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From: Dan Murphy <dmurphy@ti.com>
To: Nikolaus Voss <nikolaus.voss@loewensteinmedical.de>,
	"Rafael J. Wysocki" <rjw@rjwysocki.net>,
	Len Brown <lenb@kernel.org>,
	Robert Moore <robert.moore@intel.com>,
	Erik Schmauss <erik.schmauss@intel.com>,
	Jacek Anaszewski <jacek.anaszewski@gmail.com>,
	Pavel Machek <pavel@ucw.cz>,
	Thierry Reding <thierry.reding@gmail.com>
Cc: <linux-acpi@vger.kernel.org>, <devel@acpica.org>,
	<linux-leds@vger.kernel.org>, <linux-pwm@vger.kernel.org>
Subject: Re: [PATCH 1/3] ACPI: Resolve objects on host-directed table loads
Date: Fri, 31 May 2019 07:46:18 -0500
Message-ID: <e5ed5715-2fc0-be77-0cb2-2cae57de4b98@ti.com> (raw)
In-Reply-To: <2944848d-d004-6750-b95d-825b1758ff22@ti.com>

Nikolaus

On 5/30/19 9:42 AM, Dan Murphy wrote:
> Nikolaus
>
> On 5/29/19 7:18 AM, Nikolaus Voss wrote:
>> If an ACPI SSDT overlay is loaded after built-in tables
>> have been loaded e.g. via configfs or efivar_ssdt_load()
>> it is necessary to rewalk the namespace to resolve
>> references. Without this, relative and absolute paths
>> like ^PCI0.SBUS or \_SB.PCI0.SBUS are not resolved
>> correctly.
>>
>> Make configfs load use the same method as efivar_ssdt_load().
>>
>> Signed-off-by: Nikolaus Voss <nikolaus.voss@loewensteinmedical.de>
>> ---
>>   drivers/acpi/acpi_configfs.c   |  6 +-----
>>   drivers/acpi/acpica/tbxfload.c | 11 +++++++++++
>>   2 files changed, 12 insertions(+), 5 deletions(-)
>>
>> diff --git a/drivers/acpi/acpi_configfs.c b/drivers/acpi/acpi_configfs.c
>> index f92033661239..663f0d88f912 100644
>> --- a/drivers/acpi/acpi_configfs.c
>> +++ b/drivers/acpi/acpi_configfs.c
>> @@ -56,11 +56,7 @@ static ssize_t acpi_table_aml_write(struct 
>> config_item *cfg,
>>       if (!table->header)
>>           return -ENOMEM;
>>   -    ACPI_INFO(("Host-directed Dynamic ACPI Table Load:"));
>> -    ret = acpi_tb_install_and_load_table(
>> -            ACPI_PTR_TO_PHYSADDR(table->header),
>> -            ACPI_TABLE_ORIGIN_EXTERNAL_VIRTUAL, FALSE,
>> -            &table->index);
>> +    ret = acpi_load_table(table->header);
>>       if (ret) {
>>           kfree(table->header);
>>           table->header = NULL;
>> diff --git a/drivers/acpi/acpica/tbxfload.c 
>> b/drivers/acpi/acpica/tbxfload.c
>> index 4f30f06a6f78..61f2d46e52ba 100644
>> --- a/drivers/acpi/acpica/tbxfload.c
>> +++ b/drivers/acpi/acpica/tbxfload.c
>> @@ -297,6 +297,17 @@ acpi_status acpi_load_table(struct 
>> acpi_table_header *table)
>>       status = 
>> acpi_tb_install_and_load_table(ACPI_PTR_TO_PHYSADDR(table),
>>                           ACPI_TABLE_ORIGIN_EXTERNAL_VIRTUAL,
>>                           FALSE, &table_index);
>> +
>> +    if (!ACPI_FAILURE(status)) {
> Checkpatch should complain about putting brackets around single 
> statement if's.

Would ACPI_SUCCESS make more sense here?

