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sparc64: Don't use devspec to determine the OBP path

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Don't use devspec to determine the OBP path on SPARC hardware.  Within all
versions of Linux on SPARC, the devspec returns one of three values:
"none", "vnet-port", or "vdisk".  Unlike on PPC, none of these values
are useful in determining the OBP path.

Before this patch grub-ofpathname always returned the wrong value
for a virtual disk. For example:

% grub-ofpathname /dev/vdiskc2
vdisk/disk@2:b

After this patch it now returns the correct value:

% grub-ofpathname /dev/vdiskc2
/virtual-devices@100/channel-devices@200/disk@2:b

Orabug: 24459765

Signed-off-by: Eric Snowberg <eric.snowberg@oracle.com>
Reviewed-by: Daniel Kiper <daniel.kiper@oracle.com>
This commit is contained in:
Eric Snowberg 2017-05-18 17:10:22 -06:00 committed by Vincent Batts
parent 6e329bec23
commit da4e8334b2
1 changed files with 3 additions and 0 deletions
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3
grub-core/osdep/linux/ofpath.c
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@ -120,6 +120,8 @@ find_obppath (const char *sysfs_path_orig)
#endif
fd = open(path, O_RDONLY);
#ifndef __sparc__
if (fd < 0 || fstat (fd, &st) < 0)
{
if (fd >= 0)
@ -127,6 +129,7 @@ find_obppath (const char *sysfs_path_orig)
snprintf(path, path_size, "%s/devspec", sysfs_path);
fd = open(path, O_RDONLY);
}
#endif
if (fd < 0 || fstat (fd, &st) < 0)
{