watchdog: hpwdt: SMBIOS check

Web:        https://git.kernel.org/torvalds/c/c42cbe41727a138905a28f8e0b00c147be77ee93
Commit:     c42cbe41727a138905a28f8e0b00c147be77ee93
Parent:     24f8d233074badd4c18e4dafd2fb97d65838afed
Refname:    refs/heads/master
Author:     Jerry Hoemann <[email protected]>
AuthorDate: Mon Oct 23 16:46:16 2017 -0600
Committer:  Wim Van Sebroeck <[email protected]>
CommitDate: Sun Dec 17 11:01:49 2017 +0100

    watchdog: hpwdt: SMBIOS check
    
    This corrects:
    commit cce78da76601 ("watchdog: hpwdt: Add check for UEFI bits")
    
    The test on HPE SMBIOS extension type 219 record "Misc Features"
    bits for UEFI support is incorrect.  The definition of the Misc Features
    bits in the HPE SMBIOS OEM Extensions specification (and related
    firmware) was changed to use a different pair of bits to
    represent UEFI supported.  Howerver, a corresponding change
    to Linux was missed.
    
    Current code/platform work because the iCRU test is working.
    But purpose of cce78da766 is to ensure correct functionality
    on future systems where iCRU isn't supported.
    
    Signed-off-by: Jerry Hoemann <[email protected]>
    Reviewed-by: Guenter Roeck <[email protected]>
    Signed-off-by: Guenter Roeck <[email protected]>
    Signed-off-by: Wim Van Sebroeck <[email protected]>
---
 drivers/watchdog/hpwdt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/watchdog/hpwdt.c b/drivers/watchdog/hpwdt.c
index 67fbe35ce7cf..9fd869fbd8a9 100644
--- a/drivers/watchdog/hpwdt.c
+++ b/drivers/watchdog/hpwdt.c
@@ -700,7 +700,7 @@ static void dmi_find_icru(const struct dmi_header *dm, void *dummy)
 		smbios_proliant_ptr = (struct smbios_proliant_info *) dm;
 		if (smbios_proliant_ptr->misc_features & 0x01)
 			is_icru = 1;
-		if (smbios_proliant_ptr->misc_features & 0x408)
+		if (smbios_proliant_ptr->misc_features & 0x1400)
 			is_uefi = 1;
 	}
 }
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