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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 X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , List-Subscribe: , , List-Unsubscribe: Precedence: list 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: AW1haW4tMjYwNzA5MDEwOCBTYWx0ZWRfXxH3VQpJxYKvy yvTMMYIrho10FwugTto56iCHrNkRR3ir/5U/LRDewQQsqrLn7BmYSycgDsJ9xd03TjBGW0qzFHt 8K19Z9bEuF77kSD/CU7KehbbkrFtv54o3BGEb1r+/l5Vj1TZPFi+wFKH8CW/Y4HYcD6kFnzvlXJ B9YIEdMOmC+ennyEauodZ0O+gFRYRhXCwLhl5PxhPm1bXt1UBixumwrtMqChPm+Xoh0QYsbHq/Z NL0DsC9iCTG4fA/XxmMfzyVtOp7SPQ0Y+O6+6TUK/W10zc0mPEmoO1ZTHHIcx9e9WsC+Jg+iumE Bt5i5gnYuOI85uELIETDhL8yYRWHvWAJFLNQfEpPadq18p8Hqn1gN8lEjF5r6mgG4Zg8/MoHE4H bBuvct8QDuxvI/rGgTiuj3MZ1CNMfc1778zC61pxWEG80CMp92mvN8MvGY+VmfcRI2gTeygDWE9 C5ssyXMUEJoNXcfHWUw== X-Authority-Analysis: v=2.4 cv=KfDidwYD c=1 sm=1 tr=0 ts=6a4f8477 cx=c_pps a=JbAStetqSzwMeJznSMzCyw==: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=uxP6HrT_eTzRwkO_Te1X:22 X-Proofpoint-Spam-Info: AW1haW4tMjYwNzA5MDEwOCBTYWx0ZWRfX7pArupkYT9mt dXc8yMmYjp9B/gCxR8R+btXWZmosWw+flnAz4bvz33cU8xLqp+vfb7i5wnDKqO8Fd3oqcJf4wb9 RVJUiiUseKbSQm/duQ4NuGuzkxf7mpM= X-Proofpoint-ORIG-GUID: h1EeZED3pIZQVNmjXuppZS6FiV5l7CE0 X-Proofpoint-GUID: h1EeZED3pIZQVNmjXuppZS6FiV5l7CE0 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