linux-kernel - [PATCH] gpu: drm: qxl: Adding new typedef vm_fault

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Message-ID: <20180417133844.GA30256@jordon-HP-15-Notebook-PC>
Date:   Tue, 17 Apr 2018 19:08:44 +0530
From:   Souptick Joarder <jrdr.linux@...il.com>
To:     airlied@...hat.com, kraxel@...hat.com, airlied@...ux.ie
Cc:     virtualization@...ts.linux-foundation.org,
        dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org,
        willy@...radead.org
Subject: [PATCH] gpu: drm: qxl: Adding new typedef vm_fault_t

Use new return type vm_fault_t for fault handler. For
now, this is just documenting that the function returns
a VM_FAULT value rather than an errno. Once all instances
are converted, vm_fault_t will become a distinct type.

Reference id -> 1c8f422059ae ("mm: change return type to
vm_fault_t")

Signed-off-by: Souptick Joarder <jrdr.linux@...il.com>
---
 drivers/gpu/drm/qxl/qxl_ttm.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/qxl/qxl_ttm.c b/drivers/gpu/drm/qxl/qxl_ttm.c
index 59cd74c..0b482b1 100644
--- a/drivers/gpu/drm/qxl/qxl_ttm.c
+++ b/drivers/gpu/drm/qxl/qxl_ttm.c
@@ -105,16 +105,16 @@ static void qxl_ttm_global_fini(struct qxl_device *qdev)
 static struct vm_operations_struct qxl_ttm_vm_ops;
 static const struct vm_operations_struct *ttm_vm_ops;
 
-static int qxl_ttm_fault(struct vm_fault *vmf)
+static vm_fault_t qxl_ttm_fault(struct vm_fault *vmf)
 {
 	struct ttm_buffer_object *bo;
-	int r;
+	vm_fault_t ret;
 
 	bo = (struct ttm_buffer_object *)vmf->vma->vm_private_data;
 	if (bo == NULL)
 		return VM_FAULT_NOPAGE;
-	r = ttm_vm_ops->fault(vmf);
-	return r;
+	ret = ttm_vm_ops->fault(vmf);
+	return ret;
 }
 
 int qxl_mmap(struct file *filp, struct vm_area_struct *vma)
-- 
1.9.1