[PATCH 4.15 058/146] dm bufio: avoid false-positive Wmaybe-uninitialized warning

4.15-stable review patch. If anyone has any objections, please let me know. -- From: Arnd Bergmann commit 590347e4000356f55eb10b03ced2686bd74dab40 upstream. gcc-6.3 and earlier show a new warning after a seemingly unrelated change to the arm64 PAGE_KERNEL

[PATCH 4.15 058/146] dm bufio: avoid false-positive Wmaybe-uninitialized warning

4.15-stable review patch. If anyone has any objections, please let me know. -- From: Arnd Bergmann commit 590347e4000356f55eb10b03ced2686bd74dab40 upstream. gcc-6.3 and earlier show a new warning after a seemingly unrelated change to the arm64 PAGE_KERNEL definition: In file