linux-kernel - [PATCH 4.14 113/189] IB/hfi1 Use correct type for num_user

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Message-Id: <20180618081213.798229505@linuxfoundation.org>
Date:   Mon, 18 Jun 2018 10:13:29 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org,
        Dennis Dalessandro <dennis.dalessandro@...el.com>,
        "Michael J. Ruhl" <michael.j.ruhl@...el.com>,
        Doug Ledford <dledford@...hat.com>,
        Sasha Levin <alexander.levin@...rosoft.com>
Subject: [PATCH 4.14 113/189] IB/hfi1 Use correct type for num_user_context

4.14-stable review patch.  If anyone has any objections, please let me know.

------------------

From: "Michael J. Ruhl" <michael.j.ruhl@...el.com>

[ Upstream commit 5da9e742be44d9b7c68b1bf6e1aaf46a1aa7a52b ]

The module parameter num_user_context is defined as 'int' and
defaults to -1.  The module_param_named() says that it is uint.

Correct module_param_named() type information and update the modinfo
text to reflect the default value.

Reviewed-by: Dennis Dalessandro <dennis.dalessandro@...el.com>
Signed-off-by: Michael J. Ruhl <michael.j.ruhl@...el.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@...el.com>
Signed-off-by: Doug Ledford <dledford@...hat.com>
Signed-off-by: Sasha Levin <alexander.levin@...rosoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/infiniband/hw/hfi1/init.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/infiniband/hw/hfi1/init.c
+++ b/drivers/infiniband/hw/hfi1/init.c
@@ -88,9 +88,9 @@
  * pio buffers per ctxt, etc.)  Zero means use one user context per CPU.
  */
 int num_user_contexts = -1;
-module_param_named(num_user_contexts, num_user_contexts, uint, S_IRUGO);
+module_param_named(num_user_contexts, num_user_contexts, int, 0444);
 MODULE_PARM_DESC(
-	num_user_contexts, "Set max number of user contexts to use");
+	num_user_contexts, "Set max number of user contexts to use (default: -1 will use the real (non-HT) CPU count)");
 
 uint krcvqs[RXE_NUM_DATA_VL];
 int krcvqsset;