diff options
| author | Timothy Pearson <tpearson@raptorengineering.com> | 2017-04-13 17:06:16 -0500 |
|---|---|---|
| committer | Timothy Pearson <tpearson@raptorengineering.com> | 2017-04-17 22:53:14 +0200 |
| commit | aeb6101a78d0b75fc02a919281f341db64938185 (patch) | |
| tree | 2a110527012689f698f42b446920c99cca6c6064 /src | |
| parent | 7b58319e9c320426f7dee202bf9201b6628bf958 (diff) | |
arch/x86/acpi: Allow "transparent" ACPI device names
Certain devices, such as the northbridge on AMD Opteron systems,
do not require a node in the ACPI device path. Allow such devices
to be passed over by the ACPI path generator if the device-specific
ACPI name function returns a zero-length (non-NULL) string.
Change-Id: Iffffc9a30b395b0bd6d60e411439a437e89f554e
Signed-off-by: Timothy Pearson <tpearson@raptorengineering.com>
Reviewed-on: https://review.coreboot.org/19281
Tested-by: build bot (Jenkins)
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Diffstat (limited to 'src')
| -rw-r--r-- | src/arch/x86/acpi_device.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/src/arch/x86/acpi_device.c b/src/arch/x86/acpi_device.c index f4f1c4c3b5..49439cc4a9 100644 --- a/src/arch/x86/acpi_device.c +++ b/src/arch/x86/acpi_device.c @@ -113,7 +113,9 @@ static size_t acpi_device_path_fill(struct device *dev, char *buf, /* Fill in the path from the root device */ next += snprintf(buf + next, buf_len - next, "%s%s", - dev->path.type == DEVICE_PATH_ROOT ? "" : ".", name); + (dev->path.type == DEVICE_PATH_ROOT + || (strlen(name) == 0)) ? + "" : ".", name); return next; } |