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[86.7.189.148]) by smtp.gmail.com with ESMTPSA id h14sm27139750wrq.45.2021.05.18.07.26.28 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Tue, 18 May 2021 07:26:28 -0700 (PDT) Subject: Re: [PATCH net-next] sfc: farch: fix compile warning in efx_farch_dimension_resources() To: Yang Yingliang , linux-kernel@vger.kernel.org, netdev@vger.kernel.org Cc: davem@davemloft.net References: <20210518131711.1311363-1-yangyingliang@huawei.com> From: Edward Cree Message-ID: <471fea0e-fac0-3d05-b182-4aec57579b4b@gmail.com> Date: Tue, 18 May 2021 15:26:27 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.5.0 MIME-Version: 1.0 In-Reply-To: <20210518131711.1311363-1-yangyingliang@huawei.com> Content-Type: text/plain; charset=utf-8 Content-Language: en-GB Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 18/05/2021 14:17, Yang Yingliang wrote: > Fix the following kernel build warning when CONFIG_SFC_SRIOV is disabled: > > drivers/net/ethernet/sfc/farch.c: In function ‘efx_farch_dimension_resources’: > drivers/net/ethernet/sfc/farch.c:1671:21: warning: variable ‘buftbl_min’ set but not used [-Wunused-but-set-variable] > unsigned vi_count, buftbl_min, total_tx_channels; > > Signed-off-by: Yang Yingliang > --- > drivers/net/ethernet/sfc/farch.c | 9 +++++---- > 1 file changed, 5 insertions(+), 4 deletions(-) > > diff --git a/drivers/net/ethernet/sfc/farch.c b/drivers/net/ethernet/sfc/farch.c > index 49df02ecee91..0bd879bd73c7 100644 > --- a/drivers/net/ethernet/sfc/farch.c > +++ b/drivers/net/ethernet/sfc/farch.c > @@ -1668,13 +1668,17 @@ void efx_farch_rx_pull_indir_table(struct efx_nic *efx) > */ > void efx_farch_dimension_resources(struct efx_nic *efx, unsigned sram_lim_qw) > { > - unsigned vi_count, buftbl_min, total_tx_channels; > + unsigned vi_count, total_tx_channels; > > #ifdef CONFIG_SFC_SRIOV > + unsigned buftbl_min; > struct siena_nic_data *nic_data = efx->nic_data; > #endif Reverse xmas tree is messed up here, please fix. Apart from that, LGTM. -ed > > total_tx_channels = efx->n_tx_channels + efx->n_extra_tx_channels; > + vi_count = max(efx->n_channels, total_tx_channels * EFX_MAX_TXQ_PER_CHANNEL); > + > +#ifdef CONFIG_SFC_SRIOV > /* Account for the buffer table entries backing the datapath channels > * and the descriptor caches for those channels. > */ > @@ -1682,9 +1686,6 @@ void efx_farch_dimension_resources(struct efx_nic *efx, unsigned sram_lim_qw) > total_tx_channels * EFX_MAX_TXQ_PER_CHANNEL * EFX_MAX_DMAQ_SIZE + > efx->n_channels * EFX_MAX_EVQ_SIZE) > * sizeof(efx_qword_t) / EFX_BUF_SIZE); > - vi_count = max(efx->n_channels, total_tx_channels * EFX_MAX_TXQ_PER_CHANNEL); > - > -#ifdef CONFIG_SFC_SRIOV > if (efx->type->sriov_wanted) { > if (efx->type->sriov_wanted(efx)) { > unsigned vi_dc_entries, buftbl_free; >