From mboxrd@z Thu Jan 1 00:00:00 1970 From: Mike Rapoport Date: Mon, 21 Jan 2019 08:03:48 +0000 Subject: [PATCH v2 01/21] openrisc: prefer memblock APIs returning virtual address Message-Id: <1548057848-15136-2-git-send-email-rppt@linux.ibm.com> List-Id: References: <1548057848-15136-1-git-send-email-rppt@linux.ibm.com> In-Reply-To: <1548057848-15136-1-git-send-email-rppt@linux.ibm.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-mm@kvack.org Cc: Rich Felker , linux-ia64@vger.kernel.org, devicetree@vger.kernel.org, Catalin Marinas , Heiko Carstens , x86@kernel.org, linux-mips@vger.kernel.org, Max Filippov , Guo Ren , sparclinux@vger.kernel.org, Christoph Hellwig , linux-s390@vger.kernel.org, linux-c6x-dev@linux-c6x.org, Yoshinori Sato , Richard Weinberger , linux-sh@vger.kernel.org, Russell King , kasan-dev@googlegroups.com, Mike Rapoport , Geert Uytterhoeven , Mark Salter , Dennis Zhou , Matt Turner , linux-snps-arc@lists.infradead.org, uclinux-h8-devel@lists.sourceforge.jp, Petr Mladek , linux-xtensa@linux-xtensa.org, linux-alpha@vger.kernel.org, linux-um@lists.infradead.org, linux-m68k@lists.linux-m68k.org, Rob Herring , Greentime Hu , xen-devel@lists.xenproject.org, Stafford Horne , Guan Xuetao , linux-arm-kernel@lists.infradead.org, Michal Simek , Tony Luck , Greg Kroah-Hartman , linux-usb@vger.kernel.org, linux-kernel@vger.kernel.org, Paul Burton , Vineet Gupta , Michael Ellerman , Andrew Morton , linuxppc-dev@lists.ozlabs.org, "David S. Miller" , openrisc@lists.librecores.org The allocation of the page tables memory in openrics uses memblock_phys_alloc() and then converts the returned physical address to virtual one. Use memblock_alloc_raw() and add a panic() if the allocation fails. Signed-off-by: Mike Rapoport --- arch/openrisc/mm/init.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/arch/openrisc/mm/init.c b/arch/openrisc/mm/init.c index d157310..caeb418 100644 --- a/arch/openrisc/mm/init.c +++ b/arch/openrisc/mm/init.c @@ -105,7 +105,10 @@ static void __init map_ram(void) } /* Alloc one page for holding PTE's... */ - pte = (pte_t *) __va(memblock_phys_alloc(PAGE_SIZE, PAGE_SIZE)); + pte = memblock_alloc_raw(PAGE_SIZE, PAGE_SIZE); + if (!pte) + panic("%s: Failed to allocate page for PTEs\n", + __func__); set_pmd(pme, __pmd(_KERNPG_TABLE + __pa(pte))); /* Fill the newly allocated page with PTE'S */ -- 2.7.4