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authorPeter Colberg <peter.colberg@intel.com>2024-11-19 20:10:27 -0500
committerXu Yilun <yilun.xu@linux.intel.com>2024-12-18 22:28:48 +0800
commitb3245f700ae2e9f0ecbcf36b8908f6460db91202 (patch)
tree35c087a581b3dbe3f86a5488a2ee38b9da29112f
parent39ea74e33edc034831ed19902bfc17354c8fc8db (diff)
fpga: dfl: convert features from flexible array member to separate array
Use a separate array allocation for features and substitute a pointer for the flexible array member in the feature device data. A subsequent commit will add another array for resources. The current commit converts the flexible array member to a separate allocation for consistency. Signed-off-by: Peter Colberg <peter.colberg@intel.com> Reviewed-by: Matthew Gerlach <matthew.gerlach@linux.intel.com> Reviewed-by: Basheer Ahmed Muddebihal <basheer.ahmed.muddebihal@linux.intel.com> Acked-by: Xu Yilun <yilun.xu@intel.com> Link: https://lore.kernel.org/r/20241120011035.230574-12-peter.colberg@intel.com Signed-off-by: Xu Yilun <yilun.xu@linux.intel.com>
-rw-r--r--drivers/fpga/dfl.c7
-rw-r--r--drivers/fpga/dfl.h2
2 files changed, 7 insertions, 2 deletions
diff --git a/drivers/fpga/dfl.c b/drivers/fpga/dfl.c
index 1d1f2330beef..3015dfc1d552 100644
--- a/drivers/fpga/dfl.c
+++ b/drivers/fpga/dfl.c
@@ -752,10 +752,15 @@ binfo_create_feature_dev_data(struct build_feature_devs_info *binfo)
if (WARN_ON_ONCE(type >= DFL_ID_MAX))
return ERR_PTR(-EINVAL);
- fdata = devm_kzalloc(binfo->dev, struct_size(fdata, features, binfo->feature_num), GFP_KERNEL);
+ fdata = devm_kzalloc(binfo->dev, sizeof(*fdata), GFP_KERNEL);
if (!fdata)
return ERR_PTR(-ENOMEM);
+ fdata->features = devm_kcalloc(binfo->dev, binfo->feature_num,
+ sizeof(*fdata->features), GFP_KERNEL);
+ if (!fdata->features)
+ return ERR_PTR(-ENOMEM);
+
fdata->dev = fdev;
fdata->type = type;
fdata->num = binfo->feature_num;
diff --git a/drivers/fpga/dfl.h b/drivers/fpga/dfl.h
index bcbdfcdb9742..d2765555e109 100644
--- a/drivers/fpga/dfl.h
+++ b/drivers/fpga/dfl.h
@@ -330,7 +330,7 @@ struct dfl_feature_dev_data {
int open_count;
void *private;
int num;
- struct dfl_feature features[];
+ struct dfl_feature *features;
};
/**