diff options
| author | Ben Hutchings <ben@decadent.org.uk> | 2015-12-08 21:26:00 +0000 |
|---|---|---|
| committer | Ben Hutchings <ben@decadent.org.uk> | 2015-12-08 22:06:07 +0000 |
| commit | 8062189e927a2eb416606659cf00590a325cb738 (patch) | |
| tree | 450e7281f6bf80210576869cd3c9a9afed66fa81 /scripts/functions | |
| parent | c69313d01450748dea5966f101db4c9826820b16 (diff) | |
parse_numeric: Add support for 20-bit minor numbers in 'root' parameter
Linux supports 32-bit device numbers in the format 0xmmmMMMmm, where
each m is a hex digit of the minor number and each M is a hex digit of
the major number.
Currently parse_lilo only works if the top 3 digits are 0 (or absent).
Shift and mask the upper bits correctly.
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Diffstat (limited to 'scripts/functions')
| -rw-r--r-- | scripts/functions | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/scripts/functions b/scripts/functions index 2da6173..adcfefa 100644 --- a/scripts/functions +++ b/scripts/functions @@ -121,8 +121,8 @@ parse_numeric() { *) # [A-Fa-f0-9]* value=$(( 0x${1} )) - minor=$(( ${value} % 256 )) - major=$(( ${value} / 256 )) + minor=$(( (${value} & 0xff) | (${value} >> 12) & 0xfff00 )) + major=$(( (${value} >> 8) & 0xfff )) ;; esac |