From: Grzegorz Andrejczuk <grzegorz.andrejczuk@intel.com>
Date: Mon, 6 Jan 2020 08:42:22 -0500
Subject: IB/hfi1: Return void in packet receiving functions
Patch-mainline: v5.6-rc1
Git-commit: d791d294edd2f96e5200882f789e8cb4ed431991
References: jsc#SLE-8449

Packet receiving functions returns int value, and yet the return values
are not used at all.

This patch converts the functions to return void.

Link: https://lore.kernel.org/r/20200106134222.119356.84098.stgit@awfm-01.aw.intel.com
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Grzegorz Andrejczuk <grzegorz.andrejczuk@intel.com>
Signed-off-by: Kaike Wan <kaike.wan@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/infiniband/hw/hfi1/driver.c |   41 ++++++++++++++----------------------
 drivers/infiniband/hw/hfi1/hfi.h    |    2 -
 2 files changed, 18 insertions(+), 25 deletions(-)

--- a/drivers/infiniband/hw/hfi1/driver.c
+++ b/drivers/infiniband/hw/hfi1/driver.c
@@ -1553,23 +1553,22 @@ void handle_eflags(struct hfi1_packet *p
  * The following functions are called by the interrupt handler. They are type
  * specific handlers for each packet type.
  */
-static int process_receive_ib(struct hfi1_packet *packet)
+static void process_receive_ib(struct hfi1_packet *packet)
 {
 	if (hfi1_setup_9B_packet(packet))
-		return RHF_RCV_CONTINUE;
+		return;
 
 	if (unlikely(hfi1_dbg_should_fault_rx(packet)))
-		return RHF_RCV_CONTINUE;
+		return;
 
 	trace_hfi1_rcvhdr(packet);
 
 	if (unlikely(rhf_err_flags(packet->rhf))) {
 		handle_eflags(packet);
-		return RHF_RCV_CONTINUE;
+		return;
 	}
 
 	hfi1_ib_rcv(packet);
-	return RHF_RCV_CONTINUE;
 }
 
 static inline bool hfi1_is_vnic_packet(struct hfi1_packet *packet)
@@ -1585,23 +1584,23 @@ static inline bool hfi1_is_vnic_packet(s
 	return false;
 }
 
-static int process_receive_bypass(struct hfi1_packet *packet)
+static void process_receive_bypass(struct hfi1_packet *packet)
 {
 	struct hfi1_devdata *dd = packet->rcd->dd;
 
 	if (hfi1_is_vnic_packet(packet)) {
 		hfi1_vnic_bypass_rcv(packet);
-		return RHF_RCV_CONTINUE;
+		return;
 	}
 
 	if (hfi1_setup_bypass_packet(packet))
-		return RHF_RCV_CONTINUE;
+		return;
 
 	trace_hfi1_rcvhdr(packet);
 
 	if (unlikely(rhf_err_flags(packet->rhf))) {
 		handle_eflags(packet);
-		return RHF_RCV_CONTINUE;
+		return;
 	}
 
 	if (hfi1_16B_get_l2(packet->hdr) == 0x2) {
@@ -1624,17 +1623,16 @@ static int process_receive_bypass(struct
 				(OPA_EI_STATUS_SMASK | BAD_L2_ERR);
 		}
 	}
-	return RHF_RCV_CONTINUE;
 }
 
-static int process_receive_error(struct hfi1_packet *packet)
+static void process_receive_error(struct hfi1_packet *packet)
 {
 	/* KHdrHCRCErr -- KDETH packet with a bad HCRC */
 	if (unlikely(
 		 hfi1_dbg_fault_suppress_err(&packet->rcd->dd->verbs_dev) &&
 		 (rhf_rcv_type_err(packet->rhf) == RHF_RCV_TYPE_ERROR ||
 		  packet->rhf & RHF_DC_ERR)))
-		return RHF_RCV_CONTINUE;
+		return;
 
 	hfi1_setup_ib_header(packet);
 	handle_eflags(packet);
@@ -1642,32 +1640,29 @@ static int process_receive_error(struct
 	if (unlikely(rhf_err_flags(packet->rhf)))
 		dd_dev_err(packet->rcd->dd,
 			   "Unhandled error packet received. Dropping.\n");
-
-	return RHF_RCV_CONTINUE;
 }
 
-static int kdeth_process_expected(struct hfi1_packet *packet)
+static void kdeth_process_expected(struct hfi1_packet *packet)
 {
 	hfi1_setup_9B_packet(packet);
 	if (unlikely(hfi1_dbg_should_fault_rx(packet)))
-		return RHF_RCV_CONTINUE;
+		return;
 
 	if (unlikely(rhf_err_flags(packet->rhf))) {
 		struct hfi1_ctxtdata *rcd = packet->rcd;
 
 		if (hfi1_handle_kdeth_eflags(rcd, rcd->ppd, packet))
-			return RHF_RCV_CONTINUE;
+			return;
 	}
 
 	hfi1_kdeth_expected_rcv(packet);
-	return RHF_RCV_CONTINUE;
 }
 
-static int kdeth_process_eager(struct hfi1_packet *packet)
+static void kdeth_process_eager(struct hfi1_packet *packet)
 {
 	hfi1_setup_9B_packet(packet);
 	if (unlikely(hfi1_dbg_should_fault_rx(packet)))
-		return RHF_RCV_CONTINUE;
+		return;
 
 	trace_hfi1_rcvhdr(packet);
 	if (unlikely(rhf_err_flags(packet->rhf))) {
@@ -1675,18 +1670,16 @@ static int kdeth_process_eager(struct hf
 
 		show_eflags_errs(packet);
 		if (hfi1_handle_kdeth_eflags(rcd, rcd->ppd, packet))
-			return RHF_RCV_CONTINUE;
+			return;
 	}
 
 	hfi1_kdeth_eager_rcv(packet);
-	return RHF_RCV_CONTINUE;
 }
 
-static int process_receive_invalid(struct hfi1_packet *packet)
+static void process_receive_invalid(struct hfi1_packet *packet)
 {
 	dd_dev_err(packet->rcd->dd, "Invalid packet type %d. Dropping\n",
 		   rhf_rcv_type(packet->rhf));
-	return RHF_RCV_CONTINUE;
 }
 
 #define HFI1_RCVHDR_DUMP_MAX	5
--- a/drivers/infiniband/hw/hfi1/hfi.h
+++ b/drivers/infiniband/hw/hfi1/hfi.h
@@ -199,7 +199,7 @@ struct exp_tid_set {
 
 struct hfi1_ctxtdata;
 typedef int (*intr_handler)(struct hfi1_ctxtdata *rcd, int data);
-typedef int (*rhf_rcv_function_ptr)(struct hfi1_packet *packet);
+typedef void (*rhf_rcv_function_ptr)(struct hfi1_packet *packet);
 
 struct tid_queue {
 	struct list_head queue_head;