[Stratos-dev] Re: [PATCH V4 2/4] xen: irqfd: Use _IOW instead of the internal _IOC() macro

On 16.10.23 09:11, Viresh Kumar wrote:

_IOC() an internal helper that we should not use in driver code. In particular, we got the data direction wrong here, which breaks a number of tools, as having "_IOC_NONE" should never be paired with a nonzero size.

Use _IOW() instead.

Fixes: f8941e6c4c71 ("xen: privcmd: Add support for irqfd") Reported-by: Arnd Bergmann arnd@kernel.org Closes: https://lore.kernel.org/all/268a2031-63b8-4c7d-b1e5-8ab83ca80b4a@app.fastmai... Signed-off-by: Viresh Kumar viresh.kumar@linaro.org

Reviewed-by: Juergen Gross jgross@suse.com

Juergen