From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mout.gmx.net (mout.gmx.net [212.227.17.20]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0BE1C1DB356 for ; Thu, 5 Mar 2026 08:57:46 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=212.227.17.20 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772701069; cv=none; b=h5f/K2CUDbfNq7qn+tfilY2+Vt0jk0WfdNx61ctBubcoVtGlVCq7Ghz1ihAF+HPgSohSgQgxWR3iBDIYb04G3IasnOqr4Va51+YhwfLun+MpO0jW7nIQZXVL2AHFSkbQ0OcucsNIiTR4LVdS/2CeRFfLM4V5O/unGAtktg2IL84= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772701069; c=relaxed/simple; bh=CBQBVTne5hqfhnfdOMiZ9ySAGvVjcyb3uckBEJpp2p4=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=k57jUNVUOSiHO6EFvn/3NYRh79QuYe1kzxRzdVEnzDVBARradG5v0jJRAWqWZrV2LAxHKIB860GlH+b+zbezQJgl9ikpCZKathK3c+wQbSTPJwzIYGEDR0lz/l9nDieTziWUhyXCDjGG3SsPZtatauowMxDSDnexRMOS9kouLrk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=gmx.de; spf=pass smtp.mailfrom=gmx.de; dkim=pass (2048-bit key) header.d=gmx.de header.i=deller@gmx.de header.b=JBYJhJ7j; arc=none smtp.client-ip=212.227.17.20 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=gmx.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmx.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmx.de header.i=deller@gmx.de header.b="JBYJhJ7j" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmx.de; s=s31663417; t=1772701051; x=1773305851; i=deller@gmx.de; bh=mO9x/IfNI4iOZdeeFuis/vRi1276MqT/h+zlXQyNJRA=; h=X-UI-Sender-Class:Message-ID:Date:MIME-Version:Subject:To:Cc: References:From:In-Reply-To:Content-Type: Content-Transfer-Encoding:cc:content-transfer-encoding: content-type:date:from:message-id:mime-version:reply-to:subject: to; b=JBYJhJ7juDktzaqBvT0MzbgCJzGkFs3i3jd2sD4pDswBzvcuF0LfJNn9UNXLv2jP gGd4efMR36L43zpmJ6JM01eMwiybE9Uwnx/Fl4YhPE3bJZzf5agoa2bzgSt9Dux1T 7a3HVamQQExat1qNZGUVezpsPtPHGABFjpJuA6zlSGTaCwzMjexQ0AAZExnmy88jR L9Epi1y+9LFTvdW6JeGI37DZ7xek5U+Y31nfrqNORU+Fc8H+f9RKF/qEDr0zyLXJz lmQGbF5iztpkDXHVxQUaDTI33w6Lchen2if1V4j42Za355MBUmSKaXh8mkbP9tNb6 klJSR3P4VVWZOnDXIw== X-UI-Sender-Class: 724b4f7f-cbec-4199-ad4e-598c01a50d3a Received: from client.hidden.invalid by mail.gmx.net (mrgmx105 [212.227.17.168]) with ESMTPSA (Nemesis) id 1M5wLT-1w0ZcX2x59-008rd8; Thu, 05 Mar 2026 09:57:30 +0100 Message-ID: Date: Thu, 5 Mar 2026 09:57:29 +0100 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: drivers/video/fbdev/au1100fb.c:448:46: error: implicit declaration of function 'KSEG1ADDR'; did you mean 'CKSEG1ADDR'? To: =?UTF-8?Q?Uwe_Kleine-K=C3=B6nig?= , Helge Deller Cc: kernel test robot , oe-kbuild-all@lists.linux.dev, linux-kernel@vger.kernel.org References: <202603042127.PT6LuKqi-lkp@intel.com> Content-Language: en-US From: Helge Deller Autocrypt: addr=deller@gmx.de; keydata= xsFNBF3Ia3MBEAD3nmWzMgQByYAWnb9cNqspnkb2GLVKzhoH2QD4eRpyDLA/3smlClbeKkWT HLnjgkbPFDmcmCz5V0Wv1mKYRClAHPCIBIJgyICqqUZo2qGmKstUx3pFAiztlXBANpRECgwJ r+8w6mkccOM9GhoPU0vMaD/UVJcJQzvrxVHO8EHS36aUkjKd6cOpdVbCt3qx8cEhCmaFEO6u CL+k5AZQoABbFQEBocZE1/lSYzaHkcHrjn4cQjc3CffXnUVYwlo8EYOtAHgMDC39s9a7S90L 69l6G73lYBD/Br5lnDPlG6dKfGFZZpQ1h8/x+Qz366Ojfq9MuuRJg7ZQpe6foiOtqwKym/zV dVvSdOOc5sHSpfwu5+BVAAyBd6hw4NddlAQUjHSRs3zJ9OfrEx2d3mIfXZ7+pMhZ7qX0Axlq Lq+B5cfLpzkPAgKn11tfXFxP+hcPHIts0bnDz4EEp+HraW+oRCH2m57Y9zhcJTOJaLw4YpTY GRUlF076vZ2Hz/xMEvIJddRGId7UXZgH9a32NDf+BUjWEZvFt1wFSW1r7zb7oGCwZMy2LI/G aHQv/N0NeFMd28z+deyxd0k1CGefHJuJcOJDVtcE1rGQ43aDhWSpXvXKDj42vFD2We6uIo9D 1VNre2+uAxFzqqf026H6cH8hin9Vnx7p3uq3Dka/Y/qmRFnKVQARAQABzRxIZWxnZSBEZWxs 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compilable on non-mips platforms >>> date: 13 days ago >>> config: mips-randconfig-r052-20260304 (https://download.01.org/0day-ci= /archive/20260304/202603042127.PT6LuKqi-lkp@intel.com/config) >>> compiler: