From: "Arnd Bergmann" <arnd@arndb.de>
To: "kernel test robot" <lkp@intel.com>,
"Thomas Zimmermann" <tzimmermann@suse.de>,
"Helge Deller" <deller@gmx.de>,
"Geert Uytterhoeven" <geert@linux-m68k.org>,
"Javier Martinez Canillas" <javierm@redhat.com>,
"Daniel Vetter" <daniel@ffwll.ch>,
"Vineet Gupta" <vgupta@kernel.org>,
"Huacai Chen" <chenhuacai@kernel.org>,
"WANG Xuerui" <kernel@xen0n.name>,
"David S . Miller" <davem@davemloft.net>,
"James E . J . Bottomley" <James.Bottomley@hansenpartnership.com>,
"Sam Ravnborg" <sam@ravnborg.org>,
suijingfeng@loongson.cn
Cc: oe-kbuild-all@lists.linux.dev,
Linux-Arch <linux-arch@vger.kernel.org>,
linux-fbdev@vger.kernel.org, linux-ia64@vger.kernel.org,
linux-parisc@vger.kernel.org, linux-kernel@vger.kernel.org,
dri-devel@lists.freedesktop.org, linux-m68k@lists.linux-m68k.org,
loongarch@lists.linux.dev, sparclinux@vger.kernel.org,
linux-snps-arc@lists.infradead.org,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v6 5/6] fbdev: Move framebuffer I/O helpers into <asm/fb.h>
Date: Wed, 10 May 2023 16:15:46 +0200 [thread overview]
Message-ID: <f6b2d541-d235-4e98-afcc-9137fb8afa35@app.fastmail.com> (raw)
In-Reply-To: <202305102136.eMjTSPwH-lkp@intel.com>
On Wed, May 10, 2023, at 16:03, kernel test robot wrote:
>
> cc1: warning: arch/sh/include/mach-hp6xx: No such file or directory
> [-Wmissing-include-dirs]
> cc1: warning: arch/sh/include/mach-hp6xx: No such file or directory
> [-Wmissing-include-dirs]
> In file included from drivers/video/fbdev/hitfb.c:27:
> drivers/video/fbdev/hitfb.c: In function 'hitfb_accel_wait':
>>> arch/sh/include/asm/hd64461.h:18:33: warning: passing argument 1 of 'fb_readw' makes pointer from integer without a cast [-Wint-conversion]
> 18 | #define HD64461_IO_OFFSET(x) (HD64461_IOBASE + (x))
> | ^~~~~~~~~~~~~~~~~~~~~~
> | |
> | unsigned int
> arch/sh/include/asm/hd64461.h:93:33: note: in expansion of macro
> 'HD64461_IO_OFFSET'
> 93 | #define HD64461_GRCFGR HD64461_IO_OFFSET(0x1044)
> /* Accelerator Configuration Register */
> | ^~~~~~~~~~~~~~~~~
> drivers/video/fbdev/hitfb.c:47:25: note: in expansion of macro
> 'HD64461_GRCFGR'
> 47 | while (fb_readw(HD64461_GRCFGR) &
> HD64461_GRCFGR_ACCSTATUS) ;
I think that's a preexisting bug and I have no idea what the
correct solution is. Looking for HD64461 shows it being used
both with inw/outw and readw/writew, so there is no way to have
the correct type. The sh __raw_readw() definition hides this bug,
but that is a problem with arch/sh and it probably hides others
as well.
Arnd
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next prev parent reply other threads:[~2023-05-10 14:16 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-10 11:05 [PATCH v6 0/6] fbdev: Move framebuffer I/O helpers to <asm/fb.h> Thomas Zimmermann
2023-05-10 11:05 ` [PATCH v6 1/6] fbdev/matrox: Remove trailing whitespaces Thomas Zimmermann
[not found] ` <0e13efbf-9a48-6e70-fdf3-8290f28c6dc7@189.cn>
2023-05-11 7:55 ` Thomas Zimmermann
2023-05-11 13:05 ` Helge Deller
2023-05-11 13:10 ` Geert Uytterhoeven
2023-05-11 16:23 ` Helge Deller
2023-05-11 14:27 ` Thomas Zimmermann
2023-05-11 17:02 ` Helge Deller
2023-05-12 7:14 ` Thomas Zimmermann
2023-05-12 10:04 ` Finn Thain
2023-05-10 11:05 ` [PATCH v6 2/6] ipu-v3: Include <linux/io.h> Thomas Zimmermann
2023-05-10 11:05 ` [PATCH v6 3/6] fbdev: Include <linux/io.h> in various drivers Thomas Zimmermann
2023-05-10 11:05 ` [PATCH v6 4/6] fbdev: Include <linux/fb.h> instead of <asm/fb.h> Thomas Zimmermann
2023-05-10 11:05 ` [PATCH v6 5/6] fbdev: Move framebuffer I/O helpers into <asm/fb.h> Thomas Zimmermann
2023-05-10 12:34 ` Geert Uytterhoeven
2023-05-10 14:20 ` Thomas Zimmermann
2023-05-10 14:34 ` Geert Uytterhoeven
2023-05-10 15:11 ` Thomas Zimmermann
2023-05-10 14:03 ` kernel test robot
2023-05-10 14:15 ` Arnd Bergmann [this message]
2023-05-10 14:27 ` Thomas Zimmermann
2023-05-10 15:54 ` Arnd Bergmann
2023-05-11 10:53 ` Thomas Zimmermann
2023-05-11 12:35 ` Geert Uytterhoeven
2023-05-11 12:48 ` Arnd Bergmann
2023-05-11 13:22 ` Artur Rojek
2023-05-11 13:40 ` Arnd Bergmann
2023-05-11 13:12 ` Thomas Zimmermann
2023-05-10 11:05 ` [PATCH v6 6/6] fbdev: Rename fb_mem*() helpers Thomas Zimmermann
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