Messages in this thread | | | Date | Thu, 1 Dec 2022 20:48:40 -0400 | From | Jason Gunthorpe <> | Subject | Re: [PATCH 1/4] container_of: add container_of_const() that preserves const-ness of the pointer |
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On Thu, Dec 01, 2022 at 08:30:54PM +0100, Greg Kroah-Hartman wrote: > container_of does not preserve the const-ness of a pointer that is > passed into it, which can cause C code that passes in a const pointer to > get a pointer back that is not const and then scribble all over the data > in it. To prevent this, container_of_const() will preserve the const > status of the pointer passed into it using the newly available _Generic() > method. > > Co-developed-by: Jason Gunthorpe <jgg@ziepe.ca> > Cc: Matthew Wilcox <willy@infradead.org> > Cc: Sakari Ailus <sakari.ailus@linux.intel.com> > Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> > Cc: "Rafael J. Wysocki" <rafael@kernel.org> > Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> > --- > include/linux/container_of.h | 14 ++++++++++++++ > 1 file changed, 14 insertions(+)
For the whole series
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Jason
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