linux-kernel - Re: [PATCH] rust: Use grep -Ev rather than relying on GNU grep

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Message-ID: <CAH5fLgjmPkfokku190dab9JVqk3_uTABNWqOZ-xKOEqQJoX+9g@mail.gmail.com>
Date:   Mon, 2 Oct 2023 09:51:59 +0200
From:   Alice Ryhl <aliceryhl@...gle.com>
To:     Matthew Maurer <mmaurer@...gle.com>
Cc:     Miguel Ojeda <ojeda@...nel.org>,
        Alex Gaynor <alex.gaynor@...il.com>,
        Wedson Almeida Filho <wedsonaf@...il.com>,
        Boqun Feng <boqun.feng@...il.com>, Gary Guo <gary@...yguo.net>,
        Björn Roy Baron <bjorn3_gh@...tonmail.com>,
        Benno Lossin <benno.lossin@...ton.me>,
        Andreas Hindborg <a.hindborg@...sung.com>,
        rust-for-linux@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] rust: Use grep -Ev rather than relying on GNU grep

On Thu, Sep 28, 2023 at 10:14 PM Matthew Maurer <mmaurer@...gle.com> wrote:
>
> While GNU grep supports '\|' when in basic regular expression mode, not
> all grep implementations do (notably toybox grep, used to build the
> Android kernel, does not). Switching to grep -Ev enables extended
> regular expresions which includes support for the '|' operator.
>
> Signed-off-by: Matthew Maurer <mmaurer@...gle.com>

LGTM. I tested this in my Android build.

Reviewed-by: Alice Ryhl <aliceryhl@...gle.com>
Tested-by: Alice Ryhl <aliceryhl@...gle.com>