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| author |   Catalin Marinas <catalin.marinas@arm.com> | 2010-06-10 17:02:12 +0100 |
|---|---|---|
| committer |   Jeff Garzik <jgarzik@redhat.com> | 2010-06-10 16:06:48 -0400 |
| commit | 1082345290dbc66c19877662cb24c18ee4ae1296 (patch) | |
| tree | 601a05fd1e26e161c4f60bef35dab7411dac0e5b /lib/dynamic_debug.c | |
| parent | sata_sil24: memset() overflow (diff) | |
| download | linux-dev-1082345290dbc66c19877662cb24c18ee4ae1296.tar.xz linux-dev-1082345290dbc66c19877662cb24c18ee4ae1296.zip | |
sata_sil24: Use memory barriers before issuing commands
The data in the cmd_block buffers may reach the main memory after the
writel() to the device ports. This patch introduces two calls to wmb()
to ensure the relative ordering.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Tested-by: Colin Tuckley <colin.tuckley@arm.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Jeff Garzik <jeff@garzik.org>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'lib/dynamic_debug.c')
0 files changed, 0 insertions, 0 deletions