From: Christophe Leroy <christophe.leroy@c-s.fr>
To: 王文虎 <wenhu.wang@vivo.com>, "Andrew Donnellan" <ajd@linux.ibm.com>
Cc: Kate Stewart <kstewart@linuxfoundation.org>,
Richard Fontana <rfontana@redhat.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
linux-kernel@vger.kernel.org, wangwenhu <wenhu.pku@gmail.com>,
Paul Mackerras <paulus@samba.org>,
trivial@kernel.org, Thomas Gleixner <tglx@linutronix.de>,
linuxppc-dev@lists.ozlabs.org, lonehugo@hotmail.com
Subject: Re: [PATCH] powerpc/sysdev: fix compile errors
Date: Tue, 21 Jan 2020 09:37:07 +0100 [thread overview]
Message-ID: <d3b340dc-54df-24f6-2831-50456beea7ab@c-s.fr> (raw)
In-Reply-To: <ANcAOwAACK7otVnG7VF8E4rQ.3.1579589949706.Hmail.wenhu.wang@vivo.com>
Le 21/01/2020 à 07:59, 王文虎 a écrit :
> 发件人:Andrew Donnellan <ajd@linux.ibm.com>
> 发送日期:2020-01-21 14:13:07
> 收件人:wangwenhu <wenhu.pku@gmail.com>,Benjamin Herrenschmidt <benh@kernel.crashing.org>,Paul Mackerras <paulus@samba.org>,Michael Ellerman <mpe@ellerman.id.au>,Kate Stewart <kstewart@linuxfoundation.org>,Greg Kroah-Hartman <gregkh@linuxfoundation.org>,Richard Fontana <rfontana@redhat.com>,Thomas Gleixner <tglx@linutronix.de>,linuxppc-dev@lists.ozlabs.org,linux-kernel@vger.kernel.org
> 抄送人:trivial@kernel.org,lonehugo@hotmail.com,wenhu.wang@vivo.com
> 主题:Re: [PATCH] powerpc/sysdev: fix compile errors>On 21/1/20 4:31 pm, wangwenhu wrote:
>>> From: wangwenhu <wenhu.wang@vivo.com>
>>>
>>> Include arch/powerpc/include/asm/io.h into fsl_85xx_cache_sram.c to
>>> fix the implicit declaration compile errors when building Cache-Sram.
>>>
>>> arch/powerpc/sysdev/fsl_85xx_cache_sram.c: In function ‘instantiate_cache_sram’:
>>> arch/powerpc/sysdev/fsl_85xx_cache_sram.c:97:26: error: implicit declaration of function ‘ioremap_coherent’; did you mean ‘bitmap_complement’? [-Werror=implicit-function-declaration]
>>> cache_sram->base_virt = ioremap_coherent(cache_sram->base_phys,
>>> ^~~~~~~~~~~~~~~~
>>> bitmap_complement
>>> arch/powerpc/sysdev/fsl_85xx_cache_sram.c:97:24: error: assignment makes pointer from integer without a cast [-Werror=int-conversion]
>>> cache_sram->base_virt = ioremap_coherent(cache_sram->base_phys,
>>> ^
>>> arch/powerpc/sysdev/fsl_85xx_cache_sram.c:123:2: error: implicit declaration of function ‘iounmap’; did you mean ‘roundup’? [-Werror=implicit-function-declaration]
>>> iounmap(cache_sram->base_virt);
>>> ^~~~~~~
>>> roundup
>>> cc1: all warnings being treated as errors
>>>
>>> Signed-off-by: wangwenhu <wenhu.wang@vivo.com>
>>
>> How long has this code been broken for?
>
> It's been broken almost 15 months since the commit below:
> "commit aa91796ec46339f2ed53da311bd3ea77a3e4dfe1
> Author: Christophe Leroy <christophe.leroy@c-s.fr>
> Date: Tue Oct 9 13:51:41 2018 +0000
>
> powerpc: don't use ioremap_prot() nor __ioremap() unless really needed."
>
> And we are working on it now for further development.
That's pretty surprising. That commit didn't change the iounmap(). It
only replaced ioremap_prot() by ioremap_coherent(). Both are defined in io.h
Christophe
>
>>
>>> ---
>>> arch/powerpc/sysdev/fsl_85xx_cache_sram.c | 1 +
>>> 1 file changed, 1 insertion(+)
>>>
>>> diff --git a/arch/powerpc/sysdev/fsl_85xx_cache_sram.c b/arch/powerpc/sysdev/fsl_85xx_cache_sram.c
>>> index f6c665dac725..29b6868eff7d 100644
>>> --- a/arch/powerpc/sysdev/fsl_85xx_cache_sram.c
>>> +++ b/arch/powerpc/sysdev/fsl_85xx_cache_sram.c
>>> @@ -17,6 +17,7 @@
>>> #include <linux/of_platform.h>
>>> #include <asm/pgtable.h>
>>> #include <asm/fsl_85xx_cache_sram.h>
>>> +#include <asm/io.h>
>>>
>>> #include "fsl_85xx_cache_ctlr.h"
>>>
>>
>> --
>> Andrew Donnellan OzLabs, ADL Canberra
>> ajd@linux.ibm.com IBM Australia Limited
>>
>
> Wenhu
>
next prev parent reply other threads:[~2020-01-21 8:37 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-01-21 5:31 [PATCH] powerpc/sysdev: fix compile errors wangwenhu
2020-01-21 5:58 ` Christophe Leroy
2020-01-21 6:13 ` Andrew Donnellan
2020-01-21 6:59 ` 王文虎
2020-01-21 8:21 ` Christophe Leroy
2020-01-21 8:37 ` Christophe Leroy [this message]
2020-02-18 10:25 ` 王文虎
2020-03-02 5:37 WANG Wenhu
2020-03-02 6:38 ` Christophe Leroy
2020-05-18 10:29 ` Jiri Kosina
2020-05-18 10:32 ` Jiri Kosina
2020-05-18 10:36 ` Christophe Leroy
2020-05-18 11:37 ` Michael Ellerman
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