From d3f46f39b7092594b498abc12f0c73b0b9913bde Mon Sep 17 00:00:00 2001 From: James Bottomley Date: Tue, 15 Jan 2008 11:11:46 -0600 Subject: [SCSI] remove use_sg_chaining With the sg table code, every SCSI driver is now either chain capable or broken (or has sg_tablesize set so chaining is never activated), so there's no need to have a check in the host template. Also tidy up the code by moving the scatterlist size defines into the SCSI includes and permit the last entry of the scatterlist pools not to be a power of two. Signed-off-by: James Bottomley --- include/scsi/scsi_host.h | 13 ------------- 1 file changed, 13 deletions(-) (limited to 'include/scsi/scsi_host.h') diff --git a/include/scsi/scsi_host.h b/include/scsi/scsi_host.h index cb2bcab41df..5c58d594126 100644 --- a/include/scsi/scsi_host.h +++ b/include/scsi/scsi_host.h @@ -39,9 +39,6 @@ struct blk_queue_tags; #define DISABLE_CLUSTERING 0 #define ENABLE_CLUSTERING 1 -#define DISABLE_SG_CHAINING 0 -#define ENABLE_SG_CHAINING 1 - enum scsi_eh_timer_return { EH_NOT_HANDLED, EH_HANDLED, @@ -445,15 +442,6 @@ struct scsi_host_template { */ unsigned ordered_tag:1; - /* - * true if the low-level driver can support sg chaining. this - * will be removed eventually when all the drivers are - * converted to support sg chaining. - * - * Status: OBSOLETE - */ - unsigned use_sg_chaining:1; - /* * Countdown for host blocking with no commands outstanding */ @@ -598,7 +586,6 @@ struct Scsi_Host { unsigned unchecked_isa_dma:1; unsigned use_clustering:1; unsigned use_blk_tcq:1; - unsigned use_sg_chaining:1; /* * Host has requested that no further requests come through for the -- cgit v1.2.3