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usb: chipidea: Properly mark little endian descriptors

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The DMA descriptors are little endian, and we do a pretty good
job of handling them with the proper le32_to_cpu() markings, but
we don't actually mark them as __le32. This means checkers like
sparse can't easily find new bugs. Let's mark the members of
structures properly and fix the few places where we're missing
conversions.

Cc: Peter Chen <peter.chen@nxp.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Stephen Boyd <stephen.boyd@linaro.org>
Signed-off-by: Peter Chen <peter.chen@nxp.com>
This commit is contained in:
Stephen Boyd
2016-09-13 22:53:02 -07:00
committed by Peter Chen
parent bb2d387c4d
commit 34445fb433
2 changed files with 9 additions and 9 deletions
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12
drivers/usb/chipidea/udc.h
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@@ -22,11 +22,11 @@
/* DMA layout of transfer descriptors */
struct ci_hw_td {
/* 0 */
u32 next;
__le32 next;
#define TD_TERMINATE BIT(0)
#define TD_ADDR_MASK (0xFFFFFFEUL << 5)
/* 1 */
u32 token;
__le32 token;
#define TD_STATUS (0x00FFUL << 0)
#define TD_STATUS_TR_ERR BIT(3)
#define TD_STATUS_DT_ERR BIT(5)
@@ -36,7 +36,7 @@ struct ci_hw_td {
#define TD_IOC BIT(15)
#define TD_TOTAL_BYTES (0x7FFFUL << 16)
/* 2 */
u32 page[5];
__le32 page[5];
#define TD_CURR_OFFSET (0x0FFFUL << 0)
#define TD_FRAME_NUM (0x07FFUL << 0)
#define TD_RESERVED_MASK (0x0FFFUL << 0)
@@ -45,18 +45,18 @@ struct ci_hw_td {
/* DMA layout of queue heads */
struct ci_hw_qh {
/* 0 */
u32 cap;
__le32 cap;
#define QH_IOS BIT(15)
#define QH_MAX_PKT (0x07FFUL << 16)
#define QH_ZLT BIT(29)
#define QH_MULT (0x0003UL << 30)
#define QH_ISO_MULT(x) ((x >> 11) & 0x03)
/* 1 */
u32 curr;
__le32 curr;
/* 2 - 8 */
struct ci_hw_td td;
/* 9 */
u32 RESERVED;
__le32 RESERVED;
struct usb_ctrlrequest setup;
} __attribute__ ((packed, aligned(4)));