From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pz2-f12.google.com (mail-pz2-f12.google.com [74.125.228.12]) (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 472793A382B for ; Tue, 29 Sep 2026 14:33:53 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=74.125.228.12 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790692435; cv=none; b=MBEs4S6GwDIm/T443AXQYAg+XU1M8zrrQe/k/9a7nHqB7Fq7SjudJ5VS4kY1GVdHAVF3n3t+GD0ecwKLnhf5rKuj3lEcANcfsEfSU4TPWcQTWg0+n2ioiXxZpS2uABR8f77S1LmsWqMU4zdDWlqVekSIq842lBO29J5sjOT2AHo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1790692435; c=relaxed/simple; bh=Ictfo6ayTgeVzDX16BAuhDJZt7+ZVbpOljn2/hm1F4U=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=M77RKO4EgXddvkkoJYXqvBvlqaN4VUrQ6WR+FQtK29dtR6ObRze3buVXmV88bZMEhbzeS/XE+Qaj7+5EQ2+07Y7+Ru+PL1tOsvLl38Lzq6kIiytaPDKEG+4MgyeeXuBBo8pcWAb9+SlCodBag9jZEBW0ICfTnA9KAMUVNW2NIgM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=VqqqOADG; arc=none smtp.client-ip=74.125.228.12 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="VqqqOADG" Received: by mail-pz2-f12.google.com with SMTP id 41be03b00d2f7-cc4d04d73b8so1639763a12.1 for ; Tue, 29 Sep 2026 07:33:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20251104; t=1790692433; x=1791297233; darn=vger.kernel.org; h=in-reply-to:content-disposition:content-type:mime-version :references:message-id:subject:cc:to:from:date:from:to:cc:subject :date:message-id:reply-to:content-type; bh=43/3dmeDG8ZHEWDYTwQfHePyNi6D0sJRBJ/5pN8ksjc=; b=VqqqOADGK6buDD9+YdT2fixb8lVGHvp3cKk7QAzHyXYdA8vECGq3PGXJYbV8TuPLiE bql1PUi3LBcRrpJgVxElHsQu9EZKzFyPt1RXXJ2/On/2OC5N5GFvvRub+gc2q8u/KpPr q/uBw5f++mbV3baaqeWv2dGapSDGOdByBbE/E96XOB8x7ypOI5qvrH14aH8X9e6wvrG/ TPMQA3IjGZ+AHIXeBOMMw9lS5PWRKqaYfbsTi8RIj4A5R4blk8EWg3ozH44hRZ+QZuev PXZcrLMqDGfDCEfqndU0xo4plN/R5W7rYfcpLa4kztm7oIqK673+V+SCfO+VJqlylPrW MVMw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20260707; t=1790692433; x=1791297233; h=in-reply-to:content-disposition:content-type:mime-version :references:message-id:subject:cc:to:from:date:x-gm-gg :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to :content-type; bh=43/3dmeDG8ZHEWDYTwQfHePyNi6D0sJRBJ/5pN8ksjc=; b=HuCREkoKUTbAv9l/dsZioKsDG7hNDYCOJg+f17wAko6rxUwPDwo67VC7FXx/UrWVPk d3QaYFX1p3sRPkFVL47hlvzieEj1ubIHJKqZHayr9PmRCIWfpiKitofwgv7tQCdyi57/ qzq9G2wGpWvrBcGRoATY5nlw4kqcUaWHKlW/SvB03fNZLTi1RVWgVpnd+FqQOsdFJsKu S4Rpl2hkVuXjlLkuRRuFSUThqERorVKf+PRlGalAwTaZETVHBDlkr10rsS6qKrD3nMTl m06ZmvN2E1nAwPWUV20PSmp8w0Kb9NMgYKFNG/84SNtuhOsECbbkP50HbXdd2YbvDHcX NdkQ== X-Forwarded-Encrypted: i=1; AKwUvBw2tagCUHNBF+94BUw1fXjNYYXAKXycV3XiNDeM4W8zhzvR9x6hpwAPEACC8qVcpsMFwBUKNwiBtw0=@vger.kernel.org X-Gm-Message-State: AFuF++natC1QAFtYhsOw4d9Ka3DW5M4wpasBV6mPuoFoPetc+LKxh1kG OgtE3bBv2SkiOY1vy/xWD9cvKt8iJqAhx/HuKO+xCVaoSlY8Q1XMx506 