The page table entry is passed in the 'val' argument to note_page(), however this was previously an "unsigned long" which is fine on 64-bit platforms. But for 32 bit x86 it is not always big enough to contain a page table entry which may be 64 bits. Change the type to u64 to ensure that it is always big enough. [akpm@linux-foundation.org: fix riscv] Reported-by: Jan Beulich <jbeulich@suse.com> Signed-off-by: Steven Price <steven.price@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: Andy Lutomirski <luto@kernel.org> Cc: Borislav Petkov <bp@alien8.de> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: <stable@vger.kernel.org> Link: http://lkml.kernel.org/r/20200521152308.33096-3-steven.price@arm.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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| @@ -13,7 +13,7 @@ struct ptdump_range { · 12 unmodified lines | |||
| 13 | struct ptdump_state { | 13 | struct ptdump_state { |
| 14 | /* level is 0:PGD to 4:PTE, or -1 if unknown */ | 14 | /* level is 0:PGD to 4:PTE, or -1 if unknown */ |
| 15 | void (*note_page)(struct ptdump_state *st, unsigned long addr, | 15 | void (*note_page)(struct ptdump_state *st, unsigned long addr, |
| 16 | int level, unsigned long val); | 16 | int level, u64 val); |
| 17 | void (*effective_prot)(struct ptdump_state *st, int level, u64 val); | 17 | void (*effective_prot)(struct ptdump_state *st, int level, u64 val); |
| 18 | const struct ptdump_range *range; | 18 | const struct ptdump_range *range; |
| 19 | }; | 19 | }; |