Messages in this thread |  | | From | Vincent Chen <> | Date | Tue, 6 Feb 2018 15:41:16 +0800 | Subject | Re: [PATCH v6 19/36] nds32: VDSO support |
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2018-01-18 18:28 GMT+08:00 Arnd Bergmann <arnd@arndb.de>: > On Mon, Jan 15, 2018 at 6:53 AM, Greentime Hu <green.hu@gmail.com> wrote: >> From: Greentime Hu <greentime@andestech.com> >> >> This patch adds VDSO support. The VDSO code is currently used for >> sys_rt_sigreturn() and optimised gettimeofday() (using the SoC timer counter). >> >> Signed-off-by: Vincent Chen <vincentc@andestech.com> >> Signed-off-by: Greentime Hu <greentime@andestech.com> > > Acked-by: Arnd Bergmann <arnd@arndb.de>
Dear Arnd Bergmann:
We find a small bug here which make LTP 20170929 clock_getres01 fail. The bug is in __vdso_clock_getres() function. When argument res is NULL, -EFAULT error code is returned now. But, the returned value is 0 for SyS_clock_getres under the same conditions. Therefore, testcase thinks it is a bug.
I will modify the code as below and add it in the next version patch if you think it is OK.
@@ -209,7 +209,7 @@ static notrace int clock_getres_fallback( ... { if (res == NULL) - return -EFAULT; + return 0;
Thanks
Vincnet
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