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2018-12-17lib: fix build failure in CONFIG_DEBUG_VIRTUAL testChristophe Leroy
On several arches, virt_to_phys() is in io.h Build fails without it: CC lib/test_debug_virtual.o lib/test_debug_virtual.c: In function 'test_debug_virtual_init': lib/test_debug_virtual.c:26:7: error: implicit declaration of function 'virt_to_phys' [-Werror=implicit-function-declaration] pa = virt_to_phys(va); ^ Fixes: e4dace361552 ("lib: add test module for CONFIG_DEBUG_VIRTUAL") CC: stable@vger.kernel.org Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> Reviewed-by: Kees Cook <keescook@chromium.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2018-08-22lib/test_debug_virtual.c: make struct pointer foo staticColin Ian King
The pointer foo is local to the source and does not need to be in global scope, so make it static. Cleans up sparse warning: symbol 'foo' was not declared. Should it be static? Link: http://lkml.kernel.org/r/20180624112206.5722-1-colin.king@canonical.com Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2017-09-08lib: add test module for CONFIG_DEBUG_VIRTUALFlorian Fainelli
Add a test module that allows testing that CONFIG_DEBUG_VIRTUAL works correctly, at least that it can catch invalid calls to virt_to_phys() against the non-linear kernel virtual address map. Link: http://lkml.kernel.org/r/20170808164035.26725-1-f.fainelli@gmail.com Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Cc: "Luis R. Rodriguez" <mcgrof@kernel.org> Cc: Kees Cook <keescook@chromium.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>