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DateTue, 24 Nov 2009 15:29:40 -0800
FromAndrew Morton <>
SubjectRe: [PATCH 5/7] kfifo: add DEFINE_KFIFO and friends, add very tiny functions
On Fri, 20 Nov 2009 09:27:13 +0100
Stefani Seibold <stefani@seibold.net> wrote:

> Add DECLARE_KFIFO - macro to declare a kfifo and the associated buffer inside a struct
> Add INIT_KFIFO - Initialize a kfifo declared by DECLARED_KFIFO
> Add DEFINE_KFIFO - macro to define and initialize a kfifo as a global or local object
> Add kfifo_size() - returns the size of the fifo in bytes
> Add kfifo_is_empty() - returns true if the fifo is empty
> Add kfifo_is_full() - returns true if the fifo is full
> Add kfifo_avail() - returns the number of bytes available in the FIFO
> Do some code cleanup

Causes this:


drivers/scsi/libiscsi_tcp.c: In function 'iscsi_tcp_cleanup_task':
drivers/scsi/libiscsi_tcp.c:449: warning: ignoring return value of 'kfifo_in', declared with attribute warn_unused_result
drivers/scsi/libiscsi_tcp.c:456: warning: ignoring return value of 'kfifo_in', declared with attribute warn_unused_result
drivers/scsi/libiscsi_tcp.c: In function 'iscsi_tcp_r2t_rsp':
drivers/scsi/libiscsi_tcp.c:557: warning: ignoring return value of 'kfifo_in', declared with attribute warn_unused_result
drivers/scsi/libiscsi_tcp.c:573: warning: ignoring return value of 'kfifo_in', declared with attribute warn_unused_result
drivers/scsi/libiscsi_tcp.c:583: warning: ignoring return value of 'kfifo_in', declared with attribute warn_unused_result
drivers/scsi/libiscsi_tcp.c: In function 'iscsi_tcp_get_curr_r2t':
drivers/scsi/libiscsi_tcp.c:985: warning: ignoring return value of 'kfifo_in', declared with attribute warn_unused_result
drivers/scsi/libiscsi_tcp.c:993: warning: ignoring return value of 'kfifo_out', declared with attribute warn_unused_result


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