Re: [PATCH v3 2/6] InfiniBand-ocrdma: Delete unnecessary variable initialisations in 11 functions

[Leon Romanovsky <leon@leon.nu>]

On Thu, Jan 14, 2016 at 06:43:13PM +0100, SF Markus Elfring wrote:
> From: Markus Elfring <elfring@users.sourceforge.net>
> Date: Thu, 14 Jan 2016 17:47:59 +0100
> 
> The variable "status" will be set to an appropriate value a bit later.
> Thus omit the explicit initialisation at the beginning.

What did you try to achieve by this patch?

> 
> Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
> ---
>  drivers/infiniband/hw/ocrdma/ocrdma_ah.c    |  2 +-
>  drivers/infiniband/hw/ocrdma/ocrdma_hw.c    |  4 ++--
>  drivers/infiniband/hw/ocrdma/ocrdma_stats.c |  4 ++--
>  drivers/infiniband/hw/ocrdma/ocrdma_verbs.c | 12 ++++++------
>  4 files changed, 11 insertions(+), 11 deletions(-)
> 
> diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_ah.c b/drivers/infiniband/hw/ocrdma/ocrdma_ah.c
> index a343e03..41f0171 100644
> --- a/drivers/infiniband/hw/ocrdma/ocrdma_ah.c
> +++ b/drivers/infiniband/hw/ocrdma/ocrdma_ah.c
> @@ -59,7 +59,7 @@ static inline int set_av_attr(struct ocrdma_dev *dev, struct ocrdma_ah *ah,
>  			struct ib_ah_attr *attr, union ib_gid *sgid,
>  			int pdid, bool *isvlan, u16 vlan_tag)
>  {
> -	int status = 0;
> +	int status;
>  	struct ocrdma_eth_vlan eth;
>  	struct ocrdma_grh grh;
>  	int eth_sz;
> diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_hw.c b/drivers/infiniband/hw/ocrdma/ocrdma_hw.c
> index 283ca84..159b1d5 100644
> --- a/drivers/infiniband/hw/ocrdma/ocrdma_hw.c
> +++ b/drivers/infiniband/hw/ocrdma/ocrdma_hw.c
> @@ -1113,7 +1113,7 @@ mbx_err:
>  static int ocrdma_nonemb_mbx_cmd(struct ocrdma_dev *dev, struct ocrdma_mqe *mqe,
>  				 void *payload_va)
>  {
> -	int status = 0;
> +	int status;
>  	struct ocrdma_mbx_rsp *rsp = payload_va;
>  
>  	if ((mqe->hdr.spcl_sge_cnt_emb & OCRDMA_MQE_HDR_EMB_MASK) >>
> @@ -2871,7 +2871,7 @@ int ocrdma_mbx_destroy_srq(struct ocrdma_dev *dev, struct ocrdma_srq *srq)
>  static int ocrdma_mbx_get_dcbx_config(struct ocrdma_dev *dev, u32 ptype,
>  				      struct ocrdma_dcbx_cfg *dcbxcfg)
>  {
> -	int status = 0;
> +	int status;
>  	dma_addr_t pa;
>  	struct ocrdma_mqe cmd;
>  
> diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_stats.c b/drivers/infiniband/hw/ocrdma/ocrdma_stats.c
> index 86c303a..119baa3 100644
> --- a/drivers/infiniband/hw/ocrdma/ocrdma_stats.c
> +++ b/drivers/infiniband/hw/ocrdma/ocrdma_stats.c
> @@ -608,7 +608,7 @@ static char *ocrdma_driver_dbg_stats(struct ocrdma_dev *dev)
>  static void ocrdma_update_stats(struct ocrdma_dev *dev)
>  {
>  	ulong now = jiffies, secs;
> -	int status = 0;
> +	int status;
>  	struct ocrdma_rdma_stats_resp *rdma_stats =
>  		      (struct ocrdma_rdma_stats_resp *)dev->stats_mem.va;
>  	struct ocrdma_rsrc_stats *rsrc_stats = &rdma_stats->act_rsrc_stats;
> @@ -639,7 +639,7 @@ static ssize_t ocrdma_dbgfs_ops_write(struct file *filp,
>  {
>  	char tmp_str[32];
>  	long reset;
> -	int status = 0;
> +	int status;
>  	struct ocrdma_stats *pstats = filp->private_data;
>  	struct ocrdma_dev *dev = pstats->dev;
>  
> diff --git a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
> index 4caf167..1d90d18 100644
> --- a/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
> +++ b/drivers/infiniband/hw/ocrdma/ocrdma_verbs.c
> @@ -419,7 +419,7 @@ static struct ocrdma_pd *_ocrdma_alloc_pd(struct ocrdma_dev *dev,
>  					  struct ib_udata *udata)
>  {
>  	struct ocrdma_pd *pd = NULL;
> -	int status = 0;
> +	int status;
>  
>  	pd = kzalloc(sizeof(*pd), GFP_KERNEL);
>  	if (!pd)
> @@ -468,7 +468,7 @@ static inline int is_ucontext_pd(struct ocrdma_ucontext *uctx,
>  static int _ocrdma_dealloc_pd(struct ocrdma_dev *dev,
>  			      struct ocrdma_pd *pd)
>  {
> -	int status = 0;
> +	int status;
>  
>  	if (dev->pd_mgr->pd_prealloc_valid)
>  		status = ocrdma_put_pd_num(dev, pd->id, pd->dpp_enabled);
> @@ -593,7 +593,7 @@ map_err:
>  
>  int ocrdma_dealloc_ucontext(struct ib_ucontext *ibctx)
>  {
> -	int status = 0;
> +	int status;
>  	struct ocrdma_mm *mm, *tmp;
>  	struct ocrdma_ucontext *uctx = get_ocrdma_ucontext(ibctx);
>  	struct ocrdma_dev *dev = get_ocrdma_dev(ibctx->device);
> @@ -620,7 +620,7 @@ int ocrdma_mmap(struct ib_ucontext *context, struct vm_area_struct *vma)
>  	unsigned long vm_page = vma->vm_pgoff << PAGE_SHIFT;
>  	u64 unmapped_db = (u64) dev->nic_info.unmapped_db;
>  	unsigned long len = (vma->vm_end - vma->vm_start);
> -	int status = 0;
> +	int status;
>  	bool found;
>  
>  	if (vma->vm_start & (PAGE_SIZE - 1))
> @@ -1283,7 +1283,7 @@ static int ocrdma_copy_qp_uresp(struct ocrdma_qp *qp,
>  				struct ib_udata *udata, int dpp_offset,
>  				int dpp_credit_lmt, int srq)
>  {
> -	int status = 0;
> +	int status;
>  	u64 usr_db;
>  	struct ocrdma_create_qp_uresp uresp;
>  	struct ocrdma_pd *pd = qp->pd;
> @@ -1947,7 +1947,7 @@ int ocrdma_modify_srq(struct ib_srq *ibsrq,
>  		      enum ib_srq_attr_mask srq_attr_mask,
>  		      struct ib_udata *udata)
>  {
> -	int status = 0;
> +	int status;
>  	struct ocrdma_srq *srq;
>  
>  	srq = get_ocrdma_srq(ibsrq);
> -- 
> 2.6.3
> 
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