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(parent: ab5ff40) | patch
arm64: Improve error reporting on set_pte_at() checks
authorCatalin Marinas <catalin.marinas@arm.com>
Tue, 8 Dec 2015 17:39:15 +0000 (17:39 +0000)
committerCatalin Marinas <catalin.marinas@arm.com>
Fri, 11 Dec 2015 15:44:24 +0000 (15:44 +0000)
commitc5354b956148c317acd3746171e7137ca92caa9b
tree05b40eda97d06673cc1e04a66d2158d7abd5761ftree | snapshot
parentab5ff404c6e6f69a26a92919ae54d9c06a3a9fe6commit | diff
arm64: Improve error reporting on set_pte_at() checks

Currently the BUG_ON() checks do not give enough information about the
PTEs being set. This patch changes BUG_ON to WARN_ONCE and dumps the
values of the old and new PTEs. In addition, the checks are only made if
the new PTE entry is valid.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Reported-by: Ming Lei <tom.leiming@gmail.com>
Cc: Will Deacon <will.deacon@arm.com>
arch/arm64/include/asm/pgtable.h diff | blob | history
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