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Re: [PATCH 2/2] MIPS: Optimize TLB handlers for Octeon CPUs

To: Jonas Gorski <>
Subject: Re: [PATCH 2/2] MIPS: Optimize TLB handlers for Octeon CPUs
From: David Daney <>
Date: Wed, 19 Jan 2011 11:41:15 -0800
In-reply-to: <>
Original-recipient: rfc822;
References: <> <> <>
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On 01/19/2011 11:35 AM, Jonas Gorski wrote:
On 28/12/2010, David Daney<>  wrote:
+static bool scratchpad_available(void)
+       return false;
+static int scratchpad_offset(int i)
+       BUG();

This seems to have broken the build for any non-octeon mips build:

   CC      arch/mips/mm/tlbex.o
cc1: warnings being treated as errors
arch/mips/mm/tlbex.c: In function 'scratchpad_offset':
arch/mips/mm/tlbex.c:112: error: no return statement in function
returning non-void

Can you tell me which version of GCC you are using?

I tested it with gcc-4.5.x, BUG() may have problems if builtin_unreachable is not available.

David Daney

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