| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-Id: <1452607380-20861-4-git-send-email-kernel@kempniu.pl>
Date: Tue, 12 Jan 2016 15:02:49 +0100
From: Michał Kępień <kernel@...pniu.pl>
To: Darren Hart <dvhart@...radead.org>,
Matthew Garrett <mjg59@...f.ucam.org>,
Pali Rohár <pali.rohar@...il.com>,
Richard Purdie <rpurdie@...ys.net>,
Jacek Anaszewski <j.anaszewski@...sung.com>
Cc: Alex Hung <alex.hung@...onical.com>,
platform-driver-x86@...r.kernel.org, linux-leds@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH 03/14] dell-smbios: rename buffer to dell_smbios_buffer
As the SMBIOS buffer is exported from the module, it has to be renamed
to something less generic, so add a "dell_smbios_" prefix to the
variable name.
Signed-off-by: Michał Kępień <kernel@...pniu.pl>
---
drivers/platform/x86/dell-laptop.c | 139 ++++++++++++++++++------------------
drivers/platform/x86/dell-smbios.c | 20 +++---
drivers/platform/x86/dell-smbios.h | 2 +-
3 files changed, 81 insertions(+), 80 deletions(-)
diff --git a/drivers/platform/x86/dell-laptop.c b/drivers/platform/x86/dell-laptop.c
index 572bdca..aaef181 100644
--- a/drivers/platform/x86/dell-laptop.c
+++ b/drivers/platform/x86/dell-laptop.c
@@ -419,18 +419,18 @@ static int dell_rfkill_set(void *data, bool blocked)
get_buffer();
dell_send_request(17, 11);
- ret = buffer->output[0];
- status = buffer->output[1];
+ ret = dell_smbios_buffer->output[0];
+ status = dell_smbios_buffer->output[1];
if (ret != 0)
goto out;
clear_buffer();
- buffer->input[0] = 0x2;
+ dell_smbios_buffer->input[0] = 0x2;
dell_send_request(17, 11);
- ret = buffer->output[0];
- hwswitch = buffer->output[1];
+ ret = dell_smbios_buffer->output[0];
+ hwswitch = dell_smbios_buffer->output[1];
/* If the hardware switch controls this radio, and the hardware
switch is disabled, always disable the radio */
@@ -440,9 +440,9 @@ static int dell_rfkill_set(void *data, bool blocked)
clear_buffer();
- buffer->input[0] = (1 | (radio<<8) | (disable << 16));
+ dell_smbios_buffer->input[0] = (1 | (radio << 8) | (disable << 16));
dell_send_request(17, 11);
- ret = buffer->output[0];
+ ret = dell_smbios_buffer->output[0];
out:
release_buffer();
@@ -457,7 +457,8 @@ static void dell_rfkill_update_sw_state(struct rfkill *rfkill, int radio,
/* Has hw-switch, sync sw_state to BIOS */
int block = rfkill_blocked(rfkill);
clear_buffer();
- buffer->input[0] = (1 | (radio << 8) | (block << 16));
+ dell_smbios_buffer->input[0] = (1 | (radio << 8)
+ | (block << 16));
dell_send_request(17, 11);
} else {
/* No hw-switch, sync BIOS state to sw_state */
@@ -482,8 +483,8 @@ static void dell_rfkill_query(struct rfkill *rfkill, void *data)
get_buffer();
dell_send_request(17, 11);
- ret = buffer->output[0];
- status = buffer->output[1];
+ ret = dell_smbios_buffer->output[0];
+ status = dell_smbios_buffer->output[1];
if (ret != 0 || !(status & BIT(0))) {
release_buffer();
@@ -492,10 +493,10 @@ static void dell_rfkill_query(struct rfkill *rfkill, void *data)
clear_buffer();
- buffer->input[0] = 0x2;
+ dell_smbios_buffer->input[0] = 0x2;
dell_send_request(17, 11);
- ret = buffer->output[0];
- hwswitch = buffer->output[1];
+ ret = dell_smbios_buffer->output[0];
+ hwswitch = dell_smbios_buffer->output[1];
release_buffer();
