From: Alexey Dobriyan <adobriyan@gmail.com>
To: tim.c.chen@linux.intel.com, aarcange@redhat.com
Cc: linux-kernel@vger.kernel.org
Subject: Re: [PATCH v2 4/8] x86/spec_ctrl: Add sysctl knobs to enable/disable SPEC_CTRL feature
Date: Mon, 8 Jan 2018 20:43:40 +0300 [thread overview]
Message-ID: <20180108174340.GA7310@avx2> (raw)
> + len = sprintf(buf, "%d\n", READ_ONCE(*field));
READ_ONCE isn't necessary as there is only one read being made.
> + len = min(count, sizeof(buf) - 1);
> + if (copy_from_user(buf, user_buf, len))
> + return -EFAULT;
> +
> + buf[len] = '\0';
> + if (kstrtouint(buf, 0, &enable))
> + return -EINVAL;
There is kstrto*_from_user().
next reply other threads:[~2018-01-08 17:43 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-08 17:43 Alexey Dobriyan [this message]
2018-01-08 18:30 ` [PATCH v2 4/8] x86/spec_ctrl: Add sysctl knobs to enable/disable SPEC_CTRL feature Andrea Arcangeli
-- strict thread matches above, loose matches on Subject: below --
2018-01-06 2:12 [PATCH v2 0/8] IBRS patch series Tim Chen
2018-01-06 2:12 ` [PATCH v2 4/8] x86/spec_ctrl: Add sysctl knobs to enable/disable SPEC_CTRL feature Tim Chen
2018-01-06 3:12 ` Dave Hansen
2018-01-08 12:47 ` Peter Zijlstra
2018-01-08 16:14 ` Peter Zijlstra
2018-01-08 17:28 ` Tim Chen
2018-01-08 17:42 ` Peter Zijlstra
2018-01-08 19:34 ` Woodhouse, David
2018-01-08 19:52 ` Lu, Hongjiu
2018-01-09 10:40 ` Thomas Gleixner
2018-01-09 17:55 ` Tim Chen
2018-01-09 18:13 ` David Woodhouse
2018-01-09 20:31 ` Tim Chen
2018-01-27 13:59 ` Konrad Rzeszutek Wilk
2018-01-27 14:26 ` David Woodhouse
2018-01-06 8:54 ` Greg KH
2018-01-06 18:10 ` Tim Chen
2018-01-06 21:25 ` Konrad Rzeszutek Wilk
2018-01-07 8:20 ` Greg KH
2018-01-06 14:41 ` Konrad Rzeszutek Wilk
2018-01-06 17:33 ` Dave Hansen
2018-01-06 17:41 ` Van De Ven, Arjan
2018-01-06 19:22 ` Dave Hansen
2018-01-06 19:47 ` Thomas Gleixner
2018-01-06 21:32 ` Konrad Rzeszutek Wilk
2018-01-06 21:34 ` Van De Ven, Arjan
2018-01-06 21:41 ` Konrad Rzeszutek Wilk
2018-01-06 21:44 ` Van De Ven, Arjan
2018-01-06 21:39 ` Thomas Gleixner
2018-01-06 18:23 ` Tim Chen
2018-01-06 18:20 ` Tim Chen
2018-01-08 15:08 ` Peter Zijlstra
2018-01-08 15:29 ` Van De Ven, Arjan
2018-01-08 17:02 ` Tim Chen
2018-01-08 15:11 ` Peter Zijlstra
2018-01-08 15:15 ` Peter Zijlstra
2018-01-08 15:53 ` Peter Zijlstra
2018-01-09 0:29 ` Borislav Petkov
2018-01-09 18:05 ` Tim Chen
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