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If the NULL test on dev->i2o_dev or i2o_dev is needed, then the dereference
should be after the NULL test.
A simplified version of the semantic match that detects this problem is as
follows (http://coccinelle.lip6.fr/):
// <smpl>
@match exists@
expression x, E;
identifier fld;
@@
* x->fld
... when != \(x = E\|&x\)
* x == NULL
// </smpl>
Signed-off-by: Julia Lawall <julia@diku.dk>
Cc: James Bottomley <James.Bottomley@suse.de>
Cc: Kashyap Desai <kashyap.desai@lsi.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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- (better, more, bigger ...) then -> (...) than
Signed-off-by: Frederik Schwarzer <schwarzerf@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
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This replaces sizeof sense_buffer with SCSI_SENSE_BUFFERSIZE in
several LLDs. It's a preparation for the future changes to remove
sense_buffer array in scsi_cmnd structure.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
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- remove the unnecessary map_single path.
- convert to use the new accessors for the sg lists and the
parameters.
Note: needs to change i2o_dma_map_sg when the chaining sg is ready.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
Acked-by: "Salyzyn, Mark" <mark_salyzyn@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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Correct lots of typos, kernel-doc warnings, & kernel-doc usage in fusion and
i2o drivers.
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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i2o_scsi: handle sysfs failure
i2o_device:
* convert i2o_device_add() to return integer error code
rather than pointer. Fortunately -nobody- checks the return code of
this function, so changing has nil impact.
* handle errors thrown by device_register()
More work in i2o_device remains.
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Cc: Markus Lidel <Markus.Lidel@shadowconnect.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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With Achim patch the last user (gdth) is switched away from scsi_request
so we an kill it now. Also disables some code in i2o_scsi that was
broken since the sg driver stopped using scsi_requests.
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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Fix http://bugzilla.kernel.org/show_bug.cgi?id=5923
When a scsi command failed, an oops would result.
Back-to-back SMART queries would make the Seagate drives unhappy. The
second SMART query would timeout, and the command would be aborted.
Acked-by: Markus Lidel <Markus.Lidel@shadowconnect.com>
Cc: Kenny Simpson <theonetruekenny@yahoo.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Fix some typos and minor code beautifying.
Signed-off-by: Markus Lidel <Markus.Lidel@shadowconnect.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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- Removed some kmalloc's with __GFP_ZERO and replace it with memset()
because it didn't work properly.
- Fixed returned message frame in i2o_cfg_passthru() which caused raidutils
to display wrong error message in case a disk was missing.
- Fixed size of printk() in i2o_scsi.c.
- Fixed get_device() and put_device() in probing of the I2O controller.
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Fix lot of BE <-> LE bugs which prevent it from working on SPARC.
Signed-off-by: Markus Lidel <Markus.Lidel@shadowconnect.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Changed the I2O API to create I2O messages first in kernel memory and then
transfer it at once over the PCI bus instead of sending each quad-word over
the PCI bus.
Signed-off-by: Markus Lidel <Markus.Lidel@shadowconnect.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Changes:
- Added header "core.h" for i2o_core.ko internal definitions
- More sparse fixes
- Changed display of TID's in sysfs attributes from XXX to 0xXXX
- Use the right functions for accessing I/O and normal memory
- Removed error handling of SCSI device errors and let the SCSI layer
take care of it
- Added new device / removed device handling to SCSI-OSM
- Make status access volatile
- Cleaned up activation of I2O controller
- Removed unnecessary wmb() and rmb() calls
- Use own struct i2o_io for I/O memory instead of struct i2o_dma
Signed-off-by: Markus Lidel <Markus.Lidel@shadowconnect.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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and 2400A workaround
Changes:
- Provide SG_IO access to BLOCK and EXECUTIVE class on Adaptec
controllers
- Use PRIVATE messages in SCSI-OSM because on some controllers normal
SCSI class commands like READ or READ CAPACITY cause errors
- Use new DMA and SG list creation function
- Added workaround to limit sectors per request for Adaptec 2400A
controllers
Signed-off-by: Markus Lidel <Markus.Lidel@shadowconnect.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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and 64-bit DMA support
Changes:
- Added Bus-OSM which could be used by user space programs to reset a
channel on the controller
- Make ioctl's in Config-OSM obsolete in prefer for sysfs attributes and
move those to its own file
- Added sysfs attribute for firmware read and write access for I2O
controllers
- Added special handling of firmware read and write access for Adaptec
controllers
- Added vendor id and product id as sysfs-attribute to Executive classes
- Added automatic notification of LCT change handling to Exec-OSM
- Added flushing function to Block-OSM for later barrier implementation
- Use PRIVATE messages for Block access on Adaptec controllers, which are
faster then BLOCK class access
- Cleaned up support for Promise controller
- New messages are now detected using the IRQ status register as
suggested by the I2O spec
- Added i2o_dma_high() and i2o_dma_low() functions
- Added facility for SG tablesize calculation when using 32-bit and
64-bit DMA addresses
- Added i2o_dma_map_single() and i2o_dma_map_sg() which could build the
SG list for 32-bit as well as 64-bit DMA addresses
Signed-off-by: Markus Lidel <Markus.Lidel@shadowconnect.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Changes:
- Removed unnecessary checking of NULL before calling kfree()
- Make some functions static
- Changed pr_debug() into osm_debug()
- Use i2o_msg_in_to_virt() for getting a pointer to the message frame
- Cleaned up some comments
- Changed some le32_to_cpu() into readl() where necessary
- Make error messages of OSM's look the same
- Cleaned up error handling in i2o_block_end_request()
- Removed unused error handling of failed messages in Block-OSM, which
are not allowed by the I2O spec
- Corrected the blocksize detection in i2o_block
- Added hrt and lct sysfs-attribute to controller
- Call done() function in SCSI-OSM after freeing DMA buffers
- Removed unneeded variable for message size calculation in
i2o_scsi_queuecommand()
- Make some changes to remove sparse warnings
- Reordered some functions
- Cleaned up controller initialization
- Replaced some magic numbers by defines
- Removed unnecessary dma_sync_single_for_cpu() call on coherent DMA
- Removed some unused fields in i2o_controller and removed some unused
functions
Signed-off-by: Markus Lidel <Markus.Lidel@shadowconnect.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Changes:
- Fixed sysfs bug where user and parent links where added to the I2O
device itself
- Fixed bug when calculating TID for the event handler and cleaned up the
workflow of i2o_driver_dispatch()
- Fixed oops when no I2O device could be found for an event delivered to
Exec-OSM
- Fixed initialization of spinlock in Exec-OSM
- Fixed memory leak in i2o_cfg_passthru() and i2o_cfg_passthru()
- Removed MTRR support
- Added PCI ID of Promise SX6000 with firmware >= 1.20.x.x
- Turn of caching for ioremapped memory of in_queue
- Added initialization sequence for Promise controllers
- Moved definition of u8 / u16 / u32 for raidutils before first use
Signed-off-by: Markus Lidel <Markus.Lidel@shadowconnect.com>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.
Let it rip!
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