TO: Ludovic Desroches <[email protected]>
CC: Maxime Ripard <[email protected]>
tree: git://github.com/mripard/linux dmaengine-generic-caps
head: d49e9ec6df0243b89641d9c966f448cd3798533a
commit: a0d7f2291bd47b1a39ace988f36eb1d737632304 [13/60] dmaengine: at_xdmac:
split device_control
:::::: branch date: 28 hours ago
:::::: commit date: 28 hours ago
New smatch warnings:
drivers/dma/at_xdmac.c:1158 at_xdmac_device_terminate_all() warn: this loop
depends on readl() succeeding
Old smatch warnings:
drivers/dma/at_xdmac.c:933 at_xdmac_tx_status() warn: inconsistent returns
'spin_lock:&atchan->lock'.
drivers/dma/at_xdmac.c:933 at_xdmac_tx_status() warn: inconsistent returns
'bottom_half:'.
git remote add sunxi git://github.com/mripard/linux
git remote update sunxi
git checkout a0d7f2291bd47b1a39ace988f36eb1d737632304
vim +1158 drivers/dma/at_xdmac.c
e1f7c9ee Ludovic Desroches 2014-10-22 1142
clear_bit(AT_XDMAC_CHAN_IS_PAUSED, &atchan->status);
a0d7f229 Ludovic Desroches 2014-11-13 1143 spin_unlock_bh(&atchan->lock);
a0d7f229 Ludovic Desroches 2014-11-13 1144
a0d7f229 Ludovic Desroches 2014-11-13 1145 return 0;
a0d7f229 Ludovic Desroches 2014-11-13 1146 }
a0d7f229 Ludovic Desroches 2014-11-13 1147
a0d7f229 Ludovic Desroches 2014-11-13 1148 static int
at_xdmac_device_terminate_all(struct dma_chan *chan)
a0d7f229 Ludovic Desroches 2014-11-13 1149 {
a0d7f229 Ludovic Desroches 2014-11-13 1150 struct at_xdmac_desc *desc,
*_desc;
a0d7f229 Ludovic Desroches 2014-11-13 1151 struct at_xdmac_chan *atchan
= to_at_xdmac_chan(chan);
a0d7f229 Ludovic Desroches 2014-11-13 1152 struct at_xdmac
*atxdmac = to_at_xdmac(atchan->chan.device);
e1f7c9ee Ludovic Desroches 2014-10-22 1153
a0d7f229 Ludovic Desroches 2014-11-13 1154 dev_dbg(chan2dev(chan), "%s\n",
__func__);
a0d7f229 Ludovic Desroches 2014-11-13 1155
a0d7f229 Ludovic Desroches 2014-11-13 1156 spin_lock_bh(&atchan->lock);
e1f7c9ee Ludovic Desroches 2014-10-22 1157 at_xdmac_write(atxdmac,
AT_XDMAC_GD, atchan->mask);
e1f7c9ee Ludovic Desroches 2014-10-22 @1158 while (at_xdmac_read(atxdmac,
AT_XDMAC_GS) & atchan->mask)
e1f7c9ee Ludovic Desroches 2014-10-22 1159 cpu_relax();
e1f7c9ee Ludovic Desroches 2014-10-22 1160
e1f7c9ee Ludovic Desroches 2014-10-22 1161 /* Cancel all pending
transfers. */
e1f7c9ee Ludovic Desroches 2014-10-22 1162 list_for_each_entry_safe(desc,
_desc, &atchan->xfers_list, xfer_node)
e1f7c9ee Ludovic Desroches 2014-10-22 1163
at_xdmac_remove_xfer(atchan, desc);
e1f7c9ee Ludovic Desroches 2014-10-22 1164
e1f7c9ee Ludovic Desroches 2014-10-22 1165
clear_bit(AT_XDMAC_CHAN_IS_CYCLIC, &atchan->status);
e1f7c9ee Ludovic Desroches 2014-10-22 1166 spin_unlock_bh(&atchan->lock);
:::::: The code at line 1158 was first introduced by commit
:::::: e1f7c9eee70730d7e6ec77f7ecc76f936e262cf0 dmaengine: at_xdmac: creation
of the atmel eXtended DMA Controller driver
:::::: TO: Ludovic Desroches <[email protected]>
:::::: CC: Vinod Koul <[email protected]>
---
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