Commit 6072609d9bb91ff54aee3ef29304bd5b4fc88aae

Authored by James Bottomley
1 parent 4e5fae7adb

[SCSI] 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.

Cc: Jeff Mahoney <jeffm@suse.de>
Cc: Dave Jones <davej@redhat.com>
Cc: maximilian attems <max@stro.at>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

Showing 3 changed files with 0 additions and 56 deletions Side-by-side Diff

drivers/scsi/Kconfig
... ... @@ -263,23 +263,6 @@
263 263 You can override this choice by specifying "scsi_mod.scan=sync"
264 264 or async on the kernel's command line.
265 265  
266   -config SCSI_WAIT_SCAN
267   - tristate # No prompt here, this is an invisible symbol.
268   - default m
269   - depends on SCSI
270   - depends on MODULES
271   -# scsi_wait_scan is a loadable module which waits until all the async scans are
272   -# complete. The idea is to use it in initrd/ initramfs scripts. You modprobe
273   -# it after all the modprobes of the root SCSI drivers and it will wait until
274   -# they have all finished scanning their buses before allowing the boot to
275   -# proceed. (This method is not applicable if targets boot independently in
276   -# parallel with the initiator, or with transports with non-deterministic target
277   -# discovery schemes, or if a transport driver does not support scsi_wait_scan.)
278   -#
279   -# This symbol is not exposed as a prompt because little is to be gained by
280   -# disabling it, whereas people who accidentally switch it off may wonder why
281   -# their mkinitrd gets into trouble.
282   -
283 266 menu "SCSI Transports"
284 267 depends on SCSI
285 268  
drivers/scsi/Makefile
... ... @@ -159,8 +159,6 @@
159 159 # This goes last, so that "real" scsi devices probe earlier
160 160 obj-$(CONFIG_SCSI_DEBUG) += scsi_debug.o
161 161  
162   -obj-$(CONFIG_SCSI_WAIT_SCAN) += scsi_wait_scan.o
163   -
164 162 scsi_mod-y += scsi.o hosts.o scsi_ioctl.o constants.o \
165 163 scsicam.o scsi_error.o scsi_lib.o
166 164 scsi_mod-$(CONFIG_SCSI_DMA) += scsi_lib_dma.o
drivers/scsi/scsi_wait_scan.c
1   -/*
2   - * scsi_wait_scan.c
3   - *
4   - * Copyright (C) 2006 James Bottomley <James.Bottomley@SteelEye.com>
5   - *
6   - * This is a simple module to wait until all the async scans are
7   - * complete. The idea is to use it in initrd/initramfs scripts. You
8   - * modprobe it after all the modprobes of the root SCSI drivers and it
9   - * will wait until they have all finished scanning their busses before
10   - * allowing the boot to proceed
11   - */
12   -
13   -#include <linux/module.h>
14   -#include <linux/device.h>
15   -#include "scsi_priv.h"
16   -
17   -static int __init wait_scan_init(void)
18   -{
19   - /*
20   - * First we need to wait for device probing to finish;
21   - * the drivers we just loaded might just still be probing
22   - * and might not yet have reached the scsi async scanning
23   - */
24   - wait_for_device_probe();
25   - return 0;
26   -}
27   -
28   -static void __exit wait_scan_exit(void)
29   -{
30   -}
31   -
32   -MODULE_DESCRIPTION("SCSI wait for scans");
33   -MODULE_AUTHOR("James Bottomley");
34   -MODULE_LICENSE("GPL");
35   -
36   -late_initcall(wait_scan_init);
37   -module_exit(wait_scan_exit);