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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



  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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