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| author | Eliot Courtney <ecourtney@nvidia.com> | 2026-01-29 16:45:01 +0900 |
|---|---|---|
| committer | Alexandre Courbot <acourbot@nvidia.com> | 2026-02-25 08:16:55 +0900 |
| commit | f6f072d8ef06ff5d29a6bb1bade3da29a1aafeec (patch) | |
| tree | 95c8f277a0c5cee8f7d8649400c9ac5bef26ae75 /drivers/gpu | |
| parent | bbe6831c02d8a381d0858382597b0bea3252fd6a (diff) | |
| download | linux-f6f072d8ef06ff5d29a6bb1bade3da29a1aafeec.tar.gz linux-f6f072d8ef06ff5d29a6bb1bade3da29a1aafeec.zip | |
gpu: nova-core: gsp: use empty slices instead of [0..0] ranges
The current code unnecessarily uses, for example, &before_rx[0..0] to
return an empty slice. Instead, just use an empty slice.
Signed-off-by: Eliot Courtney <ecourtney@nvidia.com>
Reviewed-by: Gary Guo <gary@garyguo.net>
Link: https://patch.msgid.link/20260129-nova-core-cmdq1-v3-3-2ede85493a27@nvidia.com
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/nova-core/gsp/cmdq.rs | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/gpu/nova-core/gsp/cmdq.rs b/drivers/gpu/nova-core/gsp/cmdq.rs index 0743597779f1..b88ff8ebc098 100644 --- a/drivers/gpu/nova-core/gsp/cmdq.rs +++ b/drivers/gpu/nova-core/gsp/cmdq.rs @@ -232,7 +232,7 @@ impl DmaGspMem { // to `rx`, minus one unit, belongs to the driver. if rx == 0 { let last = after_tx.len() - 1; - (&mut after_tx[..last], &mut before_tx[0..0]) + (&mut after_tx[..last], &mut []) } else { (after_tx, &mut before_tx[..rx]) } @@ -241,7 +241,7 @@ impl DmaGspMem { // // PANIC: per the invariants of `cpu_write_ptr` and `gsp_read_ptr`, `rx` and `tx` are // `<= MSGQ_NUM_PAGES`, and the test above ensured that `rx > tx`. - (after_tx.split_at_mut(rx - tx).0, &mut before_tx[0..0]) + (after_tx.split_at_mut(rx - tx).0, &mut []) } } @@ -263,8 +263,8 @@ impl DmaGspMem { let (before_rx, after_rx) = gsp_mem.gspq.msgq.data.split_at(rx); match tx.cmp(&rx) { - cmp::Ordering::Equal => (&after_rx[0..0], &after_rx[0..0]), - cmp::Ordering::Greater => (&after_rx[..tx], &before_rx[0..0]), + cmp::Ordering::Equal => (&[], &[]), + cmp::Ordering::Greater => (&after_rx[..tx], &[]), cmp::Ordering::Less => (after_rx, &before_rx[..tx]), } } |