From f41ca13059858dd5f06c3e0563ca08bf72116276 Mon Sep 17 00:00:00 2001 From: Laura Abbott Date: Fri, 13 Apr 2018 14:24:12 -0700 Subject: [PATCH 5692/5725] drm/amdkfd: Remove vla MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit 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 Reviewed-by: Felix Kuehling Acked-by: Christian König Signed-off-by: Laura Abbott Signed-off-by: Oded Gabbay --- drivers/gpu/drm/amd/amdkfd/kfd_interrupt.c | 8 +++++--- drivers/gpu/drm/amd/amdkfd/kfd_priv.h | 2 ++ 2 files changed, 7 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_interrupt.c b/drivers/gpu/drm/amd/amdkfd/kfd_interrupt.c index cda36c8..c56ac47 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[KFD_MAX_RING_ENTRY_SIZE]; - 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 > sizeof(ih_ring_entry)) { + dev_err_once(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, diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h index be46966..a21bab4 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h +++ b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h @@ -41,6 +41,8 @@ #include "amd_shared.h" +#define KFD_MAX_RING_ENTRY_SIZE 8 + #define KFD_SYSFS_FILE_MODE 0444 /* GPU ID hash width in bits */ -- 2.7.4