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-rw-r--r--sys/boot/forth/loader.conf.54
-rw-r--r--sys/dev/acpica/Osd/OsdTable.c12
-rw-r--r--sys/sys/kernel.h3
3 files changed, 12 insertions, 7 deletions
diff --git a/sys/boot/forth/loader.conf.5 b/sys/boot/forth/loader.conf.5
index 89a803f..414784e 100644
--- a/sys/boot/forth/loader.conf.5
+++ b/sys/boot/forth/loader.conf.5
@@ -132,6 +132,10 @@ special value
.Dq abort ,
which aborts the bootstrap process, use of this setting should be avoided.
.El
+.Pp
+.Em WARNING:
+developers should never use these suffixes for any kernel environment
+variables (tunables) or conflicts will result.
.Sh DEFAULT SETTINGS
Most of
.Nm Ns 's
diff --git a/sys/dev/acpica/Osd/OsdTable.c b/sys/dev/acpica/Osd/OsdTable.c
index 2f057d2..0b94ad3 100644
--- a/sys/dev/acpica/Osd/OsdTable.c
+++ b/sys/dev/acpica/Osd/OsdTable.c
@@ -38,8 +38,8 @@
#undef _COMPONENT
#define _COMPONENT ACPI_TABLES
-static char acpi_os_name[128];
-TUNABLE_STR("hw.acpi.os_name", acpi_os_name, sizeof(acpi_os_name));
+static char acpi_osname[128];
+TUNABLE_STR("hw.acpi.osname", acpi_osname, sizeof(acpi_osname));
ACPI_STATUS
AcpiOsPredefinedOverride (
@@ -50,11 +50,9 @@ AcpiOsPredefinedOverride (
return (AE_BAD_PARAMETER);
*NewVal = NULL;
- if (strncmp(InitVal->Name, "_OS_", 4) == 0 &&
- getenv_string("hw.acpi.os_name", acpi_os_name, sizeof(acpi_os_name))) {
-
- printf("ACPI: Overriding _OS definition with \"%s\"\n", acpi_os_name);
- *NewVal = acpi_os_name;
+ if (strncmp(InitVal->Name, "_OS_", 4) == 0 && strlen(acpi_osname) > 0) {
+ printf("ACPI: Overriding _OS definition with \"%s\"\n", acpi_osname);
+ *NewVal = acpi_osname;
}
return (AE_OK);
diff --git a/sys/sys/kernel.h b/sys/sys/kernel.h
index fe75bf2..d0f449d 100644
--- a/sys/sys/kernel.h
+++ b/sys/sys/kernel.h
@@ -265,6 +265,9 @@ void sysinit_add(struct sysinit **set, struct sysinit **set_end);
* Infrastructure for tunable 'constants'. Value may be specified at compile
* time or kernel load time. Rules relating tunables together can be placed
* in a SYSINIT function at SI_SUB_TUNABLES with SI_ORDER_LAST.
+ *
+ * WARNING: developers should never use the reserved suffixes specified in
+ * loader.conf(5) for any tunables or conflicts will result.
*/
extern void tunable_int_init(void *);
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