Re: [PATCH] usb: f_mass_storage: test whether thread is running before starting another

[Michal Nazarewicz]

On Tue, Apr 05 2016, Alan Stern wrote:
> Suppose one usb_function is carrying out an I/O operation while
> another one in the same config gets a Set-Interface request from the
> host.

That cannot happen.  A single instance of mass_storage cannot be added
twice to the same configuration.

 To be more precise, not via configfs.  A legacy gadget could do that,
  but that would be a bug in that legacy driver, not f_mass_storage.
  Moreover, no current legacy gadgets do that though so IMO this is an
  academic discussion.

-- 
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