Messages in this thread Patch in this message | | | From | Christoph Böhmwalder <> | Subject | [PATCH 2/8] drbd: fix DRBD_VOLUME_MAX 65535 -> 65534 | Date | Fri, 13 Jan 2023 13:35:32 +0100 |
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From: Robert Altnoeder <robert.altnoeder@linbit.com>
The protocol uses -1 as a reserved value for 'no specific volume', and since the protocol field is a 16 bit unsigned value, -1 is converted to 65535. Therefore, limit the range of valid volume numbers to [0, 65534].
Signed-off-by: Robert Altnoeder <robert.altnoeder@linbit.com> Signed-off-by: Christoph Böhmwalder <christoph.boehmwalder@linbit.com> Reviewed-by: Joel Colledge <joel.colledge@linbit.com> --- include/linux/drbd_limits.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/linux/drbd_limits.h b/include/linux/drbd_limits.h index d64271ccece4..058f7600f79c 100644 --- a/include/linux/drbd_limits.h +++ b/include/linux/drbd_limits.h @@ -21,7 +21,7 @@ #define DRBD_MINOR_COUNT_DEF 32 #define DRBD_MINOR_COUNT_SCALE '1' -#define DRBD_VOLUME_MAX 65535 +#define DRBD_VOLUME_MAX 65534 #define DRBD_DIALOG_REFRESH_MIN 0 #define DRBD_DIALOG_REFRESH_MAX 600 -- 2.38.1
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