[PATCH 5/6] gpu: nova-core: Clarify fields in FalconAppifHdrV1

[Joel Fernandes <joelagnelf@nvidia.com>]

Signed-off-by: Joel Fernandes <joelagnelf@nvidia.com>
---
 drivers/gpu/nova-core/firmware/fwsec.rs | 17 ++++++++++-------
 1 file changed, 10 insertions(+), 7 deletions(-)

diff --git a/drivers/gpu/nova-core/firmware/fwsec.rs b/drivers/gpu/nova-core/firmware/fwsec.rs
index 664319d1d31c..79c21db9d89d 100644
--- a/drivers/gpu/nova-core/firmware/fwsec.rs
+++ b/drivers/gpu/nova-core/firmware/fwsec.rs
@@ -29,11 +29,14 @@
 
 #[repr(C)]
 #[derive(Debug)]
+
+/// The header of the Application Interface table, used
+/// to locate the DMEMMAPPER section in the DMEM (see fwsec.rst).
 struct FalconAppifHdrV1 {
-    ver: u8,
-    hdr: u8,
-    len: u8,
-    cnt: u8,
+    version: u8,
+    header_size: u8,
+    entry_size: u8,
+    entry_count: u8,
 }
 // SAFETY: any byte sequence is valid for this struct.
 unsafe impl FromBytes for FalconAppifHdrV1 {}
@@ -169,14 +172,14 @@ fn patch_command(fw: &mut DmaObject, v3_desc: &FalconUCodeDescV3, cmd: FwsecComm
     let hdr_offset = (v3_desc.imem_load_size + v3_desc.interface_offset) as usize;
     let hdr: &FalconAppifHdrV1 = unsafe { transmute(fw, hdr_offset) }?;
 
-    if hdr.ver != 1 {
+    if hdr.version != 1 {
         return Err(EINVAL);
     }
 
     // Find the DMEM mapper section in the firmware.
-    for i in 0..hdr.cnt as usize {
+    for i in 0..hdr.entry_count as usize {
         let app: &FalconAppifV1 =
-            unsafe { transmute(fw, hdr_offset + hdr.hdr as usize + i * hdr.len as usize) }?;
+            unsafe { transmute(fw, hdr_offset + hdr.header_size as usize + i * hdr.entry_size as usize) }?;
 
         if app.id != NVFW_FALCON_APPIF_ID_DMEMMAPPER {
             continue;
-- 
2.43.0