handle);
-	uhci->skel_ls_control_qh->link = UHCI_PTR_QH |
-			cpu_to_le32(uhci->skel_fs_control_qh->dma_handle);
-	uhci->skel_fs_control_qh->link = UHCI_PTR_QH |
-			cpu_to_le32(uhci->skel_bulk_qh->dma_handle);
-	uhci->skel_bulk_qh->link = UHCI_PTR_QH |
-			cpu_to_le32(uhci->skel_term_qh->dma_handle);
+	uhci->skel_int1_qh->link = LINK_TO_QH(uhci->skel_ls_control_qh);
+	uhci->skel_ls_control_qh->link = LINK_TO_QH(uhci->skel_fs_control_qh);
+	uhci->skel_fs_control_qh->link = LINK_TO_QH(uhci->skel_bulk_qh);
+	uhci->skel_bulk_qh->link = LINK_TO_QH(uhci->skel_term_qh);
 
 	/* This dummy TD is to work around a bug in Intel PIIX controllers */
 	uhci_fill_td(uhci->term_td, 0, uhci_explen(0) |
 		(0x7f << TD_TOKEN_DEVADDR_SHIFT) | USB_PID_IN, 0);
-	uhci->term_td->link = cpu_to_le32(uhci->term_td->dma_handle);
+	uhci->term_td->link = LINK_TO_TD(uhci->term_td);
 
 	uhci->skel_term_qh->link = UHCI_PTR_TERM;
-	uhci->skel_term_qh->element = cpu_to_le32(uhci->term_td->dma_handle);
+	uhci->skel_term_qh->element = LINK_TO_TD(uhci->term_td);
 
 	/*
 	 * Fill the frame list: make all entries point to the proper