@@ -522,15 +523,15 @@ static int dell_debugfs_show(struct seq_file *s, void *data)
get_buffer();
dell_send_request(17, 11);
- ret = buffer->output[0];
- status = buffer->output[1];
+ ret = dell_smbios_buffer->output[0];
+ status = dell_smbios_buffer->output[1];
clear_buffer();
- buffer->input[0] = 0x2;
+ dell_smbios_buffer->input[0] = 0x2;
dell_send_request(17, 11);
- hwswitch_ret = buffer->output[0];
- hwswitch_state = buffer->output[1];
+ hwswitch_ret = dell_smbios_buffer->output[0];
+ hwswitch_state = dell_smbios_buffer->output[1];
release_buffer();
@@ -620,20 +621,20 @@ static void dell_update_rfkill(struct work_struct *ignored)
get_buffer();
dell_send_request(17, 11);
- ret = buffer->output[0];
- status = buffer->output[1];
+ ret = dell_smbios_buffer->output[0];
+ status = dell_smbios_buffer->output[1];
if (ret != 0)
goto out;
clear_buffer();
- buffer->input[0] = 0x2;
+ dell_smbios_buffer->input[0] = 0x2;
dell_send_request(17, 11);
- ret = buffer->output[0];
+ ret = dell_smbios_buffer->output[0];
if (ret == 0 && (status & BIT(0)))
- hwswitch = buffer->output[1];
+ hwswitch = dell_smbios_buffer->output[1];
if (wifi_rfkill) {
dell_rfkill_update_hw_state(wifi_rfkill, 1, status, hwswitch);
@@ -711,8 +712,8 @@ static int __init dell_setup_rfkill(void)
get_buffer();
dell_send_request(17, 11);
- ret = buffer->output[0];
- status = buffer->output[1];
+ ret = dell_smbios_buffer->output[0];
+ status = dell_smbios_buffer->output[1];
release_buffer();
/* dell wireless info smbios call is not supported */
@@ -874,15 +875,15 @@ static int dell_send_intensity(struct backlight_device *bd)
return -ENODEV;
get_buffer();
- buffer->input[0] = token;
- buffer->input[1] = bd->props.brightness;
+ dell_smbios_buffer->input[0] = token;
+ dell_smbios_buffer->input[1] = bd->props.brightness;
if (power_supply_is_system_supplied() > 0)
dell_send_request(1, 2);
else
dell_send_request(1, 1);
- ret = dell_smi_error(buffer->output[0]);
+ ret = dell_smi_error(dell_smbios_buffer->output[0]);
release_buffer();
return ret;
@@ -898,17 +899,17 @@ static int dell_get_intensity(struct backlight_device *bd)
return -ENODEV;
get_buffer();
- buffer->input[0] = token;
+ dell_smbios_buffer->input[0] = token;
if (power_supply_is_system_supplied() > 0)
dell_send_request(0, 2);
else
dell_send_request(0, 1);
- if (buffer->output[0])
- ret = dell_smi_error(buffer->output[0]);
+ if (dell_smbios_buffer->output[0])
+ ret = dell_smi_error(dell_smbios_buffer->output[0]);
else
- ret = buffer->output[1];
+ ret = dell_smbios_buffer->output[1];
release_buffer();
return ret;
@@ -1159,29 +1160,29 @@ static int kbd_get_info(struct kbd_info *info)
get_buffer();
- buffer->input[0] = 0x0;
+ dell_smbios_buffer->input[0] = 0x0;
dell_send_request(4, 11);
- ret = buffer->output[0];
+ ret = dell_smbios_buffer->output[0];
if (ret) {
ret = dell_smi_error(ret);
goto out;
}
- info->modes = buffer->output[1] & 0xFFFF;
- info->type = (buffer->output[1] >> 24) & 0xFF;
- info->triggers = buffer->output[2] & 0xFF;
- units = (buffer->output[2] >> 8) & 0xFF;
- info->levels = (buffer->output[2] >> 16) & 0xFF;
+ info->modes = dell_smbios_buffer->output[1] & 0xFFFF;
+ info->type = (dell_smbios_buffer->output[1] >> 24) & 0xFF;
+ info->triggers = dell_smbios_buffer->output[2] & 0xFF;
