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3 Commits

Author SHA1 Message Date
Colin Ian King 97a103e6b5 ipmi_si: fix potential integer overflow on large shift 
Shifting unsigned char b by an int type can lead to sign-extension
overflow. For example, if b is 0xff and the shift is 24, then top
bit is sign-extended so the final value passed to writeq has all
the upper 32 bits set.  Fix this by casting b to a 64 bit unsigned
before the shift.

Detected by CoverityScan, CID#1465246 ("Unintended sign extension")

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Corey Minyard <cminyard@mvista.com>
 2018-09-18 16:15:33 -05:00
Corey Minyard 243ac21035 ipmi: Add or fix SPDX-License-Identifier in all files 
And get rid of the license text that is no longer necessary.

Signed-off-by: Corey Minyard <cminyard@mvista.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Alistair Popple <alistair@popple.id.au>
Cc: Jeremy Kerr <jk@ozlabs.org>
Cc: Joel Stanley <joel@jms.id.au>
Cc: Rocky Craig <rocky.craig@hp.com>
 2018-02-27 07:42:51 -06:00
Corey Minyard 58e2763553 ipmi_si: Move port and mem I/O handling to their own files 
Signed-off-by: Corey Minyard <cminyard@mvista.com>
 2017-09-28 12:26:00 -05:00