* [PATCH net-next] sfc: farch: fix compile warning in efx_farch_dimension_resources()
@ 2021-05-18 13:17 Yang Yingliang
2021-05-18 14:26 ` Edward Cree
0 siblings, 1 reply; 2+ messages in thread
From: Yang Yingliang @ 2021-05-18 13:17 UTC (permalink / raw)
To: linux-kernel, netdev; +Cc: davem, ecree.xilinx
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 <yangyingliang@huawei.com>
---
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
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;
--
2.25.1
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH net-next] sfc: farch: fix compile warning in efx_farch_dimension_resources()
2021-05-18 13:17 [PATCH net-next] sfc: farch: fix compile warning in efx_farch_dimension_resources() Yang Yingliang
@ 2021-05-18 14:26 ` Edward Cree
0 siblings, 0 replies; 2+ messages in thread
From: Edward Cree @ 2021-05-18 14:26 UTC (permalink / raw)
To: Yang Yingliang, linux-kernel, netdev; +Cc: davem
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 <yangyingliang@huawei.com>
> ---
> 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;
>
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