+ units = (dell_smbios_buffer->output[2] >> 8) & 0xFF;
+ info->levels = (dell_smbios_buffer->output[2] >> 16) & 0xFF;
if (units & BIT(0))
- info->seconds = (buffer->output[3] >> 0) & 0xFF;
+ info->seconds = (dell_smbios_buffer->output[3] >> 0) & 0xFF;
if (units & BIT(1))
- info->minutes = (buffer->output[3] >> 8) & 0xFF;
+ info->minutes = (dell_smbios_buffer->output[3] >> 8) & 0xFF;
if (units & BIT(2))
- info->hours = (buffer->output[3] >> 16) & 0xFF;
+ info->hours = (dell_smbios_buffer->output[3] >> 16) & 0xFF;
if (units & BIT(3))
- info->days = (buffer->output[3] >> 24) & 0xFF;
+ info->days = (dell_smbios_buffer->output[3] >> 24) & 0xFF;
out:
release_buffer();
@@ -1247,25 +1248,25 @@ static int kbd_get_state(struct kbd_state *state)
get_buffer();
- buffer->input[0] = 0x1;
+ dell_smbios_buffer->input[0] = 0x1;
dell_send_request(4, 11);
- ret = buffer->output[0];
+ ret = dell_smbios_buffer->output[0];
if (ret) {
ret = dell_smi_error(ret);
goto out;
}
- state->mode_bit = ffs(buffer->output[1] & 0xFFFF);
+ state->mode_bit = ffs(dell_smbios_buffer->output[1] & 0xFFFF);
if (state->mode_bit != 0)
state->mode_bit--;
- state->triggers = (buffer->output[1] >> 16) & 0xFF;
- state->timeout_value = (buffer->output[1] >> 24) & 0x3F;
- state->timeout_unit = (buffer->output[1] >> 30) & 0x3;
- state->als_setting = buffer->output[2] & 0xFF;
- state->als_value = (buffer->output[2] >> 8) & 0xFF;
- state->level = (buffer->output[2] >> 16) & 0xFF;
+ state->triggers = (dell_smbios_buffer->output[1] >> 16) & 0xFF;
+ state->timeout_value = (dell_smbios_buffer->output[1] >> 24) & 0x3F;
+ state->timeout_unit = (dell_smbios_buffer->output[1] >> 30) & 0x3;
+ state->als_setting = dell_smbios_buffer->output[2] & 0xFF;
+ state->als_value = (dell_smbios_buffer->output[2] >> 8) & 0xFF;
+ state->level = (dell_smbios_buffer->output[2] >> 16) & 0xFF;
out:
release_buffer();
@@ -1277,15 +1278,15 @@ static int kbd_set_state(struct kbd_state *state)
int ret;
get_buffer();
- buffer->input[0] = 0x2;
- buffer->input[1] = BIT(state->mode_bit) & 0xFFFF;
- buffer->input[1] |= (state->triggers & 0xFF) << 16;
- buffer->input[1] |= (state->timeout_value & 0x3F) << 24;
- buffer->input[1] |= (state->timeout_unit & 0x3) << 30;
- buffer->input[2] = state->als_setting & 0xFF;
- buffer->input[2] |= (state->level & 0xFF) << 16;
+ dell_smbios_buffer->input[0] = 0x2;
+ dell_smbios_buffer->input[1] = BIT(state->mode_bit) & 0xFFFF;
+ dell_smbios_buffer->input[1] |= (state->triggers & 0xFF) << 16;
+ dell_smbios_buffer->input[1] |= (state->timeout_value & 0x3F) << 24;
+ dell_smbios_buffer->input[1] |= (state->timeout_unit & 0x3) << 30;
+ dell_smbios_buffer->input[2] = state->als_setting & 0xFF;
+ dell_smbios_buffer->input[2] |= (state->level & 0xFF) << 16;
dell_send_request(4, 11);
- ret = buffer->output[0];
+ ret = dell_smbios_buffer->output[0];
release_buffer();
return dell_smi_error(ret);
@@ -1324,10 +1325,10 @@ static int kbd_set_token_bit(u8 bit)
return -EINVAL;
get_buffer();
- buffer->input[0] = da_tokens[id].location;
- buffer->input[1] = da_tokens[id].value;
+ dell_smbios_buffer->input[0] = da_tokens[id].location;
+ dell_smbios_buffer->input[1] = da_tokens[id].value;
dell_send_request(1, 0);
- ret = buffer->output[0];
+ ret = dell_smbios_buffer->output[0];
