From patchwork Tue Mar 7 11:32:14 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Bruce Richardson X-Patchwork-Id: 21541 X-Patchwork-Delegate: thomas@monjalon.net Return-Path: X-Original-To: patchwork@dpdk.org Delivered-To: patchwork@dpdk.org Received: from [92.243.14.124] (localhost [IPv6:::1]) by dpdk.org (Postfix) with ESMTP id D0A04F966; Tue, 7 Mar 2017 12:33:55 +0100 (CET) Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by dpdk.org (Postfix) with ESMTP id 270B4BD28 for ; Tue, 7 Mar 2017 12:33:32 +0100 (CET) Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by fmsmga102.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 07 Mar 2017 03:33:31 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.35,258,1484035200"; d="scan'208";a="831864346" Received: from sivswdev01.ir.intel.com ([10.237.217.45]) by FMSMGA003.fm.intel.com with ESMTP; 07 Mar 2017 03:33:30 -0800 From: Bruce Richardson To: olivier.matz@6wind.com Cc: jerin.jacob@caviumnetworks.com, dev@dpdk.org, Bruce Richardson Date: Tue, 7 Mar 2017 11:32:14 +0000 Message-Id: <20170307113217.11077-12-bruce.richardson@intel.com> X-Mailer: git-send-email 2.8.4 In-Reply-To: <20170307113217.11077-1-bruce.richardson@intel.com> References: <20170223172407.27664-1-bruce.richardson@intel.com> <20170307113217.11077-1-bruce.richardson@intel.com> Subject: [dpdk-dev] [PATCH v2 11/14] ring: reduce scope of local variables X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" The local variable i is only used for loop control so define it in the enqueue and dequeue blocks directly, rather than at the function level. Signed-off-by: Bruce Richardson --- lib/librte_ring/rte_ring.h | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/lib/librte_ring/rte_ring.h b/lib/librte_ring/rte_ring.h index ca25dd7..4e5219a 100644 --- a/lib/librte_ring/rte_ring.h +++ b/lib/librte_ring/rte_ring.h @@ -288,6 +288,7 @@ void rte_ring_dump(FILE *f, const struct rte_ring *r); * Placed here since identical code needed in both * single and multi producer enqueue functions */ #define ENQUEUE_PTRS() do { \ + unsigned int i; \ const uint32_t size = r->size; \ uint32_t idx = prod_head & mask; \ if (likely(idx + n < size)) { \ @@ -314,6 +315,7 @@ void rte_ring_dump(FILE *f, const struct rte_ring *r); * Placed here since identical code needed in both * single and multi consumer dequeue functions */ #define DEQUEUE_PTRS() do { \ + unsigned int i; \ uint32_t idx = cons_head & mask; \ const uint32_t size = r->size; \ if (likely(idx + n < size)) { \ @@ -364,7 +366,6 @@ __rte_ring_mp_do_enqueue(struct rte_ring *r, void * const *obj_table, uint32_t cons_tail, free_entries; const unsigned int max = n; int success; - unsigned int i; uint32_t mask = r->mask; /* move prod.head atomically */ @@ -434,7 +435,6 @@ __rte_ring_sp_do_enqueue(struct rte_ring *r, void * const *obj_table, { uint32_t prod_head, cons_tail; uint32_t prod_next, free_entries; - unsigned int i; uint32_t mask = r->mask; prod_head = r->prod.head; @@ -498,7 +498,6 @@ __rte_ring_mc_do_dequeue(struct rte_ring *r, void **obj_table, uint32_t cons_next, entries; const unsigned max = n; int success; - unsigned int i; uint32_t mask = r->mask; /* move cons.head atomically */ @@ -569,7 +568,6 @@ __rte_ring_sc_do_dequeue(struct rte_ring *r, void **obj_table, { uint32_t cons_head, prod_tail; uint32_t cons_next, entries; - unsigned int i; uint32_t mask = r->mask; cons_head = r->cons.head;