From: "Álvaro Fernández Rojas" <noltari@gmail.com>
To: Florian Fainelli <f.fainelli@gmail.com>
Cc: Miquel Raynal <miquel.raynal@bootlin.com>,
tsbogend@alpha.franken.de, bcm-kernel-feedback-list@broadcom.com,
richard@nod.at, vigneshr@ti.com,
Jonas Gorski <jonas.gorski@gmail.com>,
linus.walleij@linaro.org, linux-mips@vger.kernel.org,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-mtd@lists.infradead.org
Subject: Re: [PATCH v2] mtd: parsers: bcm63xx: simplify CFE detection
Date: Thu, 11 Jun 2020 18:14:20 +0200 [thread overview]
Message-ID: <7DC0E349-1319-47FE-8565-9B30C190EACB@gmail.com> (raw)
In-Reply-To: <715b0947-f4dd-0c04-5c52-5da06c04d665@gmail.com>
Hi Florian,
> El 11 jun 2020, a las 17:42, Florian Fainelli <f.fainelli@gmail.com> escribió:
>
>
>
> On 6/11/2020 8:16 AM, Álvaro Fernández Rojas wrote:
>> Hi Miquel,
>>
>>> El 11 jun 2020, a las 9:55, Miquel Raynal <miquel.raynal@bootlin.com> escribió:
>>>
>>> Hi Álvaro,
>>>
>>> Álvaro Fernández Rojas <noltari@gmail.com> wrote on Mon, 8 Jun 2020
>>> 18:06:49 +0200:
>>>
>>>> Instead of trying to parse CFE version string, which is customized by some
>>>> vendors, let's just check that "CFE1" was passed on argument 3.
>>>>
>>>> Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
>>>> Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
>>>> ---
>>>> v2: use CFE_EPTSEAL definition and avoid using an additional funtion.
>>>>
>>>> drivers/mtd/parsers/bcm63xxpart.c | 29 ++++-------------------------
>>>> 1 file changed, 4 insertions(+), 25 deletions(-)
>>>>
>>>> diff --git a/drivers/mtd/parsers/bcm63xxpart.c b/drivers/mtd/parsers/bcm63xxpart.c
>>>> index 78f90c6c18fd..493a75b2f266 100644
>>>> --- a/drivers/mtd/parsers/bcm63xxpart.c
>>>> +++ b/drivers/mtd/parsers/bcm63xxpart.c
>>>> @@ -22,6 +22,9 @@
>>>> #include <linux/mtd/partitions.h>
>>>> #include <linux/of.h>
>>>>
>>>> +#include <asm/bootinfo.h>
>>>> +#include <asm/fw/cfe/cfe_api.h>
>>>
>>> Are you sure both includes are needed?
>>
>> asm/bootinfo.h is needed for fw_arg3 and asm/fw/cfe/cfe_api.h is needed for CFE_EPTSEAL.
>>
>>>
>>> I don't think it is a good habit to include asm/ headers, are you sure
>>> there is not another header doing it just fine?
>>
>> Both are needed unless you want to add another definition of CFE_EPTSEAL value.
>> There are currently two CFE magic definitions, the one in asm/fw/cfe/cfe_api.h and another one in bcm47xxpart.c:
>> https://github.com/torvalds/linux/blob/master/arch/mips/include/asm/fw/cfe/cfe_api.h#L28
>> https://github.com/torvalds/linux/blob/master/drivers/mtd/parsers/bcm47xxpart.c#L33
>
> The caveat with that approach is that this reduces the compilation
> surface to MIPS and BMIPS_GENERIC and BCM63XX only, which is a bit
> small. If we could move the CFE definitions to a shared header, and
> consolidate the value used by bcm47xxpart.c as well, that would allow us
> to build the bcm63xxpart.c file with COMPILE_TEST on other
> architectures. This does not really have functional value, but for
> maintainers like Miquel, it allows them to quickly test their entire
> drivers/mtd/ directory.
I don’t think fw_arg3 available on non mips archs, is it?
I’m happy to move it to a shared header (which would be a good location for this?), but if I’m right it would still be restricted to MIPS.
> --
> Florian
next prev parent reply other threads:[~2020-06-11 16:14 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-08 9:40 [PATCH 0/2] mtd: parsers: bcm63xx: simplify CFE detection Álvaro Fernández Rojas
2020-06-08 9:40 ` [PATCH 1/2] MIPS: BCM63xx: add helper function to detect CFE Álvaro Fernández Rojas
2020-06-08 9:40 ` [PATCH 2/2] mtd: parsers: bcm63xx: simplify CFE detection Álvaro Fernández Rojas
2020-06-08 16:06 ` [PATCH v2] " Álvaro Fernández Rojas
2020-06-11 7:55 ` Miquel Raynal
2020-06-11 15:16 ` Álvaro Fernández Rojas
2020-06-11 15:42 ` Florian Fainelli
2020-06-11 15:46 ` Miquel Raynal
2020-06-11 16:14 ` Álvaro Fernández Rojas [this message]
2020-06-12 7:02 ` Miquel Raynal
2020-06-12 7:30 ` Álvaro Fernández Rojas
2020-06-12 7:33 ` Miquel Raynal
2020-06-12 7:37 ` Álvaro Fernández Rojas
2020-06-12 7:35 ` [PATCH v3] " Álvaro Fernández Rojas
2020-06-15 8:54 ` Miquel Raynal
2020-06-15 9:17 ` [PATCH v4] " Álvaro Fernández Rojas
2020-06-15 16:30 ` Florian Fainelli
2020-06-15 17:38 ` Miquel Raynal
2020-08-14 8:56 ` Guenter Roeck
2020-09-22 3:18 ` Naresh Kamboju
2020-09-22 3:26 ` Guenter Roeck
2020-09-28 14:16 ` Miquel Raynal
2020-09-28 19:35 ` Florian Fainelli
2020-09-29 17:27 ` [PATCH] mtd: parsers: bcm63xx: Do not make it modular Florian Fainelli
2020-10-02 7:15 ` Miquel Raynal
2020-10-11 14:14 ` Guenter Roeck
2020-10-12 7:04 ` Miquel Raynal
2020-10-12 13:24 ` Guenter Roeck
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