From 41899dcd1d284cd4211beffb335bb3ccd1eee80e Mon Sep 17 00:00:00 2001 From: Geert Uytterhoeven Date: Fri, 1 Mar 2024 22:02:26 +0100 Subject: [PATCH] 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 Reviewed-by: John Paul Adrian Glaubitz Link: https://lore.kernel.org/r/82d5efdde44f9489c5a7d11d0a19750445116c95.1709326528.git.geert+renesas@glider.be Signed-off-by: John Paul Adrian Glaubitz --- arch/sh/drivers/dma/dma-api.c | 27 --------------------------- 1 file changed, 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 };