From 8ac6c7a54ed1b98d142dce24b11c6de6a1e239a5 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Tue, 22 Oct 2024 10:36:11 +0000
Subject: [PATCH] 修改4g拨号为QMI,需要在系统里后台执行quectel-CM
---
kernel/arch/alpha/kernel/signal.c | 21 ++++++++++-----------
1 files changed, 10 insertions(+), 11 deletions(-)
diff --git a/kernel/arch/alpha/kernel/signal.c b/kernel/arch/alpha/kernel/signal.c
index 8c0c4ee..948b897 100644
--- a/kernel/arch/alpha/kernel/signal.c
+++ b/kernel/arch/alpha/kernel/signal.c
@@ -65,7 +65,7 @@
if (act) {
old_sigset_t mask;
- if (!access_ok(VERIFY_READ, act, sizeof(*act)) ||
+ if (!access_ok(act, sizeof(*act)) ||
__get_user(new_ka.sa.sa_handler, &act->sa_handler) ||
__get_user(new_ka.sa.sa_flags, &act->sa_flags) ||
__get_user(mask, &act->sa_mask))
@@ -77,7 +77,7 @@
ret = do_sigaction(sig, act ? &new_ka : NULL, oact ? &old_ka : NULL);
if (!ret && oact) {
- if (!access_ok(VERIFY_WRITE, oact, sizeof(*oact)) ||
+ if (!access_ok(oact, sizeof(*oact)) ||
__put_user(old_ka.sa.sa_handler, &oact->sa_handler) ||
__put_user(old_ka.sa.sa_flags, &oact->sa_flags) ||
__put_user(old_ka.sa.sa_mask.sig[0], &oact->sa_mask))
@@ -207,7 +207,7 @@
sigset_t set;
/* Verify that it's a good sigcontext before using it */
- if (!access_ok(VERIFY_READ, sc, sizeof(*sc)))
+ if (!access_ok(sc, sizeof(*sc)))
goto give_sigsegv;
if (__get_user(set.sig[0], &sc->sc_mask))
goto give_sigsegv;
@@ -225,7 +225,7 @@
return;
give_sigsegv:
- force_sig(SIGSEGV, current);
+ force_sig(SIGSEGV);
}
asmlinkage void
@@ -235,7 +235,7 @@
sigset_t set;
/* Verify that it's a good ucontext_t before using it */
- if (!access_ok(VERIFY_READ, &frame->uc, sizeof(frame->uc)))
+ if (!access_ok(&frame->uc, sizeof(frame->uc)))
goto give_sigsegv;
if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set)))
goto give_sigsegv;
@@ -253,7 +253,7 @@
return;
give_sigsegv:
- force_sig(SIGSEGV, current);
+ force_sig(SIGSEGV);
}
@@ -332,7 +332,7 @@
oldsp = rdusp();
frame = get_sigframe(ksig, oldsp, sizeof(*frame));
- if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
+ if (!access_ok(frame, sizeof(*frame)))
return -EFAULT;
err |= setup_sigcontext(&frame->sc, regs, set->sig[0], oldsp);
@@ -377,7 +377,7 @@
oldsp = rdusp();
frame = get_sigframe(ksig, oldsp, sizeof(*frame));
- if (!access_ok(VERIFY_WRITE, frame, sizeof(*frame)))
+ if (!access_ok(frame, sizeof(*frame)))
return -EFAULT;
err |= copy_siginfo_to_user(&frame->info, &ksig->info);
@@ -453,7 +453,7 @@
regs->r0 = EINTR;
break;
}
- /* fallthrough */
+ fallthrough;
case ERESTARTNOINTR:
regs->r0 = r0; /* reset v0 and a3 and replay syscall */
regs->r19 = r19;
@@ -527,11 +527,10 @@
schedule();
} else {
local_irq_enable();
- if (thread_flags & _TIF_SIGPENDING) {
+ if (thread_flags & (_TIF_SIGPENDING|_TIF_NOTIFY_SIGNAL)) {
do_signal(regs, r0, r19);
r0 = 0;
} else {
- clear_thread_flag(TIF_NOTIFY_RESUME);
tracehook_notify_resume(regs);
}
}
--
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