From mboxrd@z Thu Jan 1 00:00:00 1970 From: Yevgeny Kliteynik Subject: [PATCH v3] opensm/complib/cl_passivelock.h: some casting issues Date: Tue, 02 Feb 2010 15:24:02 +0200 Message-ID: <4B682772.2070304@dev.mellanox.co.il> Reply-To: kliteyn-LDSdmyG8hGV8YrgS2mwiifqBs+8SCbDb@public.gmane.org Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: Sender: linux-rdma-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Sasha Khapyorsky Cc: Linux RDMA List-Id: linux-rdma@vger.kernel.org Sasha, There are couple of problematic castings in complib/cl_passivelock.h: (cl_status_t) pthread_rwlock_*() Turns out that compiler doesn't like casting directly from int to enum, probably because int can be negative: cl_passivelock.h:199: warning: cast from function call of type 'int' to non-matching type 'enum _cl_status' cl_passivelock.h:241: warning: cast from function call of type 'int' to non-matching type 'enum _cl_status' cl_passivelock.h:274: warning: cast from function call of type 'int' to non-matching type 'enum _cl_status' cl_passivelock.h:306: warning: cast from function call of type 'int' to non-matching type 'enum _cl_status' Se we need to cast the return value in two stages: to unsigned, and then to enum. Signed-off-by: Yevgeny Kliteynik --- Changes from v2: can't do implicit casting from unsigned to enum, so specifying it explicitly. opensm/include/complib/cl_passivelock.h | 8 ++++---- 1 files changed, 4 insertions(+), 4 deletions(-) diff --git a/opensm/include/complib/cl_passivelock.h b/opensm/include/complib/cl_passivelock.h index bafd339..aba4e64 100644 --- a/opensm/include/complib/cl_passivelock.h +++ b/opensm/include/complib/cl_passivelock.h @@ -196,7 +196,7 @@ static inline cl_status_t cl_plock_init(IN cl_plock_t * const p_lock) cl_status_t status; CL_ASSERT(p_lock); - status = (cl_status_t) pthread_rwlock_init(&p_lock->lock, NULL); + status = (cl_status_t)(unsigned) pthread_rwlock_init(&p_lock->lock, NULL); if (status) return CL_ERROR; p_lock->state = CL_INITIALIZED; @@ -238,7 +238,7 @@ static inline void cl_plock_acquire(IN cl_plock_t * const p_lock) CL_ASSERT(p_lock); CL_ASSERT(p_lock->state == CL_INITIALIZED); - status = (cl_status_t) pthread_rwlock_rdlock(&p_lock->lock); + status = (cl_status_t)(unsigned) pthread_rwlock_rdlock(&p_lock->lock); CL_ASSERT(status == 0); } @@ -271,7 +271,7 @@ static inline void cl_plock_excl_acquire(IN cl_plock_t * const p_lock) CL_ASSERT(p_lock); CL_ASSERT(p_lock->state == CL_INITIALIZED); - status = (cl_status_t) pthread_rwlock_wrlock(&p_lock->lock); + status = (cl_status_t)(unsigned) pthread_rwlock_wrlock(&p_lock->lock); CL_ASSERT(status == 0); } @@ -303,7 +303,7 @@ static inline void cl_plock_release(IN cl_plock_t * const p_lock) CL_ASSERT(p_lock); CL_ASSERT(p_lock->state == CL_INITIALIZED); - status = (cl_status_t) pthread_rwlock_unlock(&p_lock->lock); + status = (cl_status_t)(unsigned) pthread_rwlock_unlock(&p_lock->lock); CL_ASSERT(status == 0); } -- 1.5.1.4 -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html