X-Gm-Gg: AYBFou2wfq9PDIOpjB/9y8j8ahFFqV2cZzLi/4SXKhbs/Cr1Iji/abiMBYJloc9CM3q g6ctPPFzQKACAalwAVy/jT6E9tW4hybAZNa1JppyzopPYR0LjH1WRj5PPplfT7IQSyR5vQ0QooT kgzYzx4KvLYv5dk6c8d9Ko4JjQLQQBNlCqVH8mLgDPDwv0TrXICgTDgJNAhEJBf9rwoEGdsv8qA qpMEjoc48Y6aDdxccHSeuX5HYYz+pRC3cKC7XlJLgP6viG8JYLkCm43KUOrKNQH1enS+QeX6p+4 ZQGV0PmFcbz4J94OhBuUm+qDxk0Lc73x5UzWRTacHi7izHtX+g3pIjZJ3WkvzaR8KxwlmhJPviR BKock6n4TgsUglRZWz4Vohjkz1srRWFhK0h3XvBcX5cTspljO0FC1Rxmsw0xm8oa+T1E0nx1mJc MzDlJclWZmnqmQVqTfqHHDeOb+S+pHUBTKG8uZFpQ1lyUzUuLv7iellpV6vD4Jaa5OSRjrNMk= X-Received: by 2002:a05:6a21:6089:b0:3b2:a809:1000 with SMTP id adf61e73a8af0-3de0e6f07edmr15049574637.3.1790692432560; Tue, 29 Sep 2026 07:33:52 -0700 (PDT) Received: from google.com ([118.150.148.19]) by smtp.gmail.com with ESMTPSA id 41be03b00d2f7-cc7a3bb2d5asm4339524a12.17.2026.09.29.07.33.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 29 Sep 2026 07:33:52 -0700 (PDT) Date: Tue, 29 Sep 2026 22:33:46 +0800 From: Kuan-Wei Chiu To: Geert Uytterhoeven Cc: corbet@lwn.net, skhan@linuxfoundation.org, ast@kernel.org, daniel@iogearbox.net, eddyz87@gmail.com, memxor@gmail.com, andrii@kernel.org, gerg@linux-m68k.org, rdunlap@infradead.org, martin.lau@linux.dev, song@kernel.org, yonghong.song@linux.dev, jolsa@kernel.org, emil@etsalapatis.com, ihor.solodrai@linux.dev, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-m68k@lists.linux-m68k.org, bpf@vger.kernel.org, jserv@ccns.ncku.edu.tw, marscheng@google.com, eleanor15x@gmail.com, Daniel Palmer Subject: Re: [PATCH v6] m68k, bpf: Add initial BPF JIT compiler support Message-ID: References: <20260927205501.672807-1-visitorckw@gmail.com> Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Hi Geert, On Mon, Sep 28, 2026 at 02:15:43PM +0200, Geert Uytterhoeven wrote: > Hi Kuwan-Wei, > > On Sun, 27 Sept 2026 at 22:55, Kuan-Wei Chiu wrote: > > Add a BPF JIT compiler for the m68k architecture. > > > > The JIT generates m68k machine code targeting m68020+ processors and > > coldfire parts with an mmu (ISA_B/ISA_C). It excludes plain 68000/68010 > > and non-mmu coldfire processors, as it relies on 32-bit branch > > displacements (b.l) to handle large bpf programs. > > > > Tested with the test_bpf.ko: > > test_bpf: Summary: 1061 PASSED, 0 FAILED, [1049/1049 JIT'ed] > > test_bpf: test_tail_calls: Summary: 10 PASSED, 0 FAILED, [10/10 JIT'ed] > > > > Tested-by: Daniel Palmer > > Co-developed-by: Greg Ungerer > > Signed-off-by: Greg Ungerer > > Signed-off-by: Kuan-Wei Chiu > > --- > > Changes in v6: > > - Fix kconfig sort order for HAVE_EBPF_JIT. > > - Update eBPF-JIT/arch-support.txt > > Thanks for the update! > > Are any of the issues raised by the bpf-ci bot valid? > Thanks! > Yeah, I'll address those and send out v7 shortly. Regards, Kuan-Wei