diff options
| author | Geert Uytterhoeven <geert+renesas@glider.be> | 2024-03-02 00:02:26 +0300 |
|---|---|---|
| committer | John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de> | 2024-05-02 13:01:24 +0300 |
| commit | 41899dcd1d284cd4211beffb335bb3ccd1eee80e (patch) | |
| tree | 3dccc8133b5065806ece3665b84f297273da4998 /arch/sh | |
| parent | 74feee2c562149df7e043ead148e0b6559c12917 (diff) | |
| download | linux-41899dcd1d284cd4211beffb335bb3ccd1eee80e.tar.xz | |
sh: dma: Remove unused dmac_search_free_channel()
arch/sh/drivers/dma/dma-api.c:164:5: warning: no previous prototype for 'dmac_search_free_channel' [-Wmissing-prototypes]
dmac_search_free_channel() never had a user in upstream, remove it.
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Link: https://lore.kernel.org/r/82d5efdde44f9489c5a7d11d0a19750445116c95.1709326528.git.geert+renesas@glider.be
Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Diffstat (limited to 'arch/sh')
| -rw-r--r-- | arch/sh/drivers/dma/dma-api.c | 27 |
1 files changed, 0 insertions, 27 deletions
diff --git a/arch/sh/drivers/dma/dma-api.c b/arch/sh/drivers/dma/dma-api.c index 89cd4a3b4cca..f49097fa634c 100644 --- a/arch/sh/drivers/dma/dma-api.c +++ b/arch/sh/drivers/dma/dma-api.c @@ -161,33 +161,6 @@ int request_dma_bycap(const char **dmac, const char **caps, const char *dev_id) } EXPORT_SYMBOL(request_dma_bycap); -int dmac_search_free_channel(const char *dev_id) -{ - struct dma_channel *channel = { 0 }; - struct dma_info *info = get_dma_info(0); - int i; - - for (i = 0; i < info->nr_channels; i++) { - channel = &info->channels[i]; - if (unlikely(!channel)) - return -ENODEV; - - if (atomic_read(&channel->busy) == 0) - break; - } - - if (info->ops->request) { - int result = info->ops->request(channel); - if (result) - return result; - - atomic_set(&channel->busy, 1); - return channel->chan; - } - - return -ENOSYS; -} - int request_dma(unsigned int chan, const char *dev_id) { struct dma_channel *channel = { 0 }; |