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H A Dcapsule.cdiff 91c1c092f27da4164d55ca81e0a483108f8a3235 Mon Dec 07 10:33:33 CST 2020 Ard Biesheuvel <ardb@kernel.org> efi: capsule: use atomic kmap for transient sglist mappings

Don't use the heavy-weight kmap() API to create short-lived mappings
of the scatter-gather list entries that are released as soon as the
entries are written. Instead, use kmap_atomic(), which is more suited
to this purpose.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>