netdev - [PATCH v3 1/3] rust: block: simplify Result<()> in validate_block

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Message-Id: <20241118-simplify-result-v3-1-6b1566a77eab@iiitd.ac.in>
Date: Mon, 18 Nov 2024 20:06:58 +0530
From: Manas via B4 Relay <devnull+manas18244.iiitd.ac.in@...nel.org>
To: FUJITA Tomonori <fujita.tomonori@...il.com>, 
 Trevor Gross <tmgross@...ch.edu>, Andrew Lunn <andrew@...n.ch>, 
 Heiner Kallweit <hkallweit1@...il.com>, 
 Russell King <linux@...linux.org.uk>, 
 "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, 
 Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, 
 Andreas Hindborg <a.hindborg@...nel.org>, Boqun Feng <boqun.feng@...il.com>, 
 Miguel Ojeda <ojeda@...nel.org>, Alex Gaynor <alex.gaynor@...il.com>, 
 Gary Guo <gary@...yguo.net>, 
 Björn Roy Baron <bjorn3_gh@...tonmail.com>, 
 Benno Lossin <benno.lossin@...ton.me>, Alice Ryhl <aliceryhl@...gle.com>
Cc: Shuah Khan <skhan@...uxfoundation.org>, 
 Anup Sharma <anupnewsmail@...il.com>, netdev@...r.kernel.org, 
 rust-for-linux@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-block@...r.kernel.org, Manas <manas18244@...td.ac.in>
Subject: [PATCH v3 1/3] rust: block: simplify Result<()> in
 validate_block_size return

From: Manas <manas18244@...td.ac.in>

`Result` is used in place of `Result<()>` because the default type
parameters are unit `()` and `Error` types, which are automatically
inferred. Thus keep the usage consistent throughout codebase.

Suggested-by: Miguel Ojeda <ojeda@...nel.org>
Link: https://github.com/Rust-for-Linux/linux/issues/1128
Signed-off-by: Manas <manas18244@...td.ac.in>
---
 rust/kernel/block/mq/gen_disk.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/rust/kernel/block/mq/gen_disk.rs b/rust/kernel/block/mq/gen_disk.rs
index 708125dce96a934f32caab44d5e6cff14c4321a9..798c4ae0bdedd58221b5851a630c0e1052e0face 100644
--- a/rust/kernel/block/mq/gen_disk.rs
+++ b/rust/kernel/block/mq/gen_disk.rs
@@ -45,7 +45,7 @@ pub fn rotational(mut self, rotational: bool) -> Self {

     /// Validate block size by verifying that it is between 512 and `PAGE_SIZE`,
     /// and that it is a power of two.
-    fn validate_block_size(size: u32) -> Result<()> {
+    fn validate_block_size(size: u32) -> Result {
         if !(512..=bindings::PAGE_SIZE as u32).contains(&size) || !size.is_power_of_two() {
             Err(error::code::EINVAL)
         } else {

-- 
2.47.0