From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-wm1-f74.google.com (mail-wm1-f74.google.com [209.85.128.74]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 292C626D4F7 for ; Sat, 7 Mar 2026 22:50:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.128.74 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772923835; cv=none; b=CY6KnQsrcGpA1untUJwDz6DbgG7KB6THdgD7pnjJXAHAR7Yv81qocNbxIp7ZZRhGsuY7o5EsyVeAbuCTIu495bp4YYGCGFb7yo7qdk9V6DHivJ0+OgZhquGtwKkk5ZFdIpeb/BE3rdC1R17rBwf6SeDvIsNbWRXCtSejfI+KUIQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772923835; c=relaxed/simple; bh=DR7iCf5iCuY1oxdfXKGg1i5bjdnpv/6wc+i8qgFECKg=; h=Date:In-Reply-To:Mime-Version:References:Message-ID:Subject:From: To:Cc:Content-Type; b=pmtP2cTXyiVUQHRmwT3mTZV9sGdpBNsnNdpUSBHJYRkdCuN0Kc+xNuXKs6AlE6PWis8o+xYU1WMogaFrLB4s1r+XVfL5rGiIDlFN+zmrGJP5TsLJs1GxBL1l539r5GI7xZQhfSSl2BOq2H/2ARn3dfiLft0a1Q0A2Olu8MPhevw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--aliceryhl.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=c3lp3Sag; arc=none smtp.client-ip=209.85.128.74 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--aliceryhl.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="c3lp3Sag" Received: by mail-wm1-f74.google.com with SMTP id 5b1f17b1804b1-48529c087f6so16714985e9.3 for ; Sat, 07 Mar 2026 14:50:33 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20230601; t=1772923832; x=1773528632; darn=vger.kernel.org; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:from:to:cc:subject:date:message-id:reply-to; bh=J2Ga3PqBJMZ/HRtk4qSHoFPMCGwKdMPoOZIGSkIVk3w=; b=c3lp3Sagcksko3ht3N+8zjx9JMpXLtOfz33uofA/RgkOsUlD0uV0RUzA2Bu19qr6E+ NcYxjWE7OaW6l622558IspFLeo+9oxtzXPu0AYdIm3XThqKbJhcz/VgbvNH4Kg3oW+Sd Z8JeXn135QLSUWSdqAhURJjeGxn69kjht2aqiu9Sbw2hyJPkimTfdQtRY9+MdpWYcEAk K5wz9KnnqPFyBgIVB95xC5yEwki6n2RLMJyHUcw2yuJSr/7O4oA4KrJNStx5bhHnunCJ D6MVy3EdH3wuKA/FQ3gEpDcfz7j/Lgf0/nyQI6xm1COLUX0onVGwgVCXkxbgTqQIC6lR /4og== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1772923832; x=1773528632; h=cc:to:from:subject:message-id:references:mime-version:in-reply-to :date:x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=J2Ga3PqBJMZ/HRtk4qSHoFPMCGwKdMPoOZIGSkIVk3w=; b=QIrsFNzYdGa65awEnMOVNh6BmkvdF0vqeagTv+6OMBcMQdw/zz6HEe9A1Aqyt5eFDV GXOT3dbWEKRmjU+RTL7rfxzNEb17wm6ydAjV06kH6k70yfNy2onjXwCJ69hPAvaYAVoG 2PRpRAhm7S+W7TUoj7e70iyB7fCcinH5xCuF4inY5XgwNeLFN9CdnbkheC0rVca/6ccD J8l/czJs3L8ehY20UKkLRNe72vnNwuKD5C/F+hKkoj44ipyBdoEzjjzPPP4WFM3aMHAi 6l02oY1zrclYf438gFeVAprBv2ri7rjVJ5Rp7k4y8Dkh3bElV0MwT+4mV0axyb1pcP2m 5aEg== X-Forwarded-Encrypted: i=1; AJvYcCUF9orZw5PWLD+I768jWryIQt/XOJF0BcNvVqD1L1KvclOHyPrzX+8UFZ2KbRXJzP8MJHzgNeMI6GDdUu0=@vger.kernel.org X-Gm-Message-State: AOJu0YxrAPICCpU/ZuuzB4sMI+a4g5y1MXwaRjbA9i1z01LJye7sQdL3 pxkdrH3Zak5FRzdF44t6mO+ngZ1K1omJNrJRzGSVeAS+cBzO5XWy4VGi+/9sc1Bwm453d+E6lAz iUBC8z20luj5OQLSEEg== X-Received: from wmdv10.prod.google.com ([2002:a05:600c:12ca:b0:485:2d79:6c74]) (user=aliceryhl job=prod-delivery.src-stubby-dispatcher) by 2002:a05:600c:37c9:b0:483:612d:7a9a with SMTP id 5b1f17b1804b1-485268bf171mr105914175e9.0.1772923832367; Sat, 07 Mar 2026 14:50:32 -0800 (PST) Date: Sat, 7 Mar 2026 22:50:31 +0000 In-Reply-To: <20260307135941.51353a4f@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 References: <20260306-binder-netlink-v1-0-daceb5bc83f2@google.com> <20260307104131.4c1d0de5@kernel.org> <20260307135941.51353a4f@kernel.org> Message-ID: Subject: Re: [PATCH 0/4] Rust netlink support + use in Rust Binder From: Alice Ryhl To: Jakub Kicinski Cc: Miguel Ojeda , Boqun Feng , Gary Guo , "=?utf-8?B?QmrDtnJu?= Roy Baron" , Benno Lossin , Andreas Hindborg , Trevor Gross , Danilo Krummrich , Donald Hunter , "David S. Miller" , Eric Dumazet , Paolo Abeni , Simon Horman , Greg Kroah-Hartman , "Arve =?utf-8?B?SGrDuG5uZXbDpWc=?=" , Todd Kjos , Christian Brauner , Carlos Llamas , linux-kernel@vger.kernel.org, rust-for-linux@vger.kernel.org, netdev@vger.kernel.org Content-Type: text/plain; charset="utf-8" On Sat, Mar 07, 2026 at 01:59:41PM -0800, Jakub Kicinski wrote: > On Sat, 7 Mar 2026 21:19:06 +0000 Alice Ryhl wrote: > > On Sat, Mar 07, 2026 at 10:41:31AM -0800, Jakub Kicinski wrote: > > > On Fri, 06 Mar 2026 15:12:12 +0000 Alice Ryhl wrote: > > > > The C Binder driver exposes messages over netlink when transactions > > > > fail, so that a userpace daemon can respond to processes with many > > > > failing transactions. > > > > > > Ugh, now I regret letting binder use Netlink. Should have seen this > > > coming :/ > > > > To be honest, I'm not entirely happy with what Binder is using netlink > > for either, but it is what it is. > > If we're both not happy let's take this opportunity to find a better > solution? My understanding is that userspace is already using or looking into using the netlink uapi that Binder exposes here. I don't know to what extent; it's not used *that* much yet, but it may still be tricky to change the uapi at this point. Alice