linux-kernel - Re: [PATCH 3.19 000/177] 3.19.7-stable review

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Date:	Thu, 7 May 2015 11:56:44 +0200
From:	Boris Brezillon <boris.brezillon@...e-electrons.com>
To:	Luis Henriques <luis.henriques@...onical.com>
Cc:	Tyler Baker <tyler.baker@...aro.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	torvalds@...ux-foundation.org,
	Andrew Morton <akpm@...ux-foundation.org>, linux@...ck-us.net,
	shuah.kh@...sung.com, stable@...r.kernel.org,
	Mike Turquette <mturquette@...aro.org>
Subject: Re: [PATCH 3.19 000/177] 3.19.7-stable review

Luis, Tyler,

On Thu, 7 May 2015 09:55:53 +0100
Luis Henriques <luis.henriques@...onical.com> wrote:

> On Wed, May 06, 2015 at 10:25:17PM -0700, Tyler Baker wrote:
> > 
> > Locally I've reverted c67881fc890916206e723329e774391c6ed354ce on top
> > of v3.19.7 and confirmed that my at91-sama5d3_xplained boots that
> > kernel successfully[4].
> > 
> 
> And that makes sense as commit 1c8e600440c7 ("clk: Add rate
> constraints to clocks") isn't in 3.19.  This commit changes the
> signature of .determine_rate to include the 2 extra args present in
> at91sam9x5_clk_usb_determine_rate() after commit
> c67881fc890916206e723329e774391c6ed354ce.

Oops, indeed. I shouldn't have tagged this commit for stable.
Below is a patch fixing this problem.
Sorry for the inconvenience.

Best Regards,

Boris

-- >8 --
>From 73a2cf633be185570c7df689afedaebed86d8451 Mon Sep 17 00:00:00 2001
Subject: [PATCH] clk: at91: usb: fix determine_rate prototype

Commit c67881fc890916206e723329e774391c6ed354ce is a backport of
0b67c43ce36a9964f1d5e3f973ee19eefd3f9f8f upstream commit, fixing a
bug on clk rate change propagation.
But in 4.0 ->determine_rate() prototype has changed, thus introducing
a prototype mismatch when applying it on 3.19.

Signed-off-by: Boris Brezillon <boris.brezillon@...e-electrons.com>
---
 drivers/clk/at91/clk-usb.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/clk/at91/clk-usb.c b/drivers/clk/at91/clk-usb.c
index 0b7c3e8..0283a57 100644
--- a/drivers/clk/at91/clk-usb.c
+++ b/drivers/clk/at91/clk-usb.c
@@ -58,8 +58,6 @@ static unsigned long at91sam9x5_clk_usb_recalc_rate(struct clk_hw *hw,
 
 static long at91sam9x5_clk_usb_determine_rate(struct clk_hw *hw,
 					      unsigned long rate,
-					      unsigned long min_rate,
-					      unsigned long max_rate,
 					      unsigned long *best_parent_rate,
 					      struct clk_hw **best_parent_hw)
 {
-- 
1.9.1

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