On Mon, Mar 25, 2019 at 3:07 PM shuah <shuah@xxxxxxxxxx> wrote:
On 3/25/19 11:56 AM, Brian Norris wrote:...
On Mon, Mar 25, 2019 at 8:51 AM shuah <shuah@xxxxxxxxxx> wrote:
In general the ABI is stable.
No, it really isn't. This commit was a breaking change:
But this one is definitely a break:
Author: Yuyang Du <yuyang.du@xxxxxxxxx>
Date: Thu Jun 8 13:04:10 2017 +0800
usbip: vhci-hcd: Add USB3 SuperSpeed support
You can't just arbitrarily add columns to the beginning of a file like
that and claim that you're not breaking ABI. And I shouldn't need to
remind you that Thou Shalt Not Break User Space.
USB 3.0 driver and tool support went in, I would say it was oversight to
not make sure the tool continues to work on older kernels.
While that's true, you're still not grokking my main point when asking
about ABI stability:
*old* tools should still work on *new* kernels
The above commit broke that.