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 [thread overview]
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>
next prev parent reply other threads:[~2019-05-31 12:46 UTC|newest]
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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