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[88.187.86.199]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-4756797a8besm15540687f8f.35.2026.07.01.00.49.18 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 01 Jul 2026 00:49:19 -0700 (PDT) Message-ID: <1df42f13-229e-465c-a5ce-40ea3bd93e8b@oss.qualcomm.com> Date: Wed, 1 Jul 2026 09:49:16 +0200 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 4/9] arm64: vdso32: Respect COMPAT_32BIT_TIME Content-Language: en-US To: =?UTF-8?Q?Thomas_Wei=C3=9Fschuh?= , Andy Lutomirski , Thomas Gleixner , Ingo Molnar , Borislav Petkov , Dave Hansen , x86@kernel.org, "H. Peter Anvin" , Russell King , Catalin Marinas , Will Deacon , Madhavan Srinivasan , Michael Ellerman , Nicholas Piggin , "Christophe Leroy (CS GROUP)" , Thomas Bogendoerfer , Vincenzo Frascino , John Stultz , Stephen Boyd , "David S. Miller" , Andreas Larsson Cc: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linuxppc-dev@lists.ozlabs.org, linux-mips@vger.kernel.org, Arnd Bergmann , linux-api@vger.kernel.org, sparclinux@vger.kernel.org References: <20260630-vdso-compat_32bit_time-v2-0-520d194640dd@linutronix.de> <20260630-vdso-compat_32bit_time-v2-4-520d194640dd@linutronix.de> From: =?UTF-8?Q?Philippe_Mathieu-Daud=C3=A9?= In-Reply-To: <20260630-vdso-compat_32bit_time-v2-4-520d194640dd@linutronix.de> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Proofpoint-Spam-Info: AW1haW4tMjYwNzAxMDA3NyBTYWx0ZWRfX4oYlmBnUT5FW wzqEuZkGPbmsWuexsGbMQNKCzSfQ8PHwSw9SO+0Evh9w9CXvcbvarBsPrEc2PPRZP4cRP5BRE5B kpAOY7RyTvJNeYOeBS9ixwKQ6KxRpWQ= X-Proofpoint-GUID: Zjrya5--RVq8Q_jMY9OSDKDYhSyI96Q2 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzAxMDA3NyBTYWx0ZWRfXweC5b3Kq1ZSU B3NBv72/9Eenm/wa332P1eypbb4eaZ5u28je0TQH4/4OzD5RWYb1zfFXQGwoDzOykHBM1TJDM7j ZCXFM4a8tNrsw8OcalvdM7+VNfjhnYXnCm2J/ErAgfXT08JSFkz0Au/LUNv+Sf5l+HnuqbcW46D al5lZX3fvocruxuCAllK75FK2eSiVu98mS8owKm7tUXe2H4JjpnMJccCDcalDLmPXzhQI47BUCP cD1fM/gyXa6bsActixy8g3A3X/Aoof0V+uKgIXbCItyB1tEQpjZ80CecjadUFwpDi49L9kA/8JT VeFpQHDn6idMC2ZQeY55MLPfabQXG2ebaf1Brfu9QOxQ46oSt5bbvBndr60xMQ0LI14lhjPJrME JiDDdaJwGocNuhQ9onzwntuP13en28Dq9wyVHdhWHUcKRVGgYEr2Ws9wxjLXiYJ8pAMMGrx+fQY CQfR+DYAYpmfE+JgUxQ== X-Authority-Analysis: v=2.4 cv=R+wz39RX c=1 sm=1 tr=0 ts=6a44c687 cx=c_pps a=qKBjSQ1v91RyAK45QCPf5w==:117 a=4s3hRJSeHn4rkQlkrse1kQ==:17 a=IkcTkHD0fZMA:10 a=RAioF0-LDSMA:10 a=M51BFTxLslgA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=ZpdpYltYx_vBUK5n70dp:22 a=EUspDBNiAAAA:8 a=gC1PrsFcNpCBvASTUOwA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=NFOGd7dJGGMPyQGDc5-O:22 X-Proofpoint-ORIG-GUID: Zjrya5--RVq8Q_jMY9OSDKDYhSyI96Q2 X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.125,FMLib:17.12.100.49 definitions=2026-07-01_01,2026-06-26_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 spamscore=0 phishscore=0 priorityscore=1501 impostorscore=0 adultscore=0 lowpriorityscore=0 bulkscore=0 clxscore=1015 malwarescore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607010077 On 30/6/26 09:38, Thomas WeiÃschuh wrote: > If CONFIG_COMPAT_32BIT_TIME is disabled then the vDSO should not > provide any 32-bit time related functionality. This is the intended > effect of the kconfig option and also the fallback system calls would > also not be implemented. > > Currently the kconfig option does not affect the gettimeofday() syscall, > so also keep that in the vDSO. > > Signed-off-by: Thomas Weißschuh > --- > arch/arm64/kernel/vdso32/vdso.lds.S | 2 ++ > arch/arm64/kernel/vdso32/vgettimeofday.c | 14 ++++++++------ > 2 files changed, 10 insertions(+), 6 deletions(-) Reviewed-by: Philippe Mathieu-Daudé