There's an ongoing effort to remove VLAs[1] from the kernel to eventually
turn on -Wvla. Switch to a constant value that covers all hardware.

[1] https://lkml.org/lkml/2018/3/7/621

Signed-off-by: Laura Abbott <labb...@redhat.com>
---
v2: Switch to a larger size to account for other hardware
---
 drivers/gpu/drm/amd/amdkfd/kfd_interrupt.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_interrupt.c 
b/drivers/gpu/drm/amd/amdkfd/kfd_interrupt.c
index 035c351f47c5..c3a5a80e31ae 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_interrupt.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_interrupt.c
@@ -139,10 +139,12 @@ static void interrupt_wq(struct work_struct *work)
 {
        struct kfd_dev *dev = container_of(work, struct kfd_dev,
                                                interrupt_work);
+       uint32_t ih_ring_entry[8];
 
-       uint32_t ih_ring_entry[DIV_ROUND_UP(
-                               dev->device_info->ih_ring_entry_size,
-                               sizeof(uint32_t))];
+       if (dev->device_info->ih_ring_entry_size > (8 * sizeof(uint32_t))) {
+               dev_err(kfd_chardev(), "Ring entry too small\n");
+               return;
+       }
 
        while (dequeue_ih_ring_entry(dev, ih_ring_entry))
                dev->device_info->event_interrupt_class->interrupt_wq(dev,
-- 
2.14.3

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