Hello Joao Pinto,
The patch 54139cf3bb33: "net: stmmac: adding multiple buffers for rx"
from Apr 6, 2017, leads to the following static checker warning:
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c:1274 init_dma_rx_desc_rings()
warn: always true condition '(queue >= 0) => (0-u32max >= 0)'
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
1270
1271 return 0;
1272
1273 err_init_rx_buffers:
1274 while (queue >= 0) {
^^^^^^^^^^
This is harmless because of the break statement later, but slightly
annoying because of the static checker warning.
1275 while (--i >= 0)
1276 stmmac_free_rx_buffer(priv, queue, i);
1277
1278 if (queue == 0)
1279 break;
1280
1281 i = DMA_RX_SIZE;
1282 queue--;
1283 }
1284
1285 return ret;
1286 }
regards,
dan carpenter
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