diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-09-18 20:59:15 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-09-18 20:59:15 +0200 |
| commit | 92ab97adeefccf375de7ebaad9d5b75d4125fe8b (patch) | |
| tree | 95d215eabfe1a0181d121c6e71c9b635fbcceb24 /arch | |
| parent | Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm6... (diff) | |
| parent | sh: fix syscall tracing (diff) | |
| download | linux-92ab97adeefccf375de7ebaad9d5b75d4125fe8b.tar.xz linux-92ab97adeefccf375de7ebaad9d5b75d4125fe8b.zip | |
Merge tag 'sh-for-5.9-part2' of git://git.libc.org/linux-sh
Pull arch/sh fixes from Rich Felker:
"Fixes for build and function regression"
* tag 'sh-for-5.9-part2' of git://git.libc.org/linux-sh:
sh: fix syscall tracing
sh: remove spurious circular inclusion from asm/smp.h
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/sh/include/asm/smp.h | 1 | ||||
| -rw-r--r-- | arch/sh/kernel/entry-common.S | 1 | ||||
| -rw-r--r-- | arch/sh/kernel/ptrace_32.c | 15 |
3 files changed, 5 insertions, 12 deletions
diff --git a/arch/sh/include/asm/smp.h b/arch/sh/include/asm/smp.h index 1a0d7cf71c10..100bf241340b 100644 --- a/arch/sh/include/asm/smp.h +++ b/arch/sh/include/asm/smp.h @@ -8,7 +8,6 @@ #ifdef CONFIG_SMP -#include <linux/spinlock.h> #include <linux/atomic.h> #include <asm/current.h> #include <asm/percpu.h> diff --git a/arch/sh/kernel/entry-common.S b/arch/sh/kernel/entry-common.S index ad963104d22d..91ab2607a1ff 100644 --- a/arch/sh/kernel/entry-common.S +++ b/arch/sh/kernel/entry-common.S @@ -370,7 +370,6 @@ syscall_trace_entry: nop cmp/eq #-1, r0 bt syscall_exit - mov.l r0, @(OFF_R0,r15) ! Save return value ! Reload R0-R4 from kernel stack, where the ! parent may have modified them using ! ptrace(POKEUSR). (Note that R0-R2 are diff --git a/arch/sh/kernel/ptrace_32.c b/arch/sh/kernel/ptrace_32.c index b05bf92f9c32..5281685f6ad1 100644 --- a/arch/sh/kernel/ptrace_32.c +++ b/arch/sh/kernel/ptrace_32.c @@ -455,16 +455,11 @@ long arch_ptrace(struct task_struct *child, long request, asmlinkage long do_syscall_trace_enter(struct pt_regs *regs) { - long ret = 0; - if (test_thread_flag(TIF_SYSCALL_TRACE) && - tracehook_report_syscall_entry(regs)) - /* - * Tracing decided this syscall should not happen. - * We'll return a bogus call number to get an ENOSYS - * error, but leave the original number in regs->regs[0]. - */ - ret = -1L; + tracehook_report_syscall_entry(regs)) { + regs->regs[0] = -ENOSYS; + return -1; + } if (secure_computing() == -1) return -1; @@ -475,7 +470,7 @@ asmlinkage long do_syscall_trace_enter(struct pt_regs *regs) audit_syscall_entry(regs->regs[3], regs->regs[4], regs->regs[5], regs->regs[6], regs->regs[7]); - return ret ?: regs->regs[0]; + return 0; } asmlinkage void do_syscall_trace_leave(struct pt_regs *regs) |