net/sfc: decrease number of variables maintained on EF10 Rx

[dpdk.git] / drivers / net / sfc / base / ef10_mcdi.c

diff --git a/drivers/net/sfc/base/ef10_mcdi.c b/drivers/net/sfc/base/ef10_mcdi.c
index b533033..8a3fc3b 100644 (file)
--- a/drivers/net/sfc/base/ef10_mcdi.c
+++ b/drivers/net/sfc/base/ef10_mcdi.c
@@ -188,13 +188,17 @@ ef10_mcdi_read_response(
 {
        const efx_mcdi_transport_t *emtp = enp->en_mcdi.em_emtp;
        efsys_mem_t *esmp = emtp->emt_dma_mem;
-       unsigned int pos;
+       unsigned int pos = 0;
        efx_dword_t data;
+       size_t remaining = length;
+
+       while (remaining > 0) {
+               size_t chunk = MIN(remaining, sizeof (data));
 
-       for (pos = 0; pos < length; pos += sizeof (efx_dword_t)) {
                EFSYS_MEM_READD(esmp, offset + pos, &data);
-               memcpy((uint8_t *)bufferp + pos, &data,
-                   MIN(sizeof (data), length - pos));
+               memcpy((uint8_t *)bufferp + pos, &data, chunk);
+               pos += chunk;
+               remaining -= chunk;
        }
 }