From: Mike Marciniszyn Date: Mon, 23 Jul 2012 16:38:15 +0000 (+0000) Subject: IB/qib: Fix size of cc_supported_table_entries X-Git-Tag: v3.6-rc1~27^2^4 X-Git-Url: https://asedeno.scripts.mit.edu/gitweb/?a=commitdiff_plain;h=5d7fe4efbf0878e0ef12c8f93e7a16c750494b7e;p=linux.git IB/qib: Fix size of cc_supported_table_entries Commit 36a8f01cd24b ("IB/qib: Add congestion control agent implementation") tries to store the value 1984 in a u8, which leads to truncation. Fix this by making the member big enough. This bug was detected by a smatch warning. Reported-by: Dan Carpenter Reviewed-by: Ramkrishna Vepa Signed-off-by: Mike Marciniszyn Signed-off-by: Roland Dreier --- diff --git a/drivers/infiniband/hw/qib/qib.h b/drivers/infiniband/hw/qib/qib.h index 6e19ec844d99..7b1b86690024 100644 --- a/drivers/infiniband/hw/qib/qib.h +++ b/drivers/infiniband/hw/qib/qib.h @@ -656,6 +656,11 @@ struct qib_pportdata { /* 16 congestion entries with each entry corresponding to a SL */ struct ib_cc_congestion_entry_shadow *congestion_entries; + /* Maximum number of congestion control entries that the agent expects + * the manager to send. + */ + u16 cc_supported_table_entries; + /* Total number of congestion control table entries */ u16 total_cct_entry; @@ -667,11 +672,6 @@ struct qib_pportdata { /* CA's max number of 64 entry units in the congestion control table */ u8 cc_max_table_entries; - - /* Maximum number of congestion control entries that the agent expects - * the manager to send. - */ - u8 cc_supported_table_entries; }; /* Observers. Not to be taken lightly, possibly not to ship. */