[PATCH] ntb: intel: fix return value for ndev_vec_mask()

[Dave Jiang]

ndev_vec_mask() should be returning u64 mask value instead of int.
Otherwise the mask value returned can be incorrect for larger
vectors.

Fixes: e26a5843f7f5 ("NTB: Split ntb_hw_intel and ntb_transport drivers")

Signed-off-by: Dave Jiang <dave....@intel.com>
Tested-by: Lucas Van <luca...@intel.com>
---
drivers/ntb/hw/intel/ntb_hw_gen1.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/ntb/hw/intel/ntb_hw_gen1.c b/drivers/ntb/hw/intel/ntb_hw_gen1.c
index 6aa573227279..2ad263f708da 100644
--- a/drivers/ntb/hw/intel/ntb_hw_gen1.c
+++ b/drivers/ntb/hw/intel/ntb_hw_gen1.c
@@ -265,7 +265,7 @@ static inline int ndev_db_clear_mask(struct intel_ntb_dev *ndev, u64 db_bits,
return 0;
}

-static inline int ndev_vec_mask(struct intel_ntb_dev *ndev, int db_vector)
+static inline u64 ndev_vec_mask(struct intel_ntb_dev *ndev, int db_vector)
{
u64 shift, mask;

[Jon Mason]

On Tue, Aug 28, 2018 at 05:13:59PM -0700, Dave Jiang wrote:
> ndev_vec_mask() should be returning u64 mask value instead of int.
> Otherwise the mask value returned can be incorrect for larger
> vectors.
>
> Fixes: e26a5843f7f5 ("NTB: Split ntb_hw_intel and ntb_transport drivers")
>
> Signed-off-by: Dave Jiang <dave....@intel.com>
> Tested-by: Lucas Van <luca...@intel.com>

Pulled into my ntb branch

Thanks,
Jon

> ---
> drivers/ntb/hw/intel/ntb_hw_gen1.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/ntb/hw/intel/ntb_hw_gen1.c b/drivers/ntb/hw/intel/ntb_hw_gen1.c
> index 6aa573227279..2ad263f708da 100644
> --- a/drivers/ntb/hw/intel/ntb_hw_gen1.c
> +++ b/drivers/ntb/hw/intel/ntb_hw_gen1.c
> @@ -265,7 +265,7 @@ static inline int ndev_db_clear_mask(struct intel_ntb_dev *ndev, u64 db_bits,
> return 0;
> }
>
> -static inline int ndev_vec_mask(struct intel_ntb_dev *ndev, int db_vector)
> +static inline u64 ndev_vec_mask(struct intel_ntb_dev *ndev, int db_vector)
> {
> u64 shift, mask;
>
>

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