diff options
author | Peter Oberparleiter <oberpar@linux.ibm.com> | 2021-06-09 16:18:58 +0200 |
---|---|---|
committer | Vasily Gorbik <gor@linux.ibm.com> | 2021-06-18 16:41:20 +0200 |
commit | 28ac9b195d662dd8c5e4cc5fefb80bd3121aaee0 (patch) | |
tree | 92120cf4f61eb4b85a4f86e65c9b02a471390f2f /drivers/s390 | |
parent | e2f4d7b55b9900a15ed1911b0aead485395b765d (diff) | |
download | linux-28ac9b195d662dd8c5e4cc5fefb80bd3121aaee0.tar.gz linux-28ac9b195d662dd8c5e4cc5fefb80bd3121aaee0.tar.bz2 linux-28ac9b195d662dd8c5e4cc5fefb80bd3121aaee0.zip |
s390/xpram: Remove power management support
Power management support was removed for s390 with
commit 394216275c7d ("s390: remove broken hibernate / power management
support").
Remove leftover xpram-related power management code.
Acked-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Peter Oberparleiter <oberpar@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'drivers/s390')
-rw-r--r-- | drivers/s390/block/xpram.c | 63 |
1 files changed, 3 insertions, 60 deletions
diff --git a/drivers/s390/block/xpram.c b/drivers/s390/block/xpram.c index d1ed39162943..9f19d47fa118 100644 --- a/drivers/s390/block/xpram.c +++ b/drivers/s390/block/xpram.c @@ -39,8 +39,6 @@ #include <linux/hdreg.h> /* HDIO_GETGEO */ #include <linux/device.h> #include <linux/bio.h> -#include <linux/suspend.h> -#include <linux/platform_device.h> #include <linux/gfp.h> #include <linux/uaccess.h> @@ -141,7 +139,7 @@ static long xpram_page_out (unsigned long page_addr, unsigned int xpage_index) /* * Check if xpram is available. */ -static int xpram_present(void) +static int __init xpram_present(void) { unsigned long mem_page; int rc; @@ -157,7 +155,7 @@ static int xpram_present(void) /* * Return index of the last available xpram page. */ -static unsigned long xpram_highest_page_index(void) +static unsigned long __init xpram_highest_page_index(void) { unsigned int page_index, add_bit; unsigned long mem_page; @@ -391,42 +389,6 @@ out: } /* - * Resume failed: Print error message and call panic. - */ -static void xpram_resume_error(const char *message) -{ - pr_err("Resuming the system failed: %s\n", message); - panic("xpram resume error\n"); -} - -/* - * Check if xpram setup changed between suspend and resume. - */ -static int xpram_restore(struct device *dev) -{ - if (!xpram_pages) - return 0; - if (xpram_present() != 0) - xpram_resume_error("xpram disappeared"); - if (xpram_pages != xpram_highest_page_index() + 1) - xpram_resume_error("Size of xpram changed"); - return 0; -} - -static const struct dev_pm_ops xpram_pm_ops = { - .restore = xpram_restore, -}; - -static struct platform_driver xpram_pdrv = { - .driver = { - .name = XPRAM_NAME, - .pm = &xpram_pm_ops, - }, -}; - -static struct platform_device *xpram_pdev; - -/* * Finally, the init/exit functions. */ static void __exit xpram_exit(void) @@ -438,8 +400,6 @@ static void __exit xpram_exit(void) put_disk(xpram_disks[i]); } unregister_blkdev(XPRAM_MAJOR, XPRAM_NAME); - platform_device_unregister(xpram_pdev); - platform_driver_unregister(&xpram_pdrv); } static int __init xpram_init(void) @@ -457,24 +417,7 @@ static int __init xpram_init(void) rc = xpram_setup_sizes(xpram_pages); if (rc) return rc; - rc = platform_driver_register(&xpram_pdrv); - if (rc) - return rc; - xpram_pdev = platform_device_register_simple(XPRAM_NAME, -1, NULL, 0); - if (IS_ERR(xpram_pdev)) { - rc = PTR_ERR(xpram_pdev); - goto fail_platform_driver_unregister; - } - rc = xpram_setup_blkdev(); - if (rc) - goto fail_platform_device_unregister; - return 0; - -fail_platform_device_unregister: - platform_device_unregister(xpram_pdev); -fail_platform_driver_unregister: - platform_driver_unregister(&xpram_pdrv); - return rc; + return xpram_setup_blkdev(); } module_init(xpram_init); |