ALSA: Clean up SG-buffer helper functions and macros

Clean up SG-buffer helper functions and macros.  Helpers take substream
as arguments now.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Jaroslav Kysela <perex@perex.cz>

1 files changed, 4 insertions, 10 deletions

diff --git a/sound/pci/echoaudio/echoaudio.c b/sound/pci/echoaudio/echoaudio.c
index 160d47054922..8dbc5c4ba421 100644
--- a/sound/pci/echoaudio/echoaudio.c
+++ b/sound/pci/echoaudio/echoaudio.c
@@ -490,7 +490,6 @@ static int init_engine(struct snd_pcm_substream *substream,
 {
         struct echoaudio *chip;
         int err, per, rest, page, edge, offs;
-        struct snd_sg_buf *sgbuf;
         struct audiopipe *pipe;
 
         chip = snd_pcm_substream_chip(substream);
@@ -531,10 +530,6 @@ static int init_engine(struct snd_pcm_substream *substream,
                 return err;
         }
 
-        sgbuf = snd_pcm_substream_sgbuf(substream);
-
-        DE_HWP(("pcm_hw_params table size=%d pages=%d\n",
-                sgbuf->size, sgbuf->pages));
         sglist_init(chip, pipe);
         edge = PAGE_SIZE;
         for (offs = page = per = 0; offs < params_buffer_bytes(hw_params);
@@ -543,16 +538,15 @@ static int init_engine(struct snd_pcm_substream *substream,
                 if (offs + rest > params_buffer_bytes(hw_params))
                         rest = params_buffer_bytes(hw_params) - offs;
                 while (rest) {
+                        dma_addr_t addr;
+                        addr = snd_pcm_sgbuf_get_addr(substream, offs);
                         if (rest <= edge - offs) {
-                                sglist_add_mapping(chip, pipe,
-                                                   snd_sgbuf_get_addr(sgbuf, offs),
-                                                   rest);
+                                sglist_add_mapping(chip, pipe, addr, rest);
                                 sglist_add_irq(chip, pipe);
                                 offs += rest;
                                 rest = 0;
                         } else {
-                                sglist_add_mapping(chip, pipe,
-                                                   snd_sgbuf_get_addr(sgbuf, offs),
+                                sglist_add_mapping(chip, pipe, addr,
                                                    edge - offs);
                                 rest -= edge - offs;
                                 offs = edge;