module: make it possible to have unsafe, tainting module params

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Add flags field to struct kernel_params, and add the first flag: unsafe
parameter. Modifying a kernel parameter with the unsafe flag set, either
via the kernel command line or sysfs, will issue a warning and taint the
kernel.

Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Jean Delvare <khali@linux-fr.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Li Zhong <zhong@linux.vnet.ibm.com>
Cc: Jon Mason <jon.mason@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

...

This commit is contained in:

Jani Nikula 2014-08-27 06:22:23 +09:30 • committed by Rusty Russell

parent 6a4c264313

commit 91f9d330cc

3 changed files with 47 additions and 10 deletions

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2

drivers/tty/serial/8250/8250_core.c

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44

include/linux/moduleparam.h

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11

kernel/params.c

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