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Tue, 08 Sep 2026 14:51:45 +0000 (GMT) Received: from p1lg14885.dc01.its.hpecorp.net (unknown [10.119.18.236]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by p1lg14881.it.hpe.com (Postfix) with ESMTPS id 31AE2806B10; Tue, 8 Sep 2026 14:51:42 +0000 (UTC) Received: from ilogsc-qemu.local (unknown [16.231.227.39]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange ECDHE (P-256) server-signature RSA-PSS (2048 bits) server-digest SHA256) (Client did not present a certificate) by p1lg14885.dc01.its.hpecorp.net (Postfix) with ESMTPS id BF964806B6F; Tue, 8 Sep 2026 14:51:38 +0000 (UTC) Date: Tue, 8 Sep 2026 09:51:36 -0500 From: Steve Wahl To: Karl Mehltretter Cc: Jonathan Corbet , Geert Uytterhoeven , linux-m68k@lists.linux-m68k.org, Dmitry Torokhov , linux-input@vger.kernel.org, linux-doc@vger.kernel.org, Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, Steve Wahl , Dimitri Sivanich , Tony Luck , linux-edac@vger.kernel.org, Krzysztof Kozlowski , Arnd Bergmann , linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Tony Lindgren , Kevin Hilman , linux-omap@vger.kernel.org, Dominik Brodowski , Damien Le Moal , Niklas Cassel , linux-ide@vger.kernel.org Subject: Re: [PATCH 2/9] docs: kernel-parameters: Drop the bau= entry Message-ID: References: <20260905070347.25902-1-kmehltretter@gmail.com> <20260905070347.25902-3-kmehltretter@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260905070347.25902-3-kmehltretter@gmail.com> X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwOTA4MDE1OSBTYWx0ZWRfX0OcXsb7+afNp Wxvoi/6GnqRjyOdOWgk8vmpil2xZ7/B6hWhMV7dZEOjoZSPtzmaNiet8nNLmitXJKAHZDYGRuiO +BnYV71I99h+Rv0Omy9lovZ2YHlrfp0w0MpRhtH+xctUaoYEVhh7CoQNwVwyvUE+hv3qEB5QrKa LESp8EkOVHaq5KHGAsKHiURSc8DuKwWQN0bbu8m5fZSsrvjMSeJcdu7nvtYo+EfYv/YutcytdIr J3kqcOqa7xeU6Hf9c9Yhz9QQ6oaEGx9vn4MuuW8u/sO2OabO7cN0b5s5/LS0RHcFjC9FvFI/1t/ vS5PHN1O8aTK0owdYkLUGOZqoqPEZ7r19IQxyUL9gT1nXnmIjLYJCScSrWn0lsB1VI0Fhx7cnT9 vuOBIEzSFsKsgDie7KK8pk3F0VLYWXPRS/R8GmfVI4yW6mzYvyCYTShMfAnYHe200LU3qSneVvW dhqkSlFuDup+THT56RQ== X-Proofpoint-ORIG-GUID: kSPi3CYtlGSGi8JBxY6XVTVrmRXF89VC X-Proofpoint-GUID: kSPi3CYtlGSGi8JBxY6XVTVrmRXF89VC X-Authority-Analysis: v=2.4 cv=EZT4hvmC c=1 sm=1 tr=0 ts=6aa02101 cx=c_pps a=FAnPgvRYq/vnBSvlTDCQOQ==:117 a=FAnPgvRYq/vnBSvlTDCQOQ==:17 a=kj9zAlcOel0A:10 a=VdqzKS8jKosA:10 a=VkNPw1HP01LnGYTKEx00:22 a=gQcMVamqm3wCPoSYhaRC:22 a=3haJ9R1Aw3gUfsUHDaCR:22 a=pGLkceISAAAA:8 a=MvuuwTCpAAAA:8 a=LHlW8V97vvmrU187Gq4A:9 a=CjuIK1q_8ugA:10 X-Proofpoint-Spam-Info: AW1haW4tMjYwOTA4MDE1OSBTYWx0ZWRfXzze0u1U5qUAw LOz2+0CMKZ2r0oPoOu4gI0Fso6RS3BpO9Mwiw8RJOUVIP2IixDqn1c0zi2x/V0l1ImOqzm7ENsI fgq3w6HAb/FOBYm4cigHRs/KW4j6ULE= X-HPE-SCL: -1 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-09-08_03,2026-09-08_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 suspectscore=0 lowpriorityscore=0 impostorscore=0 adultscore=0 spamscore=0 clxscore=1011 bulkscore=0 malwarescore=0 phishscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2609080159 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260908_075301_894708_1E55664B X-CRM114-Status: GOOD ( 21.14 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Sat, Sep 05, 2026 at 09:03:40AM +0200, Karl Mehltretter wrote: > bau= went away with commit 39297dde7390 ("x86/platform/uv: Remove UV > BAU TLB Shootdown Handler"); nothing parses it any more. > > Drop the entry. > > Found by cross-checking every documented name against the __setup(), > early_param() and core_param() registrations in the tree. > > Fixes: 39297dde7390 ("x86/platform/uv: Remove UV BAU TLB Shootdown Handler") > Assisted-by: LLM > Signed-off-by: Karl Mehltretter Reviewed-by: Steve Wahl > --- > Documentation/admin-guide/kernel-parameters.txt | 7 ------- > 1 file changed, 7 deletions(-) > > diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt > index c8d96de4c00d..99d5bb68968a 100644 > --- a/Documentation/admin-guide/kernel-parameters.txt > +++ b/Documentation/admin-guide/kernel-parameters.txt > @@ -624,13 +624,6 @@ Kernel parameters > Format: (must be >=0) > Default: 64 > > - bau= [X86_UV] Enable the BAU on SGI UV. The default > - behavior is to disable the BAU (i.e. bau=0). > - Format: { "0" | "1" } > - 0 - Disable the BAU. > - 1 - Enable the BAU. > - unset - Disable the BAU. > - > bdev_allow_write_mounted= > Format: > Control the ability to open a mounted block device > -- > 2.53.0 > -- Steve Wahl, Hewlett Packard Enterprise