Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > linux.kernel > #1262749
| From | Arnd Bergmann <arnd@arndb.de> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [Y2038] [PATCH] usb: misc: usbtest: Remove timeval usage |
| Date | 2015-11-05 01:00 +0100 |
| Message-ID | <qrg8a-7fJ-1@gated-at.bofh.it> (permalink) |
| References | <qrfF8-75I-25@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Wednesday 04 November 2015 15:29:11 Deepa Dinamani wrote: > timeval is deprecated and not y2038 safe. Its size also changes according > to 32 bit/ 64 bit compilation. Replace it with 32 and 64 bit versions of > its individual fields, giving two ioctls with different code values. > The two ioctls are necessary to maintain the 32 bit and 64 bit userspace > compatibility with a 64/32 bit kernel. > > Change unsigned to __u32 types for a definitive userspace interface. > This is in accordance with the psABI that the unsigned type is always > 32 bits. > > Also use motonic timer instead of real time to ensure positive delta > values. > > Refactor usbtest_ioctl for readability to isolate the handling of the > testing timing measurement. > > The official testusb userspace tool can be changed in a separate patch > to reflect the __u32 changes as well. It can use the usbtest_param_32 > struct, since 32 bit seconds is long enough for test durations. > > Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com> > Reviewed-by: Arnd Bergmann <arnd@arndb.de> -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Back to linux.kernel | Previous | Next — Previous in thread | Find similar | Unroll thread
[PATCH] usb: misc: usbtest: Remove timeval usage Deepa Dinamani <deepa.kernel@gmail.com> - 2015-11-05 00:30 +0100 Re: [Y2038] [PATCH] usb: misc: usbtest: Remove timeval usage Arnd Bergmann <arnd@arndb.de> - 2015-11-05 01:00 +0100
csiph-web