+ kernel-dma-remove-unnecessary-unmap_kernel_range.patch added to -mm tree

+ kernel-dma-remove-unnecessary-unmap_kernel_range.patch added to -mm tree

[akpm]

The patch titled
     Subject: kernel/dma: remove unnecessary unmap_kernel_range
has been added to the -mm tree.  Its filename is
     kernel-dma-remove-unnecessary-unmap_kernel_range.patch

This patch should soon appear at
    https://ozlabs.org/~akpm/mmots/broken-out/kernel-dma-remove-unnecessary-unmap_kernel_range.patch
and later at
    https://ozlabs.org/~akpm/mmotm/broken-out/kernel-dma-remove-unnecessary-unmap_kernel_range.patch

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------------------------------------------------------
From: Nicholas Piggin <npiggin@gmail.com>
Subject: kernel/dma: remove unnecessary unmap_kernel_range

vunmap will remove ptes.

Link: https://lkml.kernel.org/r/20210322021806.892164-3-npiggin@gmail.com
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Cc: Cédric Le Goater <clg@kaod.org>
Cc: Uladzislau Rezki <urezki@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 kernel/dma/remap.c |    1 -
 1 file changed, 1 deletion(-)

--- a/kernel/dma/remap.c~kernel-dma-remove-unnecessary-unmap_kernel_range
+++ a/kernel/dma/remap.c
@@ -66,6 +66,5 @@ void dma_common_free_remap(void *cpu_add
 		return;
 	}
 
-	unmap_kernel_range((unsigned long)cpu_addr, PAGE_ALIGN(size));
 	vunmap(cpu_addr);
 }
_

Patches currently in -mm which might be from npiggin@gmail.com are

arm-mm-add-missing-pud_page-define-to-2-level-page-tables.patch
mm-vmalloc-fix-huge_vmap-regression-by-enabling-huge-pages-in-vmalloc_to_page.patch
mm-vmalloc-fix-huge_vmap-regression-by-enabling-huge-pages-in-vmalloc_to_page-fix.patch
mm-apply_to_pte_range-warn-and-fail-if-a-large-pte-is-encountered.patch
mm-vmalloc-rename-vmap__range-vmap_pages__range.patch
mm-ioremap-rename-ioremap__range-to-vmap__range.patch
mm-huge_vmap-arch-support-cleanup.patch
powerpc-inline-huge-vmap-supported-functions.patch
arm64-inline-huge-vmap-supported-functions.patch
x86-inline-huge-vmap-supported-functions.patch
mm-vmalloc-provide-fallback-arch-huge-vmap-support-functions.patch
mm-move-vmap_range-from-mm-ioremapc-to-mm-vmallocc.patch
mm-vmalloc-add-vmap_range_noflush-variant.patch
mm-vmalloc-hugepage-vmalloc-mappings.patch
powerpc-64s-radix-enable-huge-vmalloc-mappings.patch
mm-vmalloc-remove-map_kernel_range.patch
kernel-dma-remove-unnecessary-unmap_kernel_range.patch
powerpc-xive-remove-unnecessary-unmap_kernel_range.patch
mm-vmalloc-remove-unmap_kernel_range.patch
mm-vmalloc-improve-allocation-failure-error-messages.patch