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[88.187.86.199]) by smtp.gmail.com with ESMTPSA id a640c23a62f3a-c1288d6a3e8sm228444966b.19.2026.07.01.00.51.34 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Wed, 01 Jul 2026 00:51:36 -0700 (PDT) Message-ID: <7b5b211d-bbf1-42ea-9b1d-f8dfe744841c@oss.qualcomm.com> Date: Wed, 1 Jul 2026 09:51:33 +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 9/9] vdso/gettimeofday: Verify COMPAT_32BIT_TIME interactions 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-v2-9-520d194640dd@linutronix.de> From: =?UTF-8?Q?Philippe_Mathieu-Daud=C3=A9?= In-Reply-To: <20260630-vdso-compat_32bit_time-v2-9-520d194640dd@linutronix.de> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Proofpoint-Spam-Info: AW1haW4tMjYwNzAxMDA3NyBTYWx0ZWRfXzZXeEMYCSCHA 7rH1QpvS/jbcZWN3ID0S1s7B6Z5tiKQUGnKTkUNFMtzn4i4bKLqpUonBA9nfjIIHh+m5RHb0KSr m5S+ibmNZBlay1nOXVrwapiC/pnIZFA= X-Proofpoint-ORIG-GUID: mrdbL0piw1AHi82jAIGshQSr8HgzMarM X-Proofpoint-GUID: mrdbL0piw1AHi82jAIGshQSr8HgzMarM X-Authority-Analysis: v=2.4 cv=bNcm5v+Z c=1 sm=1 tr=0 ts=6a44c70a 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=yOCtJkima9RkubShWh1s:22 a=EUspDBNiAAAA:8 a=gC1PrsFcNpCBvASTUOwA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=NFOGd7dJGGMPyQGDc5-O:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzAxMDA3NyBTYWx0ZWRfXwptgJLxx2M2C HmX5p5L7/xPRTlygkBTuXSO3Jbd2LFLpA2eTch835JFPX5W8+Z0aUsW5lB7J0bAuou+c2npaMFZ +M553N4RKsYP8Ts+w6M3/r7H9QjpUGHl8StFuNL8YI9OwwNjJtbAqbtxBL4py+2QmrT2Nk/De38 d9zQqWZABYo6y25CusEb6K3qTdfxSyx+NrlzxI9mqmrD6j4qvdkTZ8OJ3/L7CFP9O3K46oQcgWS vTonKq6AOZMtQFIZIEl643Nfz1y5rccm4o1Evzryzn8/aoxPzf5hnN33W8ZN8IVx7dYugBCQOhg xkJ0Mt/HDEGBFt92nDaOItv39xSL1S/Fb1bRdOGuTf3A3rATHVJq7oJyogK+ijQmRLsYSXcHxih /amxL2xo+gKmP0duJg8HaAKPx3n5d/b7eaQ1k9geX1xe+uW+xdPH0EFXueSw9xLJlRJ6mMzFwKG Wgk5IZJOtCaag41VL9Q== 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 spamscore=0 bulkscore=0 adultscore=0 clxscore=1015 priorityscore=1501 suspectscore=0 malwarescore=0 lowpriorityscore=0 phishscore=0 impostorscore=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. > > Add some build-time validations to make sure the architecture-specific > glue satisfies this requirement. > > Signed-off-by: Thomas Weißschuh > --- > lib/vdso/gettimeofday.c | 10 ++++++++++ > 1 file changed, 10 insertions(+) Reviewed-by: Philippe Mathieu-Daudé