diff options
| author | Mark Brown <broonie@kernel.org> | 2021-10-18 13:50:42 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2021-10-18 13:50:42 +0100 |
| commit | b8f3b564937c1f3529bc4897cc41c5d95d2cdbe9 (patch) | |
| tree | b71ed4906bbe2ca96d68dbf1d6d6f0fe2676f1de /drivers/fpga/dfl.c | |
| parent | 4e52cb9e2c22c9d860910794c82461064baadd9f (diff) | |
| parent | 519d81956ee277b4419c723adfb154603c2565ba (diff) | |
Merge tag 'v5.15-rc6' into asoc-5.16
Linux 5.15-rc6
Diffstat (limited to 'drivers/fpga/dfl.c')
| -rw-r--r-- | drivers/fpga/dfl.c | 14 |
1 files changed, 8 insertions, 6 deletions
diff --git a/drivers/fpga/dfl.c b/drivers/fpga/dfl.c index c99b78ee008a..f86666cf2c6a 100644 --- a/drivers/fpga/dfl.c +++ b/drivers/fpga/dfl.c @@ -1019,16 +1019,18 @@ create_feature_instance(struct build_feature_devs_info *binfo, { unsigned int irq_base, nr_irqs; struct dfl_feature_info *finfo; + u8 revision = 0; int ret; - u8 revision; u64 v; - v = readq(binfo->ioaddr + ofst); - revision = FIELD_GET(DFH_REVISION, v); + if (fid != FEATURE_ID_AFU) { + v = readq(binfo->ioaddr + ofst); + revision = FIELD_GET(DFH_REVISION, v); - /* read feature size and id if inputs are invalid */ - size = size ? size : feature_size(v); - fid = fid ? fid : feature_id(v); + /* read feature size and id if inputs are invalid */ + size = size ? size : feature_size(v); + fid = fid ? fid : feature_id(v); + } if (binfo->len - ofst < size) return -EINVAL; |