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| author | Ezequiel Garcia <ezequiel.garcia@free-electrons.com> | 2014-08-27 15:52:54 +0200 |
|---|---|---|
| committer | Vinod Koul <vinod.koul@intel.com> | 2014-09-23 16:47:01 +0200 |
| commit | 37380b980e2db2e0dfdb920140c75f3cf2e98a27 (patch) | |
| tree | 011d1895d4a2602e26ba75f874b8857bd2a81ac3 /drivers/dma | |
| parent | dma: mv_xor: Reduce interrupts by enabling EOD only when needed (diff) | |
| download | linux-37380b980e2db2e0dfdb920140c75f3cf2e98a27.tar.xz linux-37380b980e2db2e0dfdb920140c75f3cf2e98a27.zip | |
dma: mv_xor: Remove dead code
The driver currently defines the USE_TIMER macro, but the timer-feature
is never used in the code. The XOR and CRC32 results are never used.
The 'unmap_xxx' fields are no longer needed, they were made obsolete
in commit: 54f8d501e842 dmaengine: remove DMA unmap from drivers.
Let's remove all this dead code.
Signed-off-by: Ezequiel Garcia <ezequiel.garcia@free-electrons.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'drivers/dma')
| -rw-r--r-- | drivers/dma/mv_xor.c | 2 | ||||
| -rw-r--r-- | drivers/dma/mv_xor.h | 20 |
2 files changed, 0 insertions, 22 deletions
diff --git a/drivers/dma/mv_xor.c b/drivers/dma/mv_xor.c index cbc90e5df7ff..744a0077e5aa 100644 --- a/drivers/dma/mv_xor.c +++ b/drivers/dma/mv_xor.c @@ -517,8 +517,6 @@ mv_xor_prep_dma_xor(struct dma_chan *chan, dma_addr_t dest, dma_addr_t *src, sw_desc->type = DMA_XOR; sw_desc->async_tx.flags = flags; mv_desc_init(sw_desc, dest, len, flags); - sw_desc->unmap_src_cnt = src_cnt; - sw_desc->unmap_len = len; while (src_cnt--) mv_desc_set_src_addr(sw_desc, src_cnt, src[src_cnt]); } diff --git a/drivers/dma/mv_xor.h b/drivers/dma/mv_xor.h index 21b0828f9697..de400365bc49 100644 --- a/drivers/dma/mv_xor.h +++ b/drivers/dma/mv_xor.h @@ -23,7 +23,6 @@ #include <linux/dmaengine.h> #include <linux/interrupt.h> -#define USE_TIMER #define MV_XOR_POOL_SIZE PAGE_SIZE #define MV_XOR_SLOT_SIZE 64 #define MV_XOR_THRESHOLD 1 @@ -117,10 +116,6 @@ struct mv_xor_chan { struct list_head all_slots; int slots_allocated; struct tasklet_struct irq_tasklet; -#ifdef USE_TIMER - unsigned long cleanup_time; - u32 current_on_last_cleanup; -#endif }; /** @@ -132,12 +127,8 @@ struct mv_xor_chan { * @phys: hardware address of the hardware descriptor chain * @slot_used: slot in use or not * @idx: pool index - * @unmap_src_cnt: number of xor sources - * @unmap_len: transaction bytecount * @tx_list: list of slots that make up a multi-descriptor transaction * @async_tx: support for the async_tx api - * @xor_check_result: result of zero sum - * @crc32_result: result crc calculation */ struct mv_xor_desc_slot { struct list_head slot_node; @@ -147,18 +138,7 @@ struct mv_xor_desc_slot { void *hw_desc; u16 slot_used; u16 idx; - u16 unmap_src_cnt; - u32 value; - size_t unmap_len; struct dma_async_tx_descriptor async_tx; - union { - u32 *xor_check_result; - u32 *crc32_result; - }; -#ifdef USE_TIMER - unsigned long arrival_time; - struct timer_list timeout; -#endif }; /* |