From: David Hildenbrand <david@redhat.com>
To: Richard Henderson <richard.henderson@linaro.org>, qemu-devel@nongnu.org
Cc: thuth@redhat.com, qemu-s390x@nongnu.org, cohuck@redhat.com,
laurent@vivier.eu
Subject: Re: [PATCH v2 04/15] linux-user/s390x: Remove restore_sigregs return value
Date: Thu, 29 Apr 2021 09:11:50 +0200 [thread overview]
Message-ID: <fc86cdab-d1c8-6784-c7d2-227511eac307@redhat.com> (raw)
In-Reply-To: <20210428193408.233706-5-richard.henderson@linaro.org>
On 28.04.21 21:33, Richard Henderson wrote:
> The function cannot fail.
>
> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
> ---
> linux-user/s390x/signal.c | 14 +++-----------
> 1 file changed, 3 insertions(+), 11 deletions(-)
>
> diff --git a/linux-user/s390x/signal.c b/linux-user/s390x/signal.c
> index 1dfca71fa9..e455a9818d 100644
> --- a/linux-user/s390x/signal.c
> +++ b/linux-user/s390x/signal.c
> @@ -230,10 +230,8 @@ give_sigsegv:
> force_sigsegv(sig);
> }
>
> -static int
> -restore_sigregs(CPUS390XState *env, target_sigregs *sc)
> +static void restore_sigregs(CPUS390XState *env, target_sigregs *sc)
> {
> - int err = 0;
> int i;
>
> for (i = 0; i < 16; i++) {
> @@ -251,8 +249,6 @@ restore_sigregs(CPUS390XState *env, target_sigregs *sc)
> for (i = 0; i < 16; i++) {
> __get_user(*get_freg(env, i), &sc->fpregs.fprs[i]);
> }
> -
> - return err;
> }
>
> long do_sigreturn(CPUS390XState *env)
> @@ -271,9 +267,7 @@ long do_sigreturn(CPUS390XState *env)
> target_to_host_sigset_internal(&set, &target_set);
> set_sigmask(&set); /* ~_BLOCKABLE? */
>
> - if (restore_sigregs(env, &frame->sregs)) {
> - goto badframe;
> - }
> + restore_sigregs(env, &frame->sregs);
>
> unlock_user_struct(frame, frame_addr, 0);
> return -TARGET_QEMU_ESIGRETURN;
> @@ -297,9 +291,7 @@ long do_rt_sigreturn(CPUS390XState *env)
>
> set_sigmask(&set); /* ~_BLOCKABLE? */
>
> - if (restore_sigregs(env, &frame->uc.tuc_mcontext)) {
> - goto badframe;
> - }
> + restore_sigregs(env, &frame->uc.tuc_mcontext);
>
> target_restore_altstack(&frame->uc.tuc_stack, env);
>
>
Reviewed-by: David Hildenbrand <david@redhat.com>
--
Thanks,
David / dhildenb
next prev parent reply other threads:[~2021-04-29 7:16 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-28 19:33 [PATCH v2 00/15] linux-user/s390x: some signal fixes Richard Henderson
2021-04-28 19:33 ` [PATCH v2 01/15] linux-user/s390x: Fix sigframe types Richard Henderson
2021-04-29 7:10 ` David Hildenbrand
2021-04-28 19:33 ` [PATCH v2 02/15] linux-user/s390x: Use uint16_t for signal retcode Richard Henderson
2021-04-29 7:10 ` David Hildenbrand
2021-04-28 19:33 ` [PATCH v2 03/15] linux-user/s390x: Remove PSW_ADDR_AMODE Richard Henderson
2021-04-29 7:11 ` David Hildenbrand
2021-04-28 19:33 ` [PATCH v2 04/15] linux-user/s390x: Remove restore_sigregs return value Richard Henderson
2021-04-29 7:11 ` David Hildenbrand [this message]
2021-04-28 19:33 ` [PATCH v2 05/15] linux-user/s390x: Fix trace in restore_regs Richard Henderson
2021-04-29 7:12 ` David Hildenbrand
2021-04-28 19:33 ` [PATCH v2 06/15] linux-user/s390x: Fix sigcontext sregs value Richard Henderson
2021-04-29 7:13 ` David Hildenbrand
2021-04-28 19:34 ` [PATCH v2 07/15] linux-user/s390x: Use tswap_sigset in setup_rt_frame Richard Henderson
2021-04-29 7:14 ` David Hildenbrand
2021-04-28 19:34 ` [PATCH v2 08/15] linux-user/s390x: Tidy save_sigregs Richard Henderson
2021-04-29 7:14 ` David Hildenbrand
2021-04-28 19:34 ` [PATCH v2 09/15] linux-user/s390x: Clean up single-use gotos in signal.c Richard Henderson
2021-04-29 7:15 ` David Hildenbrand
2021-04-28 19:34 ` [PATCH v2 10/15] linux-user/s390x: Set psw.mask properly for the signal handler Richard Henderson
2021-04-29 7:20 ` David Hildenbrand
2021-04-28 19:34 ` [PATCH v2 11/15] linux-user/s390x: Add stub sigframe argument for last_break Richard Henderson
2021-04-29 7:21 ` David Hildenbrand
2021-04-28 19:34 ` [PATCH v2 12/15] linux-user/s390x: Fix frame_addr corruption in setup_frame Richard Henderson
2021-04-29 7:21 ` David Hildenbrand
2021-04-28 19:34 ` [PATCH v2 13/15] linux-user/s390x: Add build asserts for sigset sizes Richard Henderson
2021-04-29 7:21 ` David Hildenbrand
2021-04-28 19:34 ` [PATCH v2 14/15] linux-user/s390x: Clean up signal.c Richard Henderson
2021-04-29 7:29 ` David Hildenbrand
2021-04-28 19:34 ` [PATCH v2 15/15] linux-user/s390x: Handle vector regs in signal stack Richard Henderson
2021-04-29 7:32 ` David Hildenbrand
2021-04-28 19:40 ` [PATCH v2 00/15] linux-user/s390x: some signal fixes Richard Henderson
2021-04-29 7:33 ` David Hildenbrand
2021-05-06 11:54 ` Cornelia Huck
2021-05-06 13:31 ` Laurent Vivier
2021-05-15 19:44 ` Laurent Vivier
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