Revision f555befd185dc097ede887eb7b308c2e1c1369d4 authored by Jan Stancek on 12 January 2021, 23:49:21 UTC, committed by Linus Torvalds on 13 January 2021, 02:12:54 UTC
After commit 236c32eb1096 ("mm: migrate: clean up migrate_prep{_local}")',
do_migrate_pages can return uninitialized variable 'err' (which is
propagated to user-space as error) when 'from' and 'to' nodesets are
identical. This can be reproduced with LTP migrate_pages01, which calls
migrate_pages() with same set for both old/new_nodes.
Add 'err' initialization back.
Link: https://lkml.kernel.org/r/456a021c7ef3636d7668cec9dcb4a446a4244812.1609855564.git.jstancek@redhat.com
Fixes: 236c32eb1096 ("mm: migrate: clean up migrate_prep{_local}")
Signed-off-by: Jan Stancek <jstancek@redhat.com>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Yang Shi <shy828301@gmail.com>
Cc: Zi Yan <ziy@nvidia.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Song Liu <songliubraving@fb.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
1 parent c22ee52
ocxl-config.h
// SPDX-License-Identifier: GPL-2.0+
// Copyright 2017 IBM Corp.
#ifndef _OCXL_CONFIG_H_
#define _OCXL_CONFIG_H_
/*
* This file lists the various constants used to read the
* configuration space of an opencapi adapter.
*
* It follows the specification for opencapi 3.0
*/
#define OCXL_EXT_CAP_ID_DVSEC 0x23
#define OCXL_DVSEC_VENDOR_OFFSET 0x4
#define OCXL_DVSEC_ID_OFFSET 0x8
#define OCXL_DVSEC_TL_ID 0xF000
#define OCXL_DVSEC_TL_BACKOFF_TIMERS 0x10
#define OCXL_DVSEC_TL_RECV_CAP 0x18
#define OCXL_DVSEC_TL_SEND_CAP 0x20
#define OCXL_DVSEC_TL_RECV_RATE 0x30
#define OCXL_DVSEC_TL_SEND_RATE 0x50
#define OCXL_DVSEC_FUNC_ID 0xF001
#define OCXL_DVSEC_FUNC_OFF_INDEX 0x08
#define OCXL_DVSEC_FUNC_OFF_ACTAG 0x0C
#define OCXL_DVSEC_AFU_INFO_ID 0xF003
#define OCXL_DVSEC_AFU_INFO_AFU_IDX 0x0A
#define OCXL_DVSEC_AFU_INFO_OFF 0x0C
#define OCXL_DVSEC_AFU_INFO_DATA 0x10
#define OCXL_DVSEC_AFU_CTRL_ID 0xF004
#define OCXL_DVSEC_AFU_CTRL_AFU_IDX 0x0A
#define OCXL_DVSEC_AFU_CTRL_TERM_PASID 0x0C
#define OCXL_DVSEC_AFU_CTRL_ENABLE 0x0F
#define OCXL_DVSEC_AFU_CTRL_PASID_SUP 0x10
#define OCXL_DVSEC_AFU_CTRL_PASID_EN 0x11
#define OCXL_DVSEC_AFU_CTRL_PASID_BASE 0x14
#define OCXL_DVSEC_AFU_CTRL_ACTAG_SUP 0x18
#define OCXL_DVSEC_AFU_CTRL_ACTAG_EN 0x1A
#define OCXL_DVSEC_AFU_CTRL_ACTAG_BASE 0x1C
#define OCXL_DVSEC_VENDOR_ID 0xF0F0
#define OCXL_DVSEC_VENDOR_CFG_VERS 0x0C
#define OCXL_DVSEC_VENDOR_TLX_VERS 0x10
#define OCXL_DVSEC_VENDOR_DLX_VERS 0x20
#define OCXL_DVSEC_VENDOR_RESET_RELOAD 0x38
#endif /* _OCXL_CONFIG_H_ */
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