Messages in this thread | | | Date | Thu, 21 Jul 2022 17:29:59 +0100 | From | Chris Down <> | Subject | Re: [PATCH v3 2/2] printk: console: Support console-specific loglevels |
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kernel test robot writes: >sparse warnings: (new ones prefixed by >>) >>> kernel/printk/sysctl.c:31:47: sparse: sparse: incorrect type in argument 3 (different address spaces) @@ expected void * @@ got void [noderef] __user *buffer @@ > kernel/printk/sysctl.c:31:47: sparse: expected void * > kernel/printk/sysctl.c:31:47: sparse: got void [noderef] __user *buffer
Ah, since commit 32927393dc1c ("sysctl: pass kernel pointers to ->proc_handler") we copy to kernelspace before passing to the callback, so it's not a userspace pointer. That's certainly an improvement.
Will fix for v4.
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