From: Grzegorz Morys <grzegorz.morys@intel.com>
Date: Mon, 21 Aug 2017 18:26:38 -0700
Subject: IB/hfi1: Ratelimit prints from sdma_interrupt
Patch-mainline: v4.14-rc1
Git-commit: de42de80d7bb4f82e30d16f5c64da90e64b6c644
References: bsc#1060463 FATE#323043

Ratelimit error prints from sdma_interrupt function
that could swarm dmesg otherwise.

Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Grzegorz Morys <grzegorz.morys@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Acked-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
---
 drivers/infiniband/hw/hfi1/chip.c |    4 ++--
 drivers/infiniband/hw/hfi1/hfi.h  |    6 ++++++
 2 files changed, 8 insertions(+), 2 deletions(-)

--- a/drivers/infiniband/hw/hfi1/chip.c
+++ b/drivers/infiniband/hw/hfi1/chip.c
@@ -8290,8 +8290,8 @@ static irqreturn_t sdma_interrupt(int ir
 		/* handle the interrupt(s) */
 		sdma_engine_interrupt(sde, status);
 	} else {
-		dd_dev_err(dd, "SDMA engine %u interrupt, but no status bits set\n",
-			   sde->this_idx);
+		dd_dev_err_ratelimited(dd, "SDMA engine %u interrupt, but no status bits set\n",
+				       sde->this_idx);
 	}
 	return IRQ_HANDLED;
 }
--- a/drivers/infiniband/hw/hfi1/hfi.h
+++ b/drivers/infiniband/hw/hfi1/hfi.h
@@ -2119,9 +2119,15 @@ static inline u64 hfi1_pkt_base_sdma_int
 #define dd_dev_emerg(dd, fmt, ...) \
 	dev_emerg(&(dd)->pcidev->dev, "%s: " fmt, \
 		  get_unit_name((dd)->unit), ##__VA_ARGS__)
+
 #define dd_dev_err(dd, fmt, ...) \
 	dev_err(&(dd)->pcidev->dev, "%s: " fmt, \
 			get_unit_name((dd)->unit), ##__VA_ARGS__)
+
+#define dd_dev_err_ratelimited(dd, fmt, ...) \
+	dev_err_ratelimited(&(dd)->pcidev->dev, "%s: " fmt, \
+			get_unit_name((dd)->unit), ##__VA_ARGS__)
+
 #define dd_dev_warn(dd, fmt, ...) \
 	dev_warn(&(dd)->pcidev->dev, "%s: " fmt, \
 			get_unit_name((dd)->unit), ##__VA_ARGS__)