Commit 54f7c85b authored by Vamsi Krishna Gattupalli's avatar Vamsi Krishna Gattupalli Committed by Greg Kroah-Hartman
Browse files

misc: fastrpc: Add helper function to get list and page 



Add helper functions to get invoke buffer and page start pointers.

Signed-off-by: default avatarVamsi Krishna Gattupalli <quic_vgattupa@quicinc.com>
Signed-off-by: default avatarSrinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220214161002.6831-10-srinivas.kandagatla@linaro.org


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent e90d9119

drivers/misc/fastrpc.c

+12 −3
Original line number Diff line number Diff line
@@ -833,6 +833,16 @@ static int fastrpc_create_maps(struct fastrpc_invoke_ctx *ctx) 
	return 0;

}



static struct fastrpc_invoke_buf *fastrpc_invoke_buf_start(union fastrpc_remote_arg *pra, int len)

{

	return (struct fastrpc_invoke_buf *)(&pra[len]);

}



static struct fastrpc_phy_page *fastrpc_phy_page_start(struct fastrpc_invoke_buf *buf, int len)

{

	return (struct fastrpc_phy_page *)(&buf[len]);

}



static int fastrpc_get_args(u32 kernel, struct fastrpc_invoke_ctx *ctx)

{

	struct device *dev = ctx->fl->sctx->dev;
@@ -860,9 +870,8 @@ static int fastrpc_get_args(u32 kernel, struct fastrpc_invoke_ctx *ctx) 
		return err;



	rpra = ctx->buf->virt;

	list = ctx->buf->virt + ctx->nscalars * sizeof(*rpra);

	pages = ctx->buf->virt + ctx->nscalars * (sizeof(*list) +

		sizeof(*rpra));

	list = fastrpc_invoke_buf_start(rpra, ctx->nscalars);

	pages = fastrpc_phy_page_start(list, ctx->nscalars);

	args = (uintptr_t)ctx->buf->virt + metalen;

	rlen = pkt_size - metalen;

	ctx->rpra = rpra;