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charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Mon, Jun 10, 2024 at 09:31:10PM -0300, Jason Gunthorpe wrote: > dmam_alloc_coherent() already returns zero'd memory so cfg->strtab.l1_desc > (the list of DMA addresses for the L2 entries) is already zero'd. > > arm_smmu_init_l1_strtab() goes through and calls > arm_smmu_write_strtab_l1_desc() on the newly allocated (and zero'd) struct > arm_smmu_strtab_l1_desc, which ends up computing 'val = 0' and zeroing it > again. > > Remove arm_smmu_init_l1_strtab() and just call devm_kcalloc() from > arm_smmu_init_strtab_2lvl to allocate the companion struct. > > Tested-by: Nicolin Chen > Reviewed-by: Mostafa Saleh > Signed-off-by: Jason Gunthorpe Reviewed-by: Nicolin Chen _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel