Remove scsi_wait_scan module
scsi_wait_scan was introduced with asynchronous host scanning as a hack
for distributions that weren't using proper udev based wait for root to
appear in their initramfs scripts. In 2.6.30 Commit
c751085943362143f84346d274e0011419c84202
Author: Rafael J. Wysocki <rjw@sisk.pl>
Date: Sun Apr 12 20:06:56 2009 +0200
PM/Hibernate: Wait for SCSI devices scan to complete during resume
Actually broke scsi_wait_scan because it renders
scsi_complete_async_scans() a nop for modular SCSI if you include
scsi_scans.h (which this module does).
The lack of bug reports is sufficient proof that this module is no
longer used.
James
---
diff --git a/drivers/scsi/Kconfig b/drivers/scsi/Kconfig
index bea04e5..ac6ea28 100644
--- a/drivers/scsi/Kconfig
+++ b/drivers/scsi/Kconfig
@@ -263,23 +263,6 @@ config SCSI_SCAN_ASYNC
You can override this choice by specifying "scsi_mod.scan=sync"
or async on the kernel's command line.
-config SCSI_WAIT_SCAN
- tristate # No prompt here, this is an invisible symbol.
- default m
- depends on SCSI
- depends on MODULES
-# scsi_wait_scan is a loadable module which waits until all the async scans are
-# complete. The idea is to use it in initrd/ initramfs scripts. You modprobe
-# it after all the modprobes of the root SCSI drivers and it will wait until
-# they have all finished scanning their buses before allowing the boot to
-# proceed. (This method is not applicable if targets boot independently in
-# parallel with the initiator, or with transports with non-deterministic target
-# discovery schemes, or if a transport driver does not support scsi_wait_scan.)
-#
-# This symbol is not exposed as a prompt because little is to be gained by
-# disabling it, whereas people who accidentally switch it off may wonder why
-# their mkinitrd gets into trouble.
-
menu "SCSI Transports"
depends on SCSI
diff --git a/drivers/scsi/Makefile b/drivers/scsi/Makefile
index 8deedea..f188509 100644
--- a/drivers/scsi/Makefile
+++ b/drivers/scsi/Makefile
@@ -161,8 +161,6 @@ obj-$(CONFIG_SCSI_OSD_INITIATOR) += osd/
# This goes last, so that "real" scsi devices probe earlier
obj-$(CONFIG_SCSI_DEBUG) += scsi_debug.o
-obj-$(CONFIG_SCSI_WAIT_SCAN) += scsi_wait_scan.o
-
scsi_mod-y += scsi.o hosts.o scsi_ioctl.o constants.o \
scsicam.o scsi_error.o scsi_lib.o
scsi_mod-$(CONFIG_SCSI_DMA) += scsi_lib_dma.o
diff --git a/drivers/scsi/scsi_wait_scan.c b/drivers/scsi/scsi_wait_scan.c
deleted file mode 100644
index 74708fc..0000000
--- a/drivers/scsi/scsi_wait_scan.c
+++ /dev/null
@@ -1,42 +0,0 @@
-/*
- * scsi_wait_scan.c
- *
- * Copyright (C) 2006 James Bottomley <James.Bottomley@SteelEye.com>
- *
- * This is a simple module to wait until all the async scans are
- * complete. The idea is to use it in initrd/initramfs scripts. You
- * modprobe it after all the modprobes of the root SCSI drivers and it
- * will wait until they have all finished scanning their busses before
- * allowing the boot to proceed
- */
-
-#include <linux/module.h>
-#include <linux/device.h>
-#include <scsi/scsi_scan.h>
-
-static int __init wait_scan_init(void)
-{
- /*
- * First we need to wait for device probing to finish;
- * the drivers we just loaded might just still be probing
- * and might not yet have reached the scsi async scanning
- */
- wait_for_device_probe();
- /*
- * and then we wait for the actual asynchronous scsi scan
- * to finish.
- */
- scsi_complete_async_scans();
- return 0;
-}
-
-static void __exit wait_scan_exit(void)
-{
-}
-
-MODULE_DESCRIPTION("SCSI wait for scans");
-MODULE_AUTHOR("James Bottomley");
-MODULE_LICENSE("GPL");
-
-late_initcall(wait_scan_init);
-module_exit(wait_scan_exit);
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