Alan Cox wrote:
For those that pee themselves you don't need a host flag, you need a
qc_issue hook - you need that hook for the purpose of actually making the
command work, so in the short term making it just return AC_ERR_DEV isn't
exactly hard. Not having the flag and fixing those odd few drivers would
be far more productive.
We are talking about chips whose command set is essentially fixed at
manufacture time.
There are only two of those I know of
- IT821x which already uses qc_issue to filter.
- pata_st412, which uses qc_issue and isn't in tree anyway and probably
never will be.
..
The sata_mv driver will choke the chipset if the TRIM command
involves more than one sector of TRIM data.
Cheers
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