Dan

<snip>

  parent reply index

Thread overview: 57+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-05-29 12:18 [PATCH 0/3] PWM framework: add support referencing PWMs from ACPI Nikolaus Voss
2019-05-29 12:18 ` [PATCH 1/3] ACPI: Resolve objects on host-directed table loads Nikolaus Voss
2019-05-30 14:42   ` Dan Murphy
2019-05-31 12:23     ` Pavel Machek
2019-05-31 12:45       ` Dan Murphy
2019-05-31 12:46     ` Dan Murphy [this message]
2019-06-03  9:12       ` Nikolaus Voss
2019-08-14 18:50   ` Andy Shevchenko
2019-08-14 20:27     ` Schmauss, Erik
2019-08-16 11:57       ` Nikolaus Voss
2019-08-30 14:53         ` Shevchenko, Andriy
2019-09-04  7:20           ` Nikolaus Voss
2019-09-06 17:46             ` Shevchenko, Andriy
2019-09-12  8:05               ` Nikolaus Voss
2019-09-12  8:07               ` [PATCH] ACPICA: make acpi_load_table() return table index Nikolaus Voss
2019-09-12 14:19                 ` Moore, Robert
2019-09-12 19:36                   ` Ferry Toth
2019-09-25 18:13                     ` Schmauss, Erik
2019-09-26  8:09                       ` Shevchenko, Andriy
2019-09-13  7:44                   ` Nikolaus Voss
2019-09-13 14:20                     ` Moore, Robert
2019-09-13 15:12                       ` Shevchenko, Andriy
2019-09-13 16:48                         ` Ferry Toth
2019-09-13 16:48                           ` Ferry Toth
2019-09-13 17:40                           ` Moore, Robert
2019-09-13 19:56                             ` Rafael J. Wysocki
2019-09-16  9:46                             ` Nikolaus Voss
2019-09-18 14:13                               ` Moore, Robert
2019-09-18 14:31                                 ` Nikolaus Voss
2019-09-19 17:05                                   ` Moore, Robert
2019-09-23  9:05                                     ` Nikolaus Voss
2019-09-24 19:41                                       ` Moore, Robert
2019-09-25 10:18                                         ` Nikolaus Voss
2019-09-25 10:53                                           ` Shevchenko, Andriy
2019-09-19  8:13                 ` Rafael J. Wysocki
2019-09-23  9:08                   ` Nikolaus Voss
2019-09-23  9:47                   ` [PATCH] ACPICA: Introduce acpi_load_table_with_index() Nikolaus Voss
2019-09-24 12:07                     ` Shevchenko, Andriy
2019-09-24 12:08                       ` Shevchenko, Andriy
2019-09-25 10:20                         ` Nikolaus Voss
2019-09-24 15:11                     ` Andy Shevchenko
2019-09-25 10:22                       ` Nikolaus Voss
2019-09-26 16:09                 ` [PATCH] ACPICA: make acpi_load_table() return table index Schmauss, Erik
2019-09-26 16:35                   ` Shevchenko, Andriy
2019-09-26 16:51                     ` Schmauss, Erik
2019-09-26 17:47                       ` Shevchenko, Andriy
2019-09-26 18:44                       ` Nikolaus Voss
2019-09-26 19:26                         ` Rafael J. Wysocki
2019-09-26 19:41                           ` Schmauss, Erik
2019-09-26 18:43                   ` Nikolaus Voss
2019-05-29 12:18 ` [PATCH 2/3] PWM framework: add support referencing PWMs from ACPI Nikolaus Voss
2019-05-30 14:54   ` Dan Murphy
2019-05-31 12:24     ` Pavel Machek
2019-06-03  9:27     ` Nikolaus Voss
2019-05-29 12:18 ` [PATCH 3/3] leds-pwm.c: support ACPI via firmware-node framework Nikolaus Voss
2019-05-30 15:14   ` Dan Murphy
2019-06-03  9:44     ` Nikolaus Voss

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