linux-kernel - Re: blackfin compile error

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Date:	Sun, 2 Dec 2007 17:30:43 -0800
From:	David Brownell <david-b@...bell.net>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	"Bryan Wu" <cooloney.lkml@...il.com>,
	"Adrian Bunk" <bunk@...nel.org>, "Bryan Wu" <bryan.wu@...log.com>,
	linux-kernel@...r.kernel.org
Subject: Re: blackfin compile error

On Saturday 01 December 2007, Andrew Morton wrote:
> I have all these:
> 
> spi-at25-driver-is-for-eeprom-not-flash.patch

I'd be tempted to merge that since it's documentation-only,
and I like to see such stuff merged ASAP.  But otherwise
it's non-essential.

> spi-use-mutex-not-semaphore.patch

Non-essential.

> spi-simplify-spi_sync-calling-convention.patch
> spi-use-simplified-spi_sync-calling-convention.patch

The first one fixes some minor bugs, so would be good to merge.

The second does minor associated cleanup ... non-essential.

> #
> spi-initial-bf54x-spi-support.patch
> spi-bfin-spi-uses-portmux-calls.patch
> spi-spi_bfin-cleanups-error-handling.patch
> spi-spi_bfin-handles-spi_transfercs_change.patch
> spi-spi_bfin-dont-bypass-spi-framework.patch
> spi-spi_bfin-uses-platform-device-resources.patch
> spi-spi_bfin-uses-portmux-for-additional-busses.patch
> spi-spi_bfin-rearrange-portmux-calls.patch
> spi-spi_bfin-change-handling-of-communication-parameters.patch
> spi-spi_bfin-relocate-spin-waits.patch
> spi-spi_bfin-handle-multiple-spi_masters.patch
> spi-spi_bfin-bugfix-for-816-bit-word-sizes.patch
> spi-spi_bfin-update-handling-of-delay-after-deselect.patch
> spi-spi_bfin-resequence-dma-start-stop.patch
> #
> blackfin-spi-driver-use-cpu_relax-to-replace-continue-in-while-busywait.patch
> blackfin-spi-driver-use-void-__iomem-for-regs_base.patch
> blackfin-spi-driver-move-hard-coded-pin_req-to-board-file.patch
> blackfin-spi-driver-reconfigure-speed_hz-and-bits_per_word-in-each-spi-transfer.patch

The fix to the compile error is in the next-to-last of these.
Bryan says they're highly interdependent, and they also
include quite a number of bugfixes (some "critical") that
have been used in Analog's treee for many months now.

That makes sense to me, since they've been bouncing around
for quite a while now.  I'd be OK with merging all of them;
if something breaks, it'd be no worse than the current state
(and would only affect Blackfin).

> atmel_spi-throughput-improvement.patch
> atmel_spi-chain-dma-transfers.patch
> atmel_spi-fix-dmachain-oops-with-debug-enabled.patch

Those can wait; they're performance updates.

> queued for 2.6.25.  If some of them need to be bumped up to 2.6.24: which
> ones and why?

I'd say all those Blackfin patches should go, and the one
calling convention patch, are appropriate as bugfixes.
And the doc patch, unless there's a reason to hold it back.

- Dave

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