From 070740d389aa6baff32f2fa3593034675bf56d16 Mon Sep 17 00:00:00 2001 From: Alex Elder Date: Tue, 26 Jan 2021 12:57:03 -0600 Subject: net: ipa: don't pass size to ipa_cmd_transfer_add() The only time we transfer data (rather than issuing a command) out of the AP->command TX endpoint is when we're clearing the hardware pipeline. All that's needed is a "small" data buffer, and its contents aren't even important. For convenience, we just transfer a command structure in this case (it's already mapped for DMA). The TRE is added to a transaction using ipa_cmd_ip_tag_status_add(), but we ignore the size value provided to that function. So just get rid of the size argument. Signed-off-by: Alex Elder Acked-by: Willem de Bruijn Signed-off-by: Jakub Kicinski --- drivers/net/ipa/ipa_cmd.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) (limited to 'drivers/net/ipa') diff --git a/drivers/net/ipa/ipa_cmd.c b/drivers/net/ipa/ipa_cmd.c index eb50e7437359..97b50fee6008 100644 --- a/drivers/net/ipa/ipa_cmd.c +++ b/drivers/net/ipa/ipa_cmd.c @@ -550,7 +550,7 @@ static void ipa_cmd_ip_tag_status_add(struct gsi_trans *trans) } /* Issue a small command TX data transfer */ -static void ipa_cmd_transfer_add(struct gsi_trans *trans, u16 size) +static void ipa_cmd_transfer_add(struct gsi_trans *trans) { struct ipa *ipa = container_of(trans->gsi, struct ipa, gsi); enum dma_data_direction direction = DMA_TO_DEVICE; @@ -558,8 +558,6 @@ static void ipa_cmd_transfer_add(struct gsi_trans *trans, u16 size) union ipa_cmd_payload *payload; dma_addr_t payload_addr; - /* assert(size <= sizeof(*payload)); */ - /* Just transfer a zero-filled payload structure */ payload = ipa_cmd_payload_alloc(ipa, &payload_addr); @@ -590,7 +588,7 @@ void ipa_cmd_pipeline_clear_add(struct gsi_trans *trans) endpoint = ipa->name_map[IPA_ENDPOINT_AP_LAN_RX]; ipa_cmd_ip_packet_init_add(trans, endpoint->endpoint_id); ipa_cmd_ip_tag_status_add(trans); - ipa_cmd_transfer_add(trans, 4); + ipa_cmd_transfer_add(trans); } /* Returns the number of commands required to clear the pipeline */ -- cgit v1.2.3