mips64-linux-gcc (GCC) 14.3.0 >>> reproduce (this is a W=3D1 build): (https://download.01.org/0day-ci/ar= chive/20260304/202603042127.PT6LuKqi-lkp@intel.com/reproduce) >>> >>> If you fix the issue in a separate patch/commit (i.e. not just a new v= ersion of >>> the same patch/commit), kindly add following tags >>> | Reported-by: kernel test robot >>> | Closes: https://lore.kernel.org/oe-kbuild-all/202603042127.PT6LuKqi-= lkp@intel.com/ >>> >>> All error/warnings (new ones prefixed by >>): >>> >>> drivers/video/fbdev/au1100fb.c: In function 'au1100fb_drv_probe': >>>>> drivers/video/fbdev/au1100fb.c:448:46: error: implicit declaration o= f function 'KSEG1ADDR'; did you mean 'CKSEG1ADDR'? [-Wimplicit-function-de= claration] >>> 448 | fbdev->regs =3D (struct au1100fb_regs*)KSEG1ADDR(f= bdev->info.fix.mmio_start); >>> | ^~~~~~~~~ >>> | CKSEG1ADDR >>>>> drivers/video/fbdev/au1100fb.c:448:23: warning: cast to pointer from= integer of different size [-Wint-to-pointer-cast] >>> 448 | fbdev->regs =3D (struct au1100fb_regs*)KSEG1ADDR(f= bdev->info.fix.mmio_start); >>> | ^ >> >> I've pushed the patch below into the fbdev git tree. >> It should (hopefully) fix the issue. >> >> Helge >> >> >> From: Helge Deller >> Subject: [PATCH] fbdev: au1100fb: Fix build on MIPS64 >> >> Fix an error reported by the kernel test robot: >> au1100fb.c: error: implicit declaration of function 'KSEG1ADDR'; did = you mean 'CKSEG1ADDR'? >> >> The header asm/mach-au1x00/au1000.h is unused apart from pulling in >> (for mdelay()) and (for KSEG1ADDR()). Then >> the only platform specific part in the driver is the usage of the KSEG1= ADDR >> macro, which for the non-mips case can be stubbed. >=20 > This paragraph is copied from 6f366e86481a and doesn't make sense here. Yes, I noticed that later and removed it already. > I'd write something like: >=20 > arch/mips/include/asm/addrspace.h defines KSEG1ADDR only for 32 bit > configurations. So provide its compile-test stub also for 64bit > mips builds. Ok, added. >> Fixes: 6f366e86481a ("fbdev: au1100fb: Make driver compilable on non-mi= ps platforms") >> Reported-by: kernel test robot >> Closes: https://lore.kernel.org/oe-kbuild-all/202603042127.PT6LuKqi-lkp= @intel.com/ >> Signed-off-by: Helge Deller >> Cc: Uwe Kleine-K=C3=B6nig >> >> diff --git a/drivers/video/fbdev/au1100fb.c b/drivers/video/fbdev/au110= 0fb.c >> index 1a04154bc535..3b104d377d28 100644 >> --- a/drivers/video/fbdev/au1100fb.c >> +++ b/drivers/video/fbdev/au1100fb.c >> @@ -380,7 +380,7 @@ static struct au1100fb_panel known_lcd_panels[] =3D >> #define panel_is_color(panel) (panel->control_base & LCD_CONTROL_PC) >> #define panel_swap_rgb(panel) (panel->control_base & LCD_CONTROL_CCO) >> =20 >> -#if defined(CONFIG_COMPILE_TEST) && !defined(CONFIG_MIPS) >> +#if defined(CONFIG_COMPILE_TEST) && !(defined(CONFIG_MIPS) && !defined= (CONFIG_64BIT)) >=20 > The condition is equivalent to >=20 > defined(CONFIG_COMPILE_TEST) && (!defined(CONFIG_MIPS) || defined(CONFI= G_64BIT)) >=20 > which is logically a bit easier, but I'm unsure if it's easier to > understand (IMHO both are bad). Yes, both are bad. I changed it to your proposal. =20 >> /* This is only defined to be able to compile this driver on non-mips= platforms */ >=20 > Maybe adapt the comment here, too? Something like: >=20 > /* > * KSEG1ADDR() is defined in arch/mips/include/asm/addrspace.h > * for 32 bit configurations. Provide a stub for compile testing > * on other platforms. > */ done. I've updated the patch in the fbdev git tree, which you can find here: https://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev.git/log= /?h=3Dfor-next I'll keep the patch a few days in there and will push next week. Helge