Re: [PATCH v12] ARM: uncompress: Validate start of physical memory against passed DTB
From: Linus Walleij <hidden>
Date: 2021-01-18 13:11:44
Also in:
linux-devicetree, linux-renesas-soc, lkml
On Mon, Jan 11, 2021 at 5:19 PM Geert Uytterhoeven [off-list ref] wrote:
quoted
I suppose we already had a discussion of why this property is undocumented? Or should we document it? Obviously it is already in widespread use.This comes from commit 51975db0b7333cf3 ("of/flattree: merge early_init_dt_scan_memory() common code"), which combined existing practises on Microblaze (commit 12e8414263f47352 ("microblaze_v8: Open firmware files")) and PowerPC (ba7594852f4e7121 ("[PATCH] powerpc: Add support for "linux,usable-memory" on memory nodes")), with the former obviously just copying the latter. Unfortunately none of this is documented in The DeviceTree Specification, ePAPR, or P1275. Heinrich tried to document it, but his patch was ignored: [PATCH] Documentation: devicetree: "linux,usable-memory" property https://lore.kernel.org/linux-devicetree/20161223161747.9986-1-xypron.glpk@gmx.de/ (local) https://lkml.org/lkml/2016/12/23/175 https://lore.kernel.org/patchwork/patch/745784/ Note that Heinrichs address is mangled in lore (imported from gmane?, but lkml and patchwork have it right.
I bet it's just a mishap. Rob, can you pick up and apply this patch? Yours, Linus Walleij _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel