summaryrefslogtreecommitdiff
path: root/drivers/nvdimm/btt_devs.c
diff options
context:
space:
mode:
authorRasmus Villemoes <linux@rasmusvillemoes.dk>2015-11-06 16:30:29 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2015-11-06 17:50:42 -0800
commit707cc7280f452a162c52bc240eae62568b9753c2 (patch)
treed0d32718d956868c4111a1926ca6067d14e2e51f /drivers/nvdimm/btt_devs.c
parent80c9eb46fa7236c1236ec695bfa2403c10cb8645 (diff)
test_printf: test printf family at runtime
This adds a simple module for testing the kernel's printf facilities. Previously, some %p extensions have caused a wrong return value in case the entire output didn't fit and/or been unusable in kasprintf(). This should help catch such issues. Also, it should help ensure that changes to the formatting algorithms don't break anything. I'm not sure if we have a struct dentry or struct file lying around at boot time or if we can fake one, but most %p extensions should be testable, as should the ordinary number and string formatting. The nature of vararg functions means we can't use a more conventional table-driven approach. For now, this is mostly a skeleton; contributions are very welcome. Some tests are/will be slightly annoying to write, since the expected output depends on stuff like CONFIG_*, sizeof(long), runtime values etc. Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk> Reviewed-by: Kees Cook <keescook@chromium.org> Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Martin Kletzander <mkletzan@redhat.com> Cc: Rasmus Villemoes <linux@rasmusvillemoes.dk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/nvdimm/btt_devs.c')
0 files changed, 0 insertions, 0 deletions