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gpu: nova-core: bitfield: simplify expression

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The shift is more easily expressed by the index of the lowest bit of the
field.

Reported-by: Edwin Peer <epeer@nvidia.com>
Link: https://lore.kernel.org/rust-for-linux/F3853912-2C1C-4F9B-89B0-3168689F35B3@nvidia.com/
Reviewed-by: Joel Fernandes <joelagnelf@nvidia.com>
Reviewed-by: Danilo Krummrich <dakr@kernel.org>
Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Message-ID: <20251022-nova-bitfield-v1-2-73bc0988667b@nvidia.com>
This commit is contained in:
Alexandre Courbot 2025-10-22 19:50:57 +09:00
parent fa08ec789f
commit e6b8932b93
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/nova-core/bitfield.rs
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@ -268,7 +268,7 @@ impl $name {
_ => ::kernel::build_error!("Unsupported storage type size")
}
};
const [<$field:upper _SHIFT>]: u32 = Self::[<$field:upper _MASK>].trailing_zeros();
const [<$field:upper _SHIFT>]: u32 = $lo;
);
$(