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prism54 - Use offsetof()

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Use the standard offsetof() macro to fix a compile warning below:
  CC [M]  drivers/net/wireless/prism54/isl_ioctl.o
drivers/net/wireless/prism54/isl_ioctl.c: In function 'prism2_ioctl_set_generic_element':
drivers/net/wireless/prism54/isl_ioctl.c:2658: warning: cast from pointer to integer of different size

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Takashi Iwai 2008-07-31 19:03:10 +02:00 committed by John W. Linville
parent fb55d887c5
commit 3d0f823953
1 changed files with 1 additions and 1 deletions
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drivers/net/wireless/prism54/isl_ioctl.c
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@ -2518,7 +2518,7 @@ enum {
#define PRISM2_HOSTAPD_MAX_BUF_SIZE 1024
#define PRISM2_HOSTAPD_GENERIC_ELEMENT_HDR_LEN \
((int) (&((struct prism2_hostapd_param *) 0)->u.generic_elem.data))
offsetof(struct prism2_hostapd_param, u.generic_elem.data)
/* Maximum length for algorithm names (-1 for nul termination)
* used in ioctl() */