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authorThomas Gleixner <tglx@kernel.org>2026-07-12 23:25:22 +0200
committerThomas Gleixner <tglx@kernel.org>2026-07-20 20:38:40 +0200
commitdfc98c7a46424683326c8d8ffc70e81548c59fdb (patch)
tree325b240d1cda426ea6569b64b8f0694f314c388d /include/linux
parent6f25517010ddd3f8080d7e06b9b1cb1b64b73772 (diff)
entry: Rework trace_syscall_enter()
Reread the syscall number from pt_regs and stop returning the eventually modified syscall number. That moves the reread to the end of syscall_trace_enter() and prepares for moving it to the call site. No functional change. Signed-off-by: Thomas Gleixner <tglx@kernel.org> Tested-by: Michal Suchánek <msuchanek@suse.de> Reviewed-by: Jinjie Ruan <ruanjinjie@huawei.com> Link: https://patch.msgid.link/20260712141346.639115923@kernel.org
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/entry-common.h10
1 files changed, 4 insertions, 6 deletions
diff --git a/include/linux/entry-common.h b/include/linux/entry-common.h
index 78cfeeb7a5f0..38d148477729 100644
--- a/include/linux/entry-common.h
+++ b/include/linux/entry-common.h
@@ -58,7 +58,7 @@ static __always_inline bool arch_ptrace_report_syscall_permit_entry(struct pt_re
}
#endif
-long trace_syscall_enter(struct pt_regs *regs, long syscall);
+void trace_syscall_enter(struct pt_regs *regs);
void trace_syscall_exit(struct pt_regs *regs, long ret);
void syscall_enter_audit(struct pt_regs *regs);
@@ -99,16 +99,14 @@ static __always_inline long syscall_trace_enter(struct pt_regs *regs, unsigned l
return -1L;
}
- /* Either of the above might have changed the syscall number */
- syscall = syscall_get_nr(current, regs);
-
if (unlikely(work & SYSCALL_WORK_SYSCALL_TRACEPOINT))
- syscall = trace_syscall_enter(regs, syscall);
+ trace_syscall_enter(regs);
if (unlikely(audit_context()))
syscall_enter_audit(regs);
- return syscall;
+ /* Either of the above might have changed the syscall number */
+ return syscall_get_nr(current, regs);
}
/**