Commit 80f3afd7 authored by Srinivas Kandagatla's avatar Srinivas Kandagatla Committed by Greg Kroah-Hartman
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misc: fastrpc: consider address offset before sending to DSP 



While passing address phy address to DSP, take care of the offset
calculated from virtual address vma.

Fixes: c68cfb71 ("misc: fastrpc: Add support for context Invoke method")
Signed-off-by: default avatarSrinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 977e6c8d

drivers/misc/fastrpc.c

+8 −0
Original line number Diff line number Diff line
@@ -679,8 +679,16 @@ static int fastrpc_get_args(u32 kernel, struct fastrpc_invoke_ctx *ctx) 
		pages[i].size = roundup(len, PAGE_SIZE);



		if (ctx->maps[i]) {

			struct vm_area_struct *vma = NULL;



			rpra[i].pv = (u64) ctx->args[i].ptr;

			pages[i].addr = ctx->maps[i]->phys;



			vma = find_vma(current->mm, ctx->args[i].ptr);

			if (vma)

				pages[i].addr += ctx->args[i].ptr -

						 vma->vm_start;



		} else {

			rlen -= ALIGN(args, FASTRPC_ALIGN) - args;

			args = ALIGN(args, FASTRPC_ALIGN);

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