Re: [PATCH v4 7/8] net-device: Use new helpers from overflow.h in netdevice APIs
From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Date: 2024-02-28 21:53:25
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On Wed, Feb 28, 2024 at 01:46:10PM -0800, Kees Cook wrote:
On Wed, Feb 28, 2024 at 10:41:37PM +0200, Andy Shevchenko wrote:
...
quoted
static inline void *netdev_priv(const struct net_device *dev) { - return (char *)dev + ALIGN(sizeof(struct net_device), NETDEV_ALIGN); + return struct_data_pointer(dev, NETDEV_ALIGN); }I really don't like hiding these trailing allocations from the compiler. Why can't something like this be done (totally untested):
Below is interesting idea, now at least I started understanding your previous comments. -- With Best Regards, Andy Shevchenko