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[88.187.86.199]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-47a9de1e6ccsm50814277f8f.5.2026.07.09.04.22.27 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 09 Jul 2026 04:22:29 -0700 (PDT) Message-ID: Date: Thu, 9 Jul 2026 13:22:26 +0200 Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [patch 10/18] entry: Use syscall number instead of rereading it Content-Language: en-US From: =?UTF-8?Q?Philippe_Mathieu-Daud=C3=A9?= To: Thomas Gleixner , LKML Cc: Peter Zijlstra , Michael Ellerman , Shrikanth Hegde , linuxppc-dev@lists.ozlabs.org, Kees Cook , Huacai Chen , loongarch@lists.linux.dev, Paul Walmsley , Palmer Dabbelt , linux-riscv@lists.infradead.org, Sven Schnelle , linux-s390@vger.kernel.org, x86@kernel.org, Mark Rutland , Jinjie Ruan , Andy Lutomirski , Oleg Nesterov , Richard Henderson , Russell King , Catalin Marinas , Guo Ren , Geert Uytterhoeven , Thomas Bogendoerfer , Helge Deller , Yoshinori Sato , Richard Weinberger , Chris Zankel , linux-arm-kernel@lists.infradead.org, linux-alpha@vger.kernel.org, linux-csky@vger.kernel.org, linux-m68k@lists.linux-m68k.org, linux-mips@vger.kernel.org, linux-parisc@vger.kernel.org, linux-sh@vger.kernel.org, linux-um@lists.infradead.org, Arnd Bergmann , Vineet Gupta , Will Deacon , Brian Cain , Michal Simek , Dinh Nguyen , "David S. Miller" , Andreas Larsson , linux-snps-arc@lists.infradead.org, linux-hexagon@vger.kernel.org, linux-openrisc@vger.kernel.org, sparclinux@vger.kernel.org, linux-arch@vger.kernel.org, =?UTF-8?Q?Michal_Such=C3=A1nek?= , Jonathan Corbet , linux-doc@vger.kernel.org References: <20260707181957.433213175@kernel.org> <20260707190254.181086755@kernel.org> <73b82749-2df3-4c12-bc2a-ff7628dc8292@oss.qualcomm.com> In-Reply-To: <73b82749-2df3-4c12-bc2a-ff7628dc8292@oss.qualcomm.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 8bit X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzA5MDEwOCBTYWx0ZWRfX/fy3k+lzcpBj 9u946q18ZIUmAsyUc0lDwumUjc4S3xboWpCfmoXOBE9Q3/r6g9AsFUXl42Ym8EwxQPWvKzFWpaU KxzVTgS2FG55rY+Izn5ZUJUk+DwbHIBKg7GZoUGX5/kEvI6RW6WeY4mFf5V0et7UShmdy+9bllz 26pXBttIMD4FqTdf1hIJrstonO7Q5vr2MRr3S/kPhvt3KdDL17AvpoUHcY824ZFdQbXXpDX73bA 4I13wCLVpIpNKZIiyFbUGdJtr14UBztqZ27AXw4RAIFh4DX4dX7ibKUPxflI3f8XQrXx9CIetng 0Al5YJv061Fll0C0/cO4Ksw/7fIfoGMrfRxtTHDioK/lIjpajOdWlujPpMcIeBRqAojvjs7G/yv qCgwpw05CZ28s3gAVDWz+OZxr+zIsNKFZQVbZLSGMVzY/DkwUNG6Jyx0bTahGntTpvpehDzT7EQ Ne9+oitIpr7fS5p/DHw== X-Authority-Analysis: v=2.4 cv=KfDidwYD c=1 sm=1 tr=0 ts=6a4f8477 cx=c_pps a=WeENfcodrlLV9YRTxbY/uA==: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=DJpcGTmdVt4CTyJn9g5Z:22 a=VwQbUJbxAAAA:8 a=EUspDBNiAAAA:8 a=1tSEMpTH9XP_W59IOagA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=kacYvNCVWA4VmyqE58fU:22 X-Proofpoint-Spam-Info: AW1haW4tMjYwNzA5MDEwOCBTYWx0ZWRfX7LEqbdzc5kWZ 2Ojycc291cGFt7K/KLWNJzSRWHU42yFPTakyz0XZJc0e+HH3VTUfOjfQi+1X4HE0jIvMMuBPkj5 ocfynmvFIA6lSiUQ9Wwkgx6rNLEFF3c= X-Proofpoint-ORIG-GUID: JqoDSUHhWKFv8ZtlZf_Ll2gaW7U3GipJ X-Proofpoint-GUID: JqoDSUHhWKFv8ZtlZf_Ll2gaW7U3GipJ X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-07-09_02,2026-07-09_01,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 suspectscore=0 impostorscore=0 lowpriorityscore=0 phishscore=0 malwarescore=0 adultscore=0 clxscore=1015 priorityscore=1501 spamscore=0 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607090108 On 9/7/26 13:20, Philippe Mathieu-Daudé wrote: > On 7/7/26 21:06, Thomas Gleixner wrote: >> rseq_syscall_enter_work() is invoked before the syscall number can be >> modified. So there is no point in rereading it from pt_regs. >> >> Signed-off-by: Thomas Gleixner >> --- >>   include/linux/entry-common.h |    9 +++++---- >>   1 file changed, 5 insertions(+), 4 deletions(-) Reviewed-by: Philippe Mathieu-Daudé