From d058fd31c7f44960b00566bda39c85377f461a7b Mon Sep 17 00:00:00 2001 From: Bart Van Assche Date: Tue, 20 Jul 2010 15:19:15 -0700 Subject: [PATCH] [SCSI] fcoe: make it possible to verify fcoe with sparse Analyzing fcoe with sparse currently fails. This is because struct fcoe_rcv_info contains two enum members that have been declared with __attribute__((packed)). Apparently gcc honors this attribute while sparse ignores it. The result is that sizeof(struct fcoe_rcv_info) == sizeof(struct sk_buff::cb) == 48 on a 64-bit system according to gcc, but not according to sparse. The patch below modifies the definition of struct fcoe_rcv_info such that gcc and sparse interpret this structure definition in the same way. The current sparse output is as follows: $ cd linux-2.6.34 $ make C=2 M=drivers/scsi/fcoe modules CHECK drivers/scsi/fcoe/fcoe.c include/scsi/fc_frame.h:81:9: error: invalid bitfield width, -1. CC [M] drivers/scsi/fcoe/fcoe.o CHECK drivers/scsi/fcoe/libfcoe.c include/scsi/fc_frame.h:81:9: error: invalid bitfield width, -1. drivers/scsi/fcoe/libfcoe.c:56:37: error: invalid initializer Signed-off-by: Bart Van Assche Cc: jeykholt@cisco.com Signed-off-by: Robert Love Signed-off-by: James Bottomley --- include/scsi/fc_frame.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/include/scsi/fc_frame.h b/include/scsi/fc_frame.h index 4d3e9c7b7c57..15427fab8a57 100644 --- a/include/scsi/fc_frame.h +++ b/include/scsi/fc_frame.h @@ -66,8 +66,8 @@ struct fcoe_rcv_info { struct fc_fcp_pkt *fr_fsp; /* for the corresponding fcp I/O */ u32 fr_crc; u16 fr_max_payload; /* max FC payload */ - enum fc_sof fr_sof; /* start of frame delimiter */ - enum fc_eof fr_eof; /* end of frame delimiter */ + u8 fr_sof; /* start of frame delimiter */ + u8 fr_eof; /* end of frame delimiter */ u8 fr_flags; /* flags - see below */ u8 granted_mac[ETH_ALEN]; /* FCoE MAC address */ }; -- 2.20.1