Huang Shijie df877fb3f5 mtd: gpmi: do not use the local array to do the DMA transfer ...

The local array feature[] is in the stack. We can see the warning
when we enable the CONFIG_DMA_API_DEBUG:
----------------------------------------------------------
WARNING: at lib/dma-debug.c:950 check_for_stack+0xac/0xf8()
gpmi-nand 112000.gpmi-nand: DMA-API: device driver maps memory fromstack [addr=dc05be34]
Modules linked in:
CPU: 0 PID: 1 Comm: swapper/0 Not tainted 3.10.17-16851-g2414a73 #1324
[<80014cbc>] (unwind_backtrace+0x0/0x138) from [<8001251c>] (show_stack+0x10/0x14)
[<8001251c>] (show_stack+0x10/0x14) from [<8002699c>] (warn_slowpath_common+0x4c/0x68)
[<8002699c>] (warn_slowpath_common+0x4c/0x68) from [<80026a4c>] (warn_slowpath_fmt+0x30/0x40)
[<80026a4c>] (warn_slowpath_fmt+0x30/0x40) from [<8028e2f8>] (check_for_stack+0xac/0xf8)
[<8028e2f8>] (check_for_stack+0xac/0xf8) from [<8028e438>] (debug_dma_map_sg+0xf4/0x188)
[<8028e438>] (debug_dma_map_sg+0xf4/0x188) from [<803968d0>] (prepare_data_dma+0xb8/0x1a8)
[<803968d0>] (prepare_data_dma+0xb8/0x1a8) from [<80397b20>] (gpmi_send_data+0x84/0xfc)
[<80397b20>] (gpmi_send_data+0x84/0xfc) from [<8038c2b4>] (nand_onfi_set_features+0x50/0x74)
[<8038c2b4>] (nand_onfi_set_features+0x50/0x74) from [<80397198>] (gpmi_extra_init+0x90/0x170)
[<80397198>] (gpmi_extra_init+0x90/0x170) from [<8039520c>] (gpmi_nand_probe+0x2f8/0xb3c)
[<8039520c>] (gpmi_nand_probe+0x2f8/0xb3c) from [<8031b974>] (platform_drv_probe+0x18/0x1c)
----------------------------------------------------------

The patch uses the kzalloc to allocate the buffer, and free it when
we do not use it anymore.

Signed-off-by: Huang Shijie <b32955@freescale.com>
Signed-off-by: Brian Norris <computersforpeace@gmail.com>

2014-01-03 11:22:18 -08:00

..

chips

mtd: jedec_probe: fix LH28F640BF definition

2013-08-05 21:04:17 +01:00

devices

mtd: ms02-nv: remove superfluous name cast

2014-01-03 11:22:09 -08:00

lpddr

mtd: lpddr_cmds: make function static

2013-10-27 16:27:03 -07:00

maps

mtd: remove superfluous name casts

2014-01-03 11:22:08 -08:00

nand

mtd: gpmi: do not use the local array to do the DMA transfer

2014-01-03 11:22:18 -08:00

onenand

tree-wide: use reinit_completion instead of INIT_COMPLETION

2013-11-15 09:32:21 +09:00

tests

mtd: nand: add a helper to detect the nand type

2013-10-27 16:27:06 -07:00

ubi

MTD merge for 3.13

2013-11-14 12:31:43 +09:00

afs.c

mtd: introduce mtd_read interface

2012-01-09 18:25:19 +00:00

ar7part.c

mtd: Allow removal of partitioning modules

2013-02-04 09:27:33 +02:00

bcm47xxpart.c

mtd: bcm47xxpart: detect "factory" partition

2013-11-06 23:32:58 -08:00

bcm63xxpart.c

mtd: bcm63xxpart: use nvram for PSI size

2013-08-05 18:59:34 +01:00

cmdlinepart.c

mtd: Allow removal of partitioning modules

2013-02-04 09:27:33 +02:00

ftl.c

mtd: do not use mtd->sync directly

2012-01-09 18:26:21 +00:00

inftlcore.c

mtd: nand: add a helper to detect the nand type

2013-10-27 16:27:06 -07:00

inftlmount.c

mtd: introduce mtd_block_markbad interface

2012-01-09 18:25:48 +00:00

Kconfig

mtd: merge mtdchar module with mtdcore

2013-04-05 13:16:54 +01:00

Makefile

mtd: merge mtdchar module with mtdcore

2013-04-05 13:16:54 +01:00

mtd_blkdevs.c

block_device_operations->release() should return void

2013-05-07 02:16:21 -04:00

mtdblock_ro.c

mtd: Move major number definitions to major.h

2013-11-06 23:32:59 -08:00

mtdblock.c

mtd: Move major number definitions to major.h

2013-11-06 23:32:59 -08:00

mtdchar.c

mtd: mtdchar: return expected errors on mmap() call

2013-11-11 11:18:15 -08:00

mtdconcat.c

mtd: unify initialization of erase_info->fail_addr

2012-03-27 01:02:24 +01:00

mtdcore.c

mtd: remove duplicated include from mtdcore.c

2013-11-06 23:33:12 -08:00

mtdcore.h

mtd: merge mtdchar module with mtdcore

2013-04-05 13:16:54 +01:00

mtdoops.c

mtdoops: don't erase flash at each boot

2012-11-15 15:37:51 +02:00

mtdpart.c

mtd: make mtd_partition.name const

2014-01-03 11:22:09 -08:00

mtdsuper.c

mtd: Move major number definitions to major.h

2013-11-06 23:32:59 -08:00

mtdswap.c

mtd: mtdswap: replace strict_strtoul() with kstrtoul()

2013-08-30 21:52:51 +01:00

nftlcore.c

mtd: nand: add a helper to detect the nand type

2013-10-27 16:27:06 -07:00

nftlmount.c

mtd: introduce mtd_block_markbad interface

2012-01-09 18:25:48 +00:00

ofpart.c

mtd: make mtd_partition.name const

2014-01-03 11:22:09 -08:00

redboot.c

mtd: redboot: remove useless code

2012-03-27 00:24:14 +01:00

rfd_ftl.c

mtd: do not use mtd->sync directly

2012-01-09 18:26:21 +00:00

sm_ftl.c

mtd: sm_ftl: Staticize local symbols

2013-08-30 21:51:25 +01:00

sm_ftl.h

…

ssfdc.c

mtd: nand: add a helper to detect the nand type

2013-10-27 16:27:06 -07:00