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[156.34.55.100]) by smtp.gmail.com with ESMTPSA id t12sm2040226qkt.41.2019.05.30.11.43.13 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Thu, 30 May 2019 11:43:14 -0700 (PDT) Received: from jgg by mlx.ziepe.ca with local (Exim 4.90_1) (envelope-from ) id 1hWQ1B-0007k2-KG; Thu, 30 May 2019 15:43:13 -0300 Date: Thu, 30 May 2019 15:43:13 -0300 From: Jason Gunthorpe To: "Gustavo A. R. Silva" Cc: Dennis Dalessandro , Mike Marciniszyn , Doug Ledford , linux-rdma@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH][next] IB/qib: Use struct_size() helper Message-ID: <20190530184313.GB29724@ziepe.ca> References: <20190529151326.GA24109@embeddedor> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190529151326.GA24109@embeddedor> User-Agent: Mutt/1.9.4 (2018-02-28) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, May 29, 2019 at 10:13:26AM -0500, Gustavo A. R. Silva wrote: > Make use of the struct_size() helper instead of an open-coded version > in order to avoid any potential type mistakes, in particular in the > context in which this code is being used. > > So, replace the following form: > > sizeof(*pkt) + sizeof(pkt->addr[0])*n > > with: > > struct_size(pkt, addr, n) > > Also, notice that variable size is unnecessary, hence it is removed. > > This code was detected with the help of Coccinelle. > > Signed-off-by: Gustavo A. R. Silva > Reviewed-by: Dennis Dalessandro > --- > drivers/infiniband/hw/qib/qib_user_sdma.c | 5 +++-- > 1 file changed, 3 insertions(+), 2 deletions(-) Applied to for-next, thanks Jason