Messages in this thread | | | Date | Wed, 13 Apr 2022 09:27:57 +0200 | From | Greg KH <> | Subject | Re: [PATCH] uio: make MAX_UIO_MAPS & MAX_UIO_PORT_REGIONS configurable |
| |
On Wed, Apr 13, 2022 at 10:11:37AM +0300, Ramon Fried wrote: > MAX_UIO_MAPS and MAX_UIO_PORT_REGIONS are hard-coded to 5. > This is not always sufficiant for some drivers.
Why not? What in-kernel drivers need more than this?
> Make the MAX_UIO_MAPS and MAX_UIO_PORT_REGIONS configurable by > providing Kconfig int option with the defaut value of 5.
Spelling check?
> > Signed-off-by: Ramon Fried <rfried.dev@gmail.com> > --- > drivers/uio/Kconfig | 14 ++++++++++++++ > include/linux/uio_driver.h | 4 ++-- > 2 files changed, 16 insertions(+), 2 deletions(-) > > diff --git a/drivers/uio/Kconfig b/drivers/uio/Kconfig > index 2e16c5338e5b..bc1fe83cec13 100644 > --- a/drivers/uio/Kconfig > +++ b/drivers/uio/Kconfig > @@ -13,6 +13,20 @@ menuconfig UIO > > if UIO > > +config UIO_MAX_MAPS > + int "Maximum of memory nodes each uio device support(1-128)"
Space before "(" please.
> + range 1 128 > + default 5 > + help > + Maximum memory mapping each uio device can support.
Any hints as to what this means in more detail?
> + > +config UIO_MAX_PORT_REGIONS > + int "Maximum of port regions each uio device support(1-128)" > + range 1 128 > + default 5 > + help > + Maximum port regions each uio device can support.
Again more detail please.
thanks,
greg k-h
| |