[PATCH net-next 04/11] bnxt_en: Avoid arithmetic on void * pointer.

[Michael Chan]

From: Venkat Duvvuru <venkatkumar.duvv...@broadcom.com>

Typecast hwrm_cmd_resp_addr to (u8 *) from (void *) before doing
arithmetic.

Signed-off-by: Venkat Duvvuru <venkatkumar.duvv...@broadcom.com>
Signed-off-by: Michael Chan <michael.c...@broadcom.com>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c 
b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index 945e78b..079e1ee 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -3756,6 +3756,7 @@ static int bnxt_hwrm_do_send_msg(struct bnxt *bp, void 
*msg, u32 msg_len,
        u16 max_req_len = BNXT_HWRM_MAX_REQ_LEN;
        struct hwrm_short_input short_input = {0};
        u32 doorbell_offset = BNXT_GRCPF_REG_CHIMP_COMM_TRIGGER;
+       u8 *resp_addr = (u8 *)bp->hwrm_cmd_resp_addr;
        u32 bar_offset = BNXT_GRCPF_REG_CHIMP_COMM;
 
        req->seq_id = cpu_to_le16(bp->hwrm_cmd_seq++);
@@ -3827,7 +3828,8 @@ static int bnxt_hwrm_do_send_msg(struct bnxt *bp, void 
*msg, u32 msg_len,
        tmo_count = HWRM_SHORT_TIMEOUT_COUNTER;
        timeout = timeout - HWRM_SHORT_MIN_TIMEOUT * HWRM_SHORT_TIMEOUT_COUNTER;
        tmo_count += DIV_ROUND_UP(timeout, HWRM_MIN_TIMEOUT);
-       resp_len = bp->hwrm_cmd_resp_addr + HWRM_RESP_LEN_OFFSET;
+       resp_len = (__le32 *)(resp_addr + HWRM_RESP_LEN_OFFSET);
+
        if (intr_process) {
                u16 seq_id = bp->hwrm_intr_seq_id;
 
@@ -3850,7 +3852,7 @@ static int bnxt_hwrm_do_send_msg(struct bnxt *bp, void 
*msg, u32 msg_len,
                }
                len = (le32_to_cpu(*resp_len) & HWRM_RESP_LEN_MASK) >>
                      HWRM_RESP_LEN_SFT;
-               valid = bp->hwrm_cmd_resp_addr + len - 1;
+               valid = resp_addr + len - 1;
        } else {
                int j;
 
@@ -3878,7 +3880,7 @@ static int bnxt_hwrm_do_send_msg(struct bnxt *bp, void 
*msg, u32 msg_len,
                }
 
                /* Last byte of resp contains valid bit */
-               valid = bp->hwrm_cmd_resp_addr + len - 1;
+               valid = resp_addr + len - 1;
                for (j = 0; j < HWRM_VALID_BIT_DELAY_USEC; j++) {
                        /* make sure we read from updated DMA memory */
                        dma_rmb();
-- 
2.5.1