Patch "mm: Remove examples from enum zone_type comment" has been added to the 5.10-stable tree

[gregkh at linuxfoundation.org]

This is a note to let you know that I've just added the patch titled

    mm: Remove examples from enum zone_type comment

to the 5.10-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     mm-remove-examples-from-enum-zone_type-comment.patch
and it can be found in the queue-5.10 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable at vger.kernel.org> know about it.


>From foo at baz Sun Mar  7 04:22:37 PM CET 2021
From: Jing Xiangfeng <jingxiangfeng at huawei.com>
Date: Wed, 3 Mar 2021 15:33:19 +0800
Subject: mm: Remove examples from enum zone_type comment
To: <gregkh at linuxfoundation.org>, <catalin.marinas at arm.com>, <will at kernel.org>, <akpm at linux-foundation.org>, <nsaenzjulienne at suse.de>, <paul.walmsley at sifive.com>, <palmer at dabbelt.com>, <aou at eecs.berkeley.edu>, <rppt at kernel.org>, <lorenzo.pieralisi at arm.com>, <guohanjun at huawei.com>, <sudeep.holla at arm.com>, <rjw at rjwysocki.net>, <lenb at kernel.org>, <song.bao.hua at hisilicon.com>, <ardb at kernel.org>, <anshuman.khandual at arm.com>, <bhelgaas at google.com>, <guro at fb.com>, <robh+dt at kernel.org>
Cc: <stable at vger.kernel.org>, <linux-arm-kernel at lists.infradead.org>, <frowand.list at gmail.com>, <devicetree at vger.kernel.org>, <linux-kernel at vger.kernel.org>, <linux-mm at kvack.org>, <linux-riscv at lists.infradead.org>, <jingxiangfeng at huawei.com>, <wangkefeng.wang at huawei.com>, Christoph Hellwig <hch at lst.de>
Message-ID: <20210303073319.2215839-8-jingxiangfeng at huawei.com>

From: Nicolas Saenz Julienne <nsaenzjulienne at suse.de>

commit 04435217f96869ac3a8f055ff68c5237a60bcd7e upstream

We can't really list every setup in common code. On top of that they are
unlikely to stay true for long as things change in the arch trees
independently of this comment.

Suggested-by: Christoph Hellwig <hch at lst.de>
Signed-off-by: Nicolas Saenz Julienne <nsaenzjulienne at suse.de>
Reviewed-by: Christoph Hellwig <hch at lst.de>
Link: https://lore.kernel.org/r/20201119175400.9995-8-nsaenzjulienne@suse.de
Signed-off-by: Catalin Marinas <catalin.marinas at arm.com>
Cc: <stable at vger.kernel.org>
Signed-off-by: Jing Xiangfeng <jingxiangfeng at huawei.com>
Signed-off-by: Greg Kroah-Hartman <gregkh at linuxfoundation.org>
---
 include/linux/mmzone.h |   20 --------------------
 1 file changed, 20 deletions(-)

--- a/include/linux/mmzone.h
+++ b/include/linux/mmzone.h
@@ -354,26 +354,6 @@ enum zone_type {
 	 * DMA mask is assumed when ZONE_DMA32 is defined. Some 64-bit
 	 * platforms may need both zones as they support peripherals with
 	 * different DMA addressing limitations.
-	 *
-	 * Some examples:
-	 *
-	 *  - i386 and x86_64 have a fixed 16M ZONE_DMA and ZONE_DMA32 for the
-	 *    rest of the lower 4G.
-	 *
-	 *  - arm only uses ZONE_DMA, the size, up to 4G, may vary depending on
-	 *    the specific device.
-	 *
-	 *  - arm64 has a fixed 1G ZONE_DMA and ZONE_DMA32 for the rest of the
-	 *    lower 4G.
-	 *
-	 *  - powerpc only uses ZONE_DMA, the size, up to 2G, may vary
-	 *    depending on the specific device.
-	 *
-	 *  - s390 uses ZONE_DMA fixed to the lower 2G.
-	 *
-	 *  - ia64 and riscv only use ZONE_DMA32.
-	 *
-	 *  - parisc uses neither.
 	 */
 #ifdef CONFIG_ZONE_DMA
 	ZONE_DMA,


Patches currently in stable-queue which might be from jingxiangfeng at huawei.com are

queue-5.10/of-unittest-add-test-for-of_dma_get_max_cpu_address.patch
queue-5.10/mm-remove-examples-from-enum-zone_type-comment.patch
queue-5.10/arm64-mm-set-zone_dma-size-based-on-devicetree-s-dma-ranges.patch
queue-5.10/of-address-introduce-of_dma_get_max_cpu_address.patch
queue-5.10/arm64-mm-move-zone_dma_bits-initialization-into-zone_sizes_init.patch
queue-5.10/arm64-mm-set-zone_dma-size-based-on-early-iort-scan.patch
queue-5.10/arm64-mm-move-reserve_crashkernel-into-mem_init.patch