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authorPaul Mackerras <paulus@samba.org>2007-12-13 15:11:22 +1100
committerPaul Mackerras <paulus@samba.org>2007-12-19 15:22:02 +1100
commitc61dace9a10a4bc54c764f9f490994a9d7852859 (patch)
tree2a67ac64a47d37f52cb5031365c3fdaf9b73194b /drivers/input/evbug.c
parent33f6e7940691b1c92b276148c48a9551ac07f11d (diff)
[POWERPC] Convert adb.c to use kthread API and not spin on ADB requests
This converts adb.c to use the kthread API. It also changes adb_request so that if the ADBREQ_SYNC flag is specified, we now sleep waiting for the request to finish using an on-stack completion rather than spinning. To implement this, we now require that if the ADBREQ_SYNC flag is set, the `done' parameter must be NULL. All of the existing callers of adb_request that pass ADBREQ_SYNC appear to be in process context and have done == NULL. Doing this allows us to get rid of an awful hack in adb_request() where we used to test whether the request was coming from the adb probe task and use a completion if it was, and otherwise spin. This also gets rid of a static request block that was used if the req parameter to adb_request was NULL. None of the callers do that any more, so the static request block is no longer necessary. Signed-off-by: Paul Mackerras <paulus@samba.org>
Diffstat (limited to 'drivers/input/evbug.c')
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