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authorSebastian Andrzej Siewior <bigeasy@linutronix.de>2018-07-11 17:21:05 +0200
committerTejun Heo <tj@kernel.org>2018-07-11 19:45:28 +0200
commit23ebda2fc715534d383d59ae6740d4e3ebd43798 (patch)
treea94766bcc0e926fffa87fa941adb25787e1c923f /Documentation
parentata: ahci_platform: allow disabling of hotplug to save power (diff)
downloadlinux-23ebda2fc715534d383d59ae6740d4e3ebd43798.tar.xz
linux-23ebda2fc715534d383d59ae6740d4e3ebd43798.zip
libata: remove ata_sff_data_xfer_noirq()
ata_sff_data_xfer_noirq() is invoked via the ->sff_data_xfer hook. The latter is invoked by ata_pio_sector(), atapi_send_cdb() and __atapi_pio_bytes() which in turn is invoked by ata_sff_hsm_move(). The latter function requires that the "ap->lock" lock is held which needs to be taken with disabled interrupts. There is no need have to have ata_sff_data_xfer_noirq() which invokes ata_sff_data_xfer32() with disabled interrupts because at this point the interrupts are already disabled. Remove the function and its references to it and replace all callers with ata_sff_data_xfer32(). Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/driver-api/libata.rst3
1 files changed, 1 insertions, 2 deletions
diff --git a/Documentation/driver-api/libata.rst b/Documentation/driver-api/libata.rst
index 4adc056f7635..70e180e6b93d 100644
--- a/Documentation/driver-api/libata.rst
+++ b/Documentation/driver-api/libata.rst
@@ -118,8 +118,7 @@ PIO data read/write
All bmdma-style drivers must implement this hook. This is the low-level
operation that actually copies the data bytes during a PIO data
transfer. Typically the driver will choose one of
-:c:func:`ata_sff_data_xfer_noirq`, :c:func:`ata_sff_data_xfer`, or
-:c:func:`ata_sff_data_xfer32`.
+:c:func:`ata_sff_data_xfer`, or :c:func:`ata_sff_data_xfer32`.
ATA command execute
~~~~~~~~~~~~~~~~~~~