mesa: improve free() cleanup in generate_mipmap_compressed()

Free all our temporary buffers in one place at the end of the
function.  Fixes memory leak detected by Coverity.

Note: This is a candidate for the 9.x branches
Cc: mesa-stable@lists.freedesktop.org

Reviewed-by: José Fonseca <jfonseca@vmware.com>
(cherry picked from commit e5f32a0b3a9f8541f0c8ffc5f303612ac9963bb1)
egl: Restore "bogus" DRI2 invalidate event code.

I had removed it in commit 1e7776ca2bc59a6978d9b933d23852d47078dfa8
because it was obviously wrong -- why do we care whether the server is a
version that emits events, if we're not watching for the server's events,
anyway?  And why would you only invalidate on a server that emits
invalidate events, when the comment said to emit invalidates if the server
*doesn't*?  Only, I missed that we otherwise don't flag that our buffers
might have changed at swap time at all, so the driver was only checking
for new buffers when triggered by the Viewport hack.  Of course you don't
expect Viewport to be called after a swap.

So, this is effectively a revert of the previous commit, except that I
dropped the check for only emitting invalidates on a new server -- we
*always* need to invalidate if we're doing a SwapBuffers.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=63435
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: "9.1 and 9.2" <mesa-stable@lists.freedesktop.org>
(cherry picked from commit eed0a80137dfac641adfd39ce316938dbcf2be10)
i965/vs: set up sampler state pointer for Gen4/5.

Fixes broken filter and lod selection for vertex texturing.
(txs/txf only worked properly because they ignore the sampler state
completely)

Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: mesa-stable@lists.freedesktop.org
(cherry picked from commit 97676032c28e20b4c4150c3632794f5bdaa9efad)

Backported-by: Carl Worth <cworth@cworth.org> to compile on 9.1 branch.
i965/vs: Put lod parameter in the correct place for Gen4

This was never visible before due to the bogus sampler state pointer.
Fixes remaining vertex texturing breakage on Gen4.

Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
Cc: mesa-stable@lists.freedesktop.org
(cherry picked from commit cace82b0cdd9b93a21adbb5857f1f69ee0a2f925)
get-pick-list: Allow for non-whitespace between "CC:" and "mesa-stable"

We recently proposed a new syntax for stable-patch nominations such as:

	CC: "9.2 and 9.1" <mesa-stable@lists.freedesktop.org>

and this has already appeared in the wild.

So we extend the regular expression to pick this up as well.
i965/vs: Gen4/5: enable front colors if back colors are written

Fixes undefined results if a back color is written, but the
corresponding front color is not, and only backfacing primitives are
drawn. Results are still undefined if a frontfacing primitive is drawn,
but that's OK.

The other reasonable way to fix this would have been to just pick
the one color slot that was populated, but that dilutes the value of
the tests.

On Gen6+, the fixed function clipper and triangle setup already take
care of this.

Fixes 11 piglits:
spec/glsl-1.10/execution/interpolation/interpolation-none-gl_Back*Color-*

NOTE: This is a candidate for stable branches.

Signed-off-by: Chris Forbes <chrisf@ijw.co.nz>
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
(cherry picked from commit 1ec66f2fb2fea0497efebc1db83c75ec95a816a4)
get-pick-list: Ignore commits which CC mesa-stable unless they say "9.1"

With the recent creation of the 9.2 branch, we're now seeing a steady flow of
new patches to mesa-stable@ intended for that branch. To avoid wasting effort
trying to apply these to 9.1, we now require developers to specifically
mention "9.1" to target the 9.1 branch.
Bump version to 9.1.6
docs: Add release notes for 9.1.6 release
docs: Add 9.1.6 release md5sums
docs: Fix a typo in the 9.1.6 release notes
mesa: Fix MESA_PATCH version