diff options
| author | Harish Chegondi <harish.chegondi@intel.com> | 2017-08-22 04:27:16 +0300 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2017-08-29 02:12:21 +0300 |
| commit | ddd3affb50015c3c7ee218b83e73e646aa48e212 (patch) | |
| tree | b421c8029bc7580c193d0d21c6acf2c8f96e6bd7 /drivers/infiniband/hw/hfi1/user_exp_rcv.h | |
| parent | 04a646df12766e4e11ecf09cd0336dab69d75034 (diff) | |
| download | linux-ddd3affb50015c3c7ee218b83e73e646aa48e212.tar.xz | |
IB/hfi1: Remove duplicate definitions of num_user_pages() function
num_user_pages() function has been defined in both user_exp_rcv.c file
and user_sdma.c file. Move the function definition to a header file so
there is only one definition in the source repo.
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Harish Chegondi <harish.chegondi@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/hw/hfi1/user_exp_rcv.h')
| -rw-r--r-- | drivers/infiniband/hw/hfi1/user_exp_rcv.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/hfi1/user_exp_rcv.h b/drivers/infiniband/hw/hfi1/user_exp_rcv.h index 8c4eb5d8547e..7461d11b01c4 100644 --- a/drivers/infiniband/hw/hfi1/user_exp_rcv.h +++ b/drivers/infiniband/hw/hfi1/user_exp_rcv.h @@ -60,6 +60,15 @@ struct tid_user_buf { unsigned int n_psets; }; +static inline int num_user_pages(unsigned long addr, + unsigned long len) +{ + const unsigned long spage = addr & PAGE_MASK; + const unsigned long epage = (addr + len - 1) & PAGE_MASK; + + return 1 + ((epage - spage) >> PAGE_SHIFT); +} + int hfi1_user_exp_rcv_init(struct hfi1_filedata *fd, struct hfi1_ctxtdata *uctxt); void hfi1_user_exp_rcv_free(struct hfi1_filedata *fd); |