Linux kernel stable tree (mirror) https://git.radix-linux.su/kernel/linux.git/atom?h=v6.6.131 2025-11-24T09:30:07+00:00 2025-11-24T09:30:07+00:00 Qinxin Xia xiaqinxin@huawei.com 2025-10-28T12:08:59+00:00 urn:sha1:4c49fe0896617e36f135047fe34dbc4930b73d88 commit 23ee8a2563a0f24cf4964685ced23c32be444ab8 upstream. The padding field in the structure was previously reserved to maintain a stable interface for potential new fields, ensuring compatibility with user-space shared data structures. However,it was accidentally removed by tiantao in a prior commit, which may lead to incompatibility between user space and the kernel. This patch reinstates the padding to restore the original structure layout and preserve compatibility. Fixes: 8ddde07a3d28 ("dma-mapping: benchmark: extract a common header file for map_benchmark definition") Cc: stable@vger.kernel.org Acked-by: Barry Song <baohua@kernel.org> Signed-off-by: Qinxin Xia <xiaqinxin@huawei.com> Reported-by: Barry Song <baohua@kernel.org> Closes: https://lore.kernel.org/lkml/CAGsJ_4waiZ2+NBJG+SCnbNk+nQ_ZF13_Q5FHJqZyxyJTcEop2A@mail.gmail.com/ Reviewed-by: Jonathan Cameron <jonathan.cameron@huawei.com> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Link: https://lore.kernel.org/r/20251028120900.2265511-2-xiaqinxin@huawei.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 2022-03-10T06:41:14+00:00 Tian Tao tiantao6@hisilicon.com 2022-03-08T08:59:10+00:00 urn:sha1:8ddde07a3d285a0f3cec14924446608320fdc013 kernel/dma/map_benchmark.c and selftests/dma/dma_map_benchmark.c have duplicate map_benchmark definitions, which tends to lead to inconsistent changes to map_benchmark on both sides, extract a common header file to avoid this problem. Signed-off-by: Tian Tao <tiantao6@hisilicon.com> Acked-by: Barry Song <song.bao.hua@hisilicon.com> Reviewed-by: Shuah Khan <skhan@linuxfoundation.org> Signed-off-by: Christoph Hellwig <hch@lst.de>