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c=relaxed/simple; d=ellerman.id.au; s=201909; t=1596374059; bh=l8Vv313rJGqlK2PcaNCVrGcU8SJlDczW2rNrY770DTs=; h=From:To:Cc:Subject:In-Reply-To:References:Date:From; b=ZE71Wyclmt4MQrTZPs6iY6nA2eek+wB/iYUyHxx7nWlyJbBID58C0vJfORjrDD43E wNND8mtfpDbimWptgmYv4VddxYAmX0rHolg1XVT+G8s2w1bA+8uHwFHNUayBhafmGn U3RDd9O7hEfPsfEFxg1WUJgbZZ35QUi0zip6yzBRdj0KvzX0aIma+XejtIevU686ru HM91WecXmsJTqK1azOcV4OJmJvhTYVRaSfqOgAvj1ip20Yb1FPEAys0j9IKpP3z8BI XGg3VJKFsWHrW1MkBYjbjQi72gF9zJZpWvDX1DLzzpzZpzoVYn1bqH1kWqIhbU7xhV gtswbHEE4eTGQ== From: Michael Ellerman To: Mike Rapoport Subject: Re: [PATCH 06/15] powerpc: fadamp: simplify fadump_reserve_crash_area() In-Reply-To: <20200801101854.GD534153@kernel.org> References: <20200728051153.1590-1-rppt@kernel.org> <20200728051153.1590-7-rppt@kernel.org> <87d04d5hda.fsf@mpe.ellerman.id.au> <20200801101854.GD534153@kernel.org> Date: Sun, 02 Aug 2020 23:14:10 +1000 Message-ID: <87o8nt197h.fsf@mpe.ellerman.id.au> MIME-Version: 1.0 Cc: linux-sh@vger.kernel.org, Peter Zijlstra , Benjamin Herrenschmidt , Dave Hansen , Hari Bathini , linux-mips@vger.kernel.org, Max Filippov , Paul Mackerras , sparclinux@vger.kernel.org, linux-riscv@lists.infradead.org, Will Deacon , Stafford Horne , linux-s390@vger.kernel.org, linux-c6x-dev@linux-c6x.org, Yoshinori Sato , x86@kernel.org, Russell King , Mike Rapoport , clang-built-linux@googlegroups.com, Ingo Molnar , Catalin Marinas , uclinux-h8-devel@lists.sourceforge.jp, linux-xtensa@linux-xtensa.org, openrisc@lists.librecores.org, Borislav Petkov , Andy Lutomirski , Paul Walmsley , Thomas Gleixner , linux-arm-kernel@lists.infradead.org, Michal Simek , linux-mm@kvack.org, linuxppc-dev@lists.ozlabs.org, linux-kernel@vger.kernel.org, iommu@lists.linux-foundation.org, Palmer Dabbelt , Andrew Morton , Christoph Hellwig X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" Mike Rapoport writes: > On Thu, Jul 30, 2020 at 10:15:13PM +1000, Michael Ellerman wrote: >> Mike Rapoport writes: >> > From: Mike Rapoport >> > >> > fadump_reserve_crash_area() reserves memory from a specified base address >> > till the end of the RAM. >> > >> > Replace iteration through the memblock.memory with a single call to >> > memblock_reserve() with appropriate that will take care of proper memory >> ^ >> parameters? >> > reservation. >> > >> > Signed-off-by: Mike Rapoport >> > --- >> > arch/powerpc/kernel/fadump.c | 20 +------------------- >> > 1 file changed, 1 insertion(+), 19 deletions(-) >> >> I think this looks OK to me, but I don't have a setup to test it easily. >> I've added Hari to Cc who might be able to. >> >> But I'll give you an ack in the hope that it works :) > > Actually, I did some digging in the git log and the traversal was added > there on purpose by the commit b71a693d3db3 ("powerpc/fadump: exclude > memory holes while reserving memory in second kernel") > Presuming this is still reqruired I'm going to drop this patch and will > simply replace for_each_memblock() with for_each_mem_range() in v2. Thanks. cheers _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu