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[88.187.86.199]) by smtp.gmail.com with ESMTPSA id 4fb4d7f45d1cf-69acd1d32c6sm1861799a12.31.2026.07.09.04.20.43 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Thu, 09 Jul 2026 04:20:46 -0700 (PDT) Message-ID: <73b82749-2df3-4c12-bc2a-ff7628dc8292@oss.qualcomm.com> Date: Thu, 9 Jul 2026 13:20:43 +0200 Precedence: bulk X-Mailing-List: linux-s390@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 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> From: =?UTF-8?Q?Philippe_Mathieu-Daud=C3=A9?= In-Reply-To: <20260707190254.181086755@kernel.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-Proofpoint-ORIG-GUID: g6cXfgyB3kr0oVlUwGWcrED4_i_mzhCm X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzA5MDEwOCBTYWx0ZWRfX51oEahLdH4Cr JHWagpcQOltM3RxgKi/PdKz2/hS+sGjvZoK/CD7e3WK608Cc5eikwqWw6PDgj+f2X8frfoD4zwF tbm6sLHiud6CstKoveCuXXyDXlUO1Ebm+WsNpDFfNYyk4wxUAoNlNxK+a04/rusp9rNtBXsmLw3 +PxmzjIT8wD+Q6CSQv7kdikET6t/FdhNJWdsSFVbPzLK3jz8U5KS8yA0PZQmjjAk+p4r158oJnj jyBxhfqOXHYp59btLGHv9tlHZCq/c641/0qbDSbnbf4s7SwhYqQO0K1loG4MQ1t7gRp0o4kxl2v fwZOSy9RPehQXR5MwHFqB7U2au+zR6geI98N/mwobpxZe6yH7kmGZVGrUIoR7lfeyMEL8XkQxMc qS9q0S5RNiPqEb43tzeNQef3eC5YQyZNOfESLRsOWL5DH+cpz8s3yyBT/F1uOIlULT/mrpcjtv8 8F4CCyrHH09eQ6WhIcg== X-Proofpoint-Spam-Info: AW1haW4tMjYwNzA5MDEwOCBTYWx0ZWRfX1Jb7JP+OY4gW pBLAbu8oaqI0Voq62y0Lst5CoFfrEsq2UfSBl9AFAzTeH9cMImcwkCEQ3OZlqf+DPNKj98G1sKf HI6RJo/I5E4hgwwIVSMmZfvdqM+MS9Y= X-Authority-Analysis: v=2.4 cv=PYPPQChd c=1 sm=1 tr=0 ts=6a4f8410 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=gowsoOTTUOVcmtlkKump:22 a=VwQbUJbxAAAA:8 a=uucGcSui7XbmpEV0VHgA:9 a=QEXdDO2ut3YA:10 a=uxP6HrT_eTzRwkO_Te1X:22 X-Proofpoint-GUID: g6cXfgyB3kr0oVlUwGWcrED4_i_mzhCm 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 priorityscore=1501 phishscore=0 lowpriorityscore=0 impostorscore=0 malwarescore=0 adultscore=0 clxscore=1015 bulkscore=0 spamscore=0 suspectscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607090108 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(-)