Am 05.05.20 um 16:01 schrieb Arnd Bergmann:
After the structure was padded to 1024 bytes, it is no longer
suitable for being a local variable, as the function surpasses
the warning limit for 32-bit architectures:
drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c:587:5: error: stack frame size of 1072 bytes in function 'amdgpu_ras_feature_enable' [-Werror,-Wframe-larger-than=]
int amdgpu_ras_feature_enable(struct amdgpu_device *adev,
^
Use kzalloc() instead to get it from the heap.
Fixes: a0d254820f43 ("drm/amdgpu: update RAS TA to Host interface")
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Acked-by: Christian König <christian.koenig@xxxxxxx>
We have a bunch of those warnings in the DAL code as well.
Christian.
---
drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c | 31 +++++++++++++++++--------
1 file changed, 21 insertions(+), 10 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
index 538895cfd862..7348619253c7 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c
@@ -588,19 +588,23 @@ int amdgpu_ras_feature_enable(struct amdgpu_device *adev,
struct ras_common_if *head, bool enable)
{
struct amdgpu_ras *con = amdgpu_ras_get_context(adev);
- union ta_ras_cmd_input info;
+ union ta_ras_cmd_input *info;
int ret;
if (!con)
return -EINVAL;
+ info = kzalloc(sizeof(union ta_ras_cmd_input), GFP_KERNEL);
+ if (!info)
+ return -ENOMEM;
+
if (!enable) {
- info.disable_features = (struct ta_ras_disable_features_input) {
+ info->disable_features = (struct ta_ras_disable_features_input) {
.block_id = amdgpu_ras_block_to_ta(head->block),
.error_type = amdgpu_ras_error_to_ta(head->type),
};
} else {
- info.enable_features = (struct ta_ras_enable_features_input) {
+ info->enable_features = (struct ta_ras_enable_features_input) {
.block_id = amdgpu_ras_block_to_ta(head->block),
.error_type = amdgpu_ras_error_to_ta(head->type),
};
@@ -609,26 +613,33 @@ int amdgpu_ras_feature_enable(struct amdgpu_device *adev,
/* Do not enable if it is not allowed. */
WARN_ON(enable && !amdgpu_ras_is_feature_allowed(adev, head));
/* Are we alerady in that state we are going to set? */
- if (!(!!enable ^ !!amdgpu_ras_is_feature_enabled(adev, head)))
- return 0;
+ if (!(!!enable ^ !!amdgpu_ras_is_feature_enabled(adev, head))) {
+ ret = 0;
+ goto out;
+ }
if (!amdgpu_ras_intr_triggered()) {
- ret = psp_ras_enable_features(&adev->psp, &info, enable);
+ ret = psp_ras_enable_features(&adev->psp, info, enable);
if (ret) {
amdgpu_ras_parse_status_code(adev,
enable ? "enable":"disable",
ras_block_str(head->block),
(enum ta_ras_status)ret);
if (ret == TA_RAS_STATUS__RESET_NEEDED)
- return -EAGAIN;
- return -EINVAL;
+ ret = -EAGAIN;
+ else
+ ret = -EINVAL;
+
+ goto out;
}
}
/* setup the obj */
__amdgpu_ras_feature_enable(adev, head, enable);
-
- return 0;
+ ret = 0;
+out:
+ kfree(info);
+ return ret;
}
/* Only used in device probe stage and called only once. */
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