Jeff Moyer aeef8b5089 x86/pat: Pass valid address to sanitize_phys() ... The end address passed to memtype_reserve() is handed directly to sanitize_phys(). However, end is exclusive and sanitize_phys() expects an inclusive address. If end falls at the end of the physical address space, sanitize_phys() will return 0. This can result in drivers failing to load, and the following warning: WARNING: CPU: 26 PID: 749 at arch/x86/mm/pat.c:354 reserve_memtype+0x262/0x450 reserve_memtype failed: [mem 0x3ffffff00000-0xffffffffffffffff], req uncached-minus Call Trace: [<ffffffffa427b1f2>] reserve_memtype+0x262/0x450 [<ffffffffa42764aa>] ioremap_nocache+0x1a/0x20 [<ffffffffc04620a1>] mpt3sas_base_map_resources+0x151/0xa60 [mpt3sas] [<ffffffffc0465555>] mpt3sas_base_attach+0xf5/0xa50 [mpt3sas] ---[ end trace 6d6eea4438db89ef ]--- ioremap reserve_memtype failed -22 mpt3sas_cm0: unable to map adapter memory! or resource not found mpt3sas_cm0: failure at drivers/scsi/mpt3sas/mpt3sas_scsih.c:10597/_scsih_probe()! Fix this by passing the inclusive end address to sanitize_phys(). Fixes: 510ee090ab ("x86/mm/pat: Prepare {reserve, free}_memtype() for "decoy" addresses") Signed-off-by: Jeff Moyer <jmoyer@redhat.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Reviewed-by: David Hildenbrand <david@redhat.com> Reviewed-by: Dan Williams <dan.j.williams@intel.com> Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/x49o8a3pu5i.fsf@segfault.boston.devel.redhat.com		2021-09-02 21:53:18 +02:00
..
cpa-test.c	mm: don't include asm/pgtable.h if linux/mm.h is already included	2020-06-09 09:39:13 -07:00
Makefile
memtype.c	x86/pat: Pass valid address to sanitize_phys()	2021-09-02 21:53:18 +02:00
memtype.h
memtype_interval.c	mm: reorder includes after introduction of linux/pgtable.h	2020-06-09 09:39:13 -07:00
set_memory.c	mm: rename pud_page_vaddr to pud_pgtable and make it return pmd_t *	2021-07-08 11:48:22 -07:00