release_buffer();
return dell_smi_error(ret);
@@ -1347,10 +1348,10 @@ static int kbd_get_token_bit(u8 bit)
return -EINVAL;
get_buffer();
- buffer->input[0] = da_tokens[id].location;
+ dell_smbios_buffer->input[0] = da_tokens[id].location;
dell_send_request(0, 0);
- ret = buffer->output[0];
- val = buffer->output[1];
+ ret = dell_smbios_buffer->output[0];
+ val = dell_smbios_buffer->output[1];
release_buffer();
if (ret)
@@ -2018,10 +2019,10 @@ static int __init dell_init(void)
token = find_token_location(BRIGHTNESS_TOKEN);
if (token != -1) {
get_buffer();
- buffer->input[0] = token;
+ dell_smbios_buffer->input[0] = token;
dell_send_request(0, 2);
- if (buffer->output[0] == 0)
- max_intensity = buffer->output[3];
+ if (dell_smbios_buffer->output[0] == 0)
+ max_intensity = dell_smbios_buffer->output[3];
release_buffer();
}
diff --git a/drivers/platform/x86/dell-smbios.c b/drivers/platform/x86/dell-smbios.c
index 758680f..a3898f9 100644
--- a/drivers/platform/x86/dell-smbios.c
+++ b/drivers/platform/x86/dell-smbios.c
@@ -31,8 +31,8 @@ struct calling_interface_structure {
} __packed;
static DEFINE_MUTEX(buffer_mutex);
-struct calling_interface_buffer *buffer;
-EXPORT_SYMBOL_GPL(buffer);
+struct calling_interface_buffer *dell_smbios_buffer;
+EXPORT_SYMBOL_GPL(dell_smbios_buffer);
static int da_command_address;
static int da_command_code;
@@ -42,7 +42,7 @@ EXPORT_SYMBOL_GPL(da_tokens);
void clear_buffer(void)
{
- memset(buffer, 0, sizeof(struct calling_interface_buffer));
+ memset(dell_smbios_buffer, 0, sizeof(struct calling_interface_buffer));
}
EXPORT_SYMBOL_GPL(clear_buffer);
@@ -91,15 +91,15 @@ struct calling_interface_buffer *dell_send_request(int class, int select)
command.magic = SMI_CMD_MAGIC;
command.command_address = da_command_address;
command.command_code = da_command_code;
- command.ebx = virt_to_phys(buffer);
+ command.ebx = virt_to_phys(dell_smbios_buffer);
command.ecx = 0x42534931;
- buffer->class = class;
- buffer->select = select;
+ dell_smbios_buffer->class = class;
+ dell_smbios_buffer->select = select;
dcdbas_smi_request(&command);
- return buffer;
+ return dell_smbios_buffer;
}
EXPORT_SYMBOL_GPL(dell_send_request);
@@ -162,8 +162,8 @@ static int __init dell_smbios_init(void)
* Allocate buffer below 4GB for SMI data--only 32-bit physical addr
* is passed to SMI handler.
*/
- buffer = (void *)__get_free_page(GFP_KERNEL | GFP_DMA32);
- if (!buffer) {
+ dell_smbios_buffer = (void *)__get_free_page(GFP_KERNEL | GFP_DMA32);
+ if (!dell_smbios_buffer) {
ret = -ENOMEM;
goto fail_buffer;
}
@@ -178,7 +178,7 @@ fail_buffer:
static void __exit dell_smbios_exit(void)
{
kfree(da_tokens);
- free_page((unsigned long)buffer);
+ free_page((unsigned long)dell_smbios_buffer);
}
subsys_initcall(dell_smbios_init);
diff --git a/drivers/platform/x86/dell-smbios.h b/drivers/platform/x86/dell-smbios.h
index 0f58ce8..89c787c 100644
--- a/drivers/platform/x86/dell-smbios.h
+++ b/drivers/platform/x86/dell-smbios.h
@@ -35,7 +35,7 @@ struct calling_interface_token {
};
};
-extern struct calling_interface_buffer *buffer;
+extern struct calling_interface_buffer *dell_smbios_buffer;
extern struct calling_interface_token *da_tokens;
void clear_buffer(void);
--
1.7.10.4
Powered by blists - more mailing lists