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Fix warnings in arch/arm/cpu/arm920t/s3c24x0/usb_ohci.c

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Sorry if this is already fixed somewhere - I could not find it.

This fixes these warnings:

usb_ohci.c: In function 'submit_control_msg':
usb_ohci.c:1081: warning: dereferencing pointer 'data_buf.76' does break strict-aliasing rules
usb_ohci.c:1081: note: initialized from here
usb_ohci.c:1084: warning: dereferencing pointer 'data_buf.76' does break strict-aliasing rules
usb_ohci.c:1084: note: initialized from here
usb_ohci.c:1087: warning: dereferencing pointer 'data_buf.76' does break strict-aliasing rules
usb_ohci.c:1087: note: initialized from here

Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Mike Frysinger <vapier@gentoo.org>
This commit is contained in:
Simon Glass 2011-11-15 18:17:06 +00:00 • committed by Wolfgang Denk
parent 00b7d6ecc9
commit 13119bc9fb
1 changed files with 12 additions and 8 deletions
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20
arch/arm/cpu/arm920t/s3c24x0/usb_ohci.c
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@ -1041,8 +1041,12 @@ static int ohci_submit_rh_msg(struct usb_device *dev, unsigned long pipe,
int leni = transfer_len;
int len = 0;
int stat = 0;
__u32 datab[4];
__u8 *data_buf = (__u8 *) datab;
union {
__u32 word[4];
__u16 hword[8];
__u8 byte[16];
} datab;
__u8 *data_buf = datab.byte;
__u16 bmRType_bReq;
__u16 wValue;
__u16 wIndex;
@ -1078,20 +1082,20 @@ static int ohci_submit_rh_msg(struct usb_device *dev, unsigned long pipe,
*/
case RH_GET_STATUS:
*(__u16 *) data_buf = m16_swap(1);
datab.hword[0] = m16_swap(1);
OK(2);
case RH_GET_STATUS | RH_INTERFACE:
*(__u16 *) data_buf = m16_swap(0);
datab.hword[0] = m16_swap(0);
OK(2);
case RH_GET_STATUS | RH_ENDPOINT:
*(__u16 *) data_buf = m16_swap(0);
datab.hword[0] = m16_swap(0);
OK(2);
case RH_GET_STATUS | RH_CLASS:
*(__u32 *) data_buf =
datab.word[0] =
m32_swap(RD_RH_STAT & ~(RH_HS_CRWE | RH_HS_DRWE));
OK(4);
case RH_GET_STATUS | RH_OTHER | RH_CLASS:
*(__u32 *) data_buf = m32_swap(RD_RH_PORTSTAT);
datab.word[0] = m32_swap(RD_RH_PORTSTAT);
OK(4);
case RH_CLEAR_FEATURE | RH_ENDPOINT:
@ -1223,7 +1227,7 @@ static int ohci_submit_rh_msg(struct usb_device *dev, unsigned long pipe,
data_buf[3] |= 0x8;
/* corresponds to data_buf[4-7] */
datab[1] = 0;
datab.word[1] = 0;
data_buf[5] = (temp & RH_A_POTPGT) >> 24;
temp = roothub_b(&gohci);
data_buf[7] = temp & RH_B_DR;