From 89455017fb8dd5dff0d088ecb82bccf9f9b715cd Mon Sep 17 00:00:00 2001 From: Venkat Duvvuru Date: Thu, 20 Dec 2018 03:38:46 -0500 Subject: [PATCH] bnxt_en: Avoid arithmetic on void * pointer. Typecast hwrm_cmd_resp_addr to (u8 *) from (void *) before doing arithmetic. Signed-off-by: Venkat Duvvuru Signed-off-by: Michael Chan Signed-off-by: David S. Miller --- 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 945e78b1d468..079e1eefe33b 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(); -- 2.30.2