diff options
| author | Vamsi Krishna Gattupalli <quic_vgattupa@quicinc.com> | 2022-02-14 16:09:59 +0000 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-03-18 14:11:00 +0100 |
| commit | 54f7c85be3d321b4309bf93ed34f3093d24a5518 (patch) | |
| tree | 243689dafdeb940c325efc2a54521cb4e1a9d8d3 /drivers/misc | |
| parent | e90d911906196bf987492c94e38f10ca611dfd7b (diff) | |
| download | linux-54f7c85be3d321b4309bf93ed34f3093d24a5518.tar.bz2 | |
misc: fastrpc: Add helper function to get list and page
Add helper functions to get invoke buffer and page start pointers.
Signed-off-by: Vamsi Krishna Gattupalli <quic_vgattupa@quicinc.com>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20220214161002.6831-10-srinivas.kandagatla@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc')
| -rw-r--r-- | drivers/misc/fastrpc.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/drivers/misc/fastrpc.c b/drivers/misc/fastrpc.c index ae7586d7956f..2cf6286bb717 100644 --- a/drivers/misc/fastrpc.c +++ b/drivers/misc/fastrpc.c @@ -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; |