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IB/hfi1: use offset_in_page macro

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Use offset_in_page macro instead of (addr & ~PAGE_MASK).

Signed-off-by: Geliang Tang <geliangtang@163.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Geliang Tang 2015-10-03 10:34:59 +08:00 committed by Greg Kroah-Hartman
parent 3a81fc20ea
commit e260e404ba
1 changed files with 4 additions and 4 deletions
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8
drivers/staging/rdma/hfi1/file_ops.c
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@ -168,7 +168,7 @@ enum mmap_types {
HFI1_MMAP_TOKEN_SET(TYPE, type) | \
HFI1_MMAP_TOKEN_SET(CTXT, ctxt) | \
HFI1_MMAP_TOKEN_SET(SUBCTXT, subctxt) | \
HFI1_MMAP_TOKEN_SET(OFFSET, ((unsigned long)addr & ~PAGE_MASK)))
HFI1_MMAP_TOKEN_SET(OFFSET, (offset_in_page(addr))))
#define EXP_TID_SET(field, value) \
(((value) & EXP_TID_TID##field##_MASK) << \
@ -1335,9 +1335,9 @@ static int get_base_info(struct file *fp, void __user *ubase, __u32 len)
*/
binfo.user_regbase = HFI1_MMAP_TOKEN(UREGS, uctxt->ctxt,
subctxt_fp(fp), 0);
offset = ((((uctxt->ctxt - dd->first_user_ctxt) *
offset = offset_in_page((((uctxt->ctxt - dd->first_user_ctxt) *
HFI1_MAX_SHARED_CTXTS) + subctxt_fp(fp)) *
sizeof(*dd->events)) & ~PAGE_MASK;
sizeof(*dd->events));
binfo.events_bufbase = HFI1_MMAP_TOKEN(EVENTS, uctxt->ctxt,
subctxt_fp(fp),
offset);
@ -1573,7 +1573,7 @@ static int exp_tid_setup(struct file *fp, struct hfi1_tid_info *tinfo)
vaddr = tinfo->vaddr;
if (vaddr & ~PAGE_MASK) {
if (offset_in_page(vaddr)) {
ret = -EINVAL;
goto bail;
}