linux-kernel - Re: [PATCH 02/10] kernel: entry: Expose helpers to migrate TIF to SYSCALL

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Date:   Sat, 14 Nov 2020 11:22:49 +0000
From:   Christoph Hellwig <hch@...radead.org>
To:     Gabriel Krisman Bertazi <krisman@...labora.com>
Cc:     tglx@...utronix.de, mingo@...hat.com, keescook@...omium.org,
        arnd@...db.de, luto@...capital.net, wad@...omium.org,
        rostedt@...dmis.org, paul@...l-moore.com, eparis@...hat.com,
        oleg@...hat.com, linux-arch@...r.kernel.org,
        linux-kernel@...r.kernel.org, x86@...nel.org, kernel@...labora.com
Subject: Re: [PATCH 02/10] kernel: entry: Expose helpers to migrate TIF to
 SYSCALL_WORK flags

> +#ifdef CONFIG_GENERIC_ENTRY
> +static inline void __set_task_syscall_work(struct thread_info *ti, int flag)
> +{
> +	set_bit(flag, (unsigned long *)&ti->syscall_work);
> +}
> +static inline int __test_task_syscall_work(struct thread_info *ti, int flag)
> +{
> +	return test_bit(flag, (unsigned long *)&ti->syscall_work);
> +}
> +static inline void __clear_task_syscall_work(struct thread_info *ti, int flag)
> +{
> +	return clear_bit(flag, (unsigned long *)&ti->syscall_work);

The casts here look bogus.