Commit 044cd80942e47b9de0915b627902adf05c52377f

Authored by Yinghai Lu
Committed by Jesse Barnes
1 parent 162dedd39d

x86/PCI: don't call e820_all_mapped with -1 in the mmconfig case

e820_all_mapped need end is (addr + size) instead of (addr + size - 1)

Cc: stable@kernel.org
Acked-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>

Showing 1 changed file with 3 additions and 3 deletions Side-by-side Diff

arch/x86/pci/mmconfig-shared.c
... ... @@ -375,7 +375,7 @@
375 375 if (!fixmem32)
376 376 return AE_OK;
377 377 if ((mcfg_res->start >= fixmem32->address) &&
378   - (mcfg_res->end < (fixmem32->address +
  378 + (mcfg_res->end <= (fixmem32->address +
379 379 fixmem32->address_length))) {
380 380 mcfg_res->flags = 1;
381 381 return AE_CTRL_TERMINATE;
... ... @@ -392,7 +392,7 @@
392 392 return AE_OK;
393 393  
394 394 if ((mcfg_res->start >= address.minimum) &&
395   - (mcfg_res->end < (address.minimum + address.address_length))) {
  395 + (mcfg_res->end <= (address.minimum + address.address_length))) {
396 396 mcfg_res->flags = 1;
397 397 return AE_CTRL_TERMINATE;
398 398 }
... ... @@ -439,7 +439,7 @@
439 439 u64 old_size = size;
440 440 int valid = 0;
441 441  
442   - while (!is_reserved(addr, addr + size - 1, E820_RESERVED)) {
  442 + while (!is_reserved(addr, addr + size, E820_RESERVED)) {
443 443 size >>= 1;
444 444 if (size < (16UL<<20))
445 445 break;