sfc: Remove redundant writes to INT_ADR_KER

This register only needs to be written after reset, not each time we
enable interrupts.

Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/sfc/falcon.c b/drivers/net/sfc/falcon.c
index 2f219ce..b7e9238 100644 (file)
--- a/drivers/net/sfc/falcon.c
+++ b/drivers/net/sfc/falcon.c
@@ -1290,19 +1290,11 @@ static inline void falcon_interrupts(struct efx_nic *efx, int enabled,
 
 void falcon_enable_interrupts(struct efx_nic *efx)
 {
-       efx_oword_t int_adr_reg_ker;
        struct efx_channel *channel;
 
        EFX_ZERO_OWORD(*((efx_oword_t *) efx->irq_status.addr));
        wmb(); /* Ensure interrupt vector is clear before interrupts enabled */
 
-       /* Program address */
-       EFX_POPULATE_OWORD_2(int_adr_reg_ker,
-                            FRF_AZ_NORM_INT_VEC_DIS_KER,
-                            EFX_INT_MODE_USE_MSI(efx),
-                            FRF_AZ_INT_ADR_KER, efx->irq_status.dma_addr);
-       efx_writeo(efx, &int_adr_reg_ker, FR_AZ_INT_ADR_KER);
-
        /* Enable interrupts */
        falcon_interrupts(efx, 1, 0);
 
@@ -3061,6 +3053,13 @@ int falcon_init_nic(struct efx_nic *efx)
        EFX_POPULATE_OWORD_1(temp, FRF_AZ_RX_DC_PF_LWM, RX_DC_ENTRIES - 8);
        efx_writeo(efx, &temp, FR_AZ_RX_DC_PF_WM);
 
+       /* Program INT_KER address */
+       EFX_POPULATE_OWORD_2(temp,
+                            FRF_AZ_NORM_INT_VEC_DIS_KER,
+                            EFX_INT_MODE_USE_MSI(efx),
+                            FRF_AZ_INT_ADR_KER, efx->irq_status.dma_addr);
+       efx_writeo(efx, &temp, FR_AZ_INT_ADR_KER);
+
        /* Clear the parity enables on the TX data fifos as
         * they produce false parity errors because of timing issues
         */