https://github.com/torvalds/linux
Revision 2d5c57d7fbfaa642fb7f0673df24f32b83d9066c authored by Jack Morgenstein on 25 November 2014, 09:54:31 UTC, committed by David S. Miller on 26 November 2014, 17:04:49 UTC
Some VF drivers use the upper byte of "param1" (the qp count field) in mlx4_qp_reserve_range() to pass flags which are used to optimize the range allocation. Under the current code, if any of these flags are set, the 32-bit count field yields a count greater than 2^24, which is out of range, and this VF fails. As these flags represent a "best-effort" allocation hint anyway, they may safely be ignored. Therefore, the PF driver may simply mask out the bits. Fixes: c82e9aa0a8 "mlx4_core: resource tracking for HCA resources used by guests" Signed-off-by: Jack Morgenstein <jackm@dev.mellanox.co.il> Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by: David S. Miller <davem@davemloft.net>
1 parent fbe4d0d
Tip revision: 2d5c57d7fbfaa642fb7f0673df24f32b83d9066c authored by Jack Morgenstein on 25 November 2014, 09:54:31 UTC
net/mlx4_core: Limit count field to 24 bits in qp_alloc_res
net/mlx4_core: Limit count field to 24 bits in qp_alloc_res
Tip revision: 2d5c57d
File | Mode | Size |
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Kconfig | -rw-r--r-- | 20.9 KB |
Kconfig.debug | -rw-r--r-- | 1015 bytes |
Makefile | -rw-r--r-- | 2.3 KB |
backing-dev.c | -rw-r--r-- | 16.9 KB |
balloon_compaction.c | -rw-r--r-- | 6.8 KB |
bootmem.c | -rw-r--r-- | 20.8 KB |
cleancache.c | -rw-r--r-- | 12.7 KB |
cma.c | -rw-r--r-- | 10.9 KB |
compaction.c | -rw-r--r-- | 42.0 KB |
debug-pagealloc.c | -rw-r--r-- | 2.1 KB |
debug.c | -rw-r--r-- | 6.4 KB |
dmapool.c | -rw-r--r-- | 13.7 KB |
early_ioremap.c | -rw-r--r-- | 5.4 KB |
fadvise.c | -rw-r--r-- | 3.6 KB |
failslab.c | -rw-r--r-- | 1.3 KB |
filemap.c | -rw-r--r-- | 70.7 KB |
filemap_xip.c | -rw-r--r-- | 11.3 KB |
fremap.c | -rw-r--r-- | 7.3 KB |
frontswap.c | -rw-r--r-- | 13.4 KB |
gup.c | -rw-r--r-- | 29.5 KB |
highmem.c | -rw-r--r-- | 11.8 KB |
huge_memory.c | -rw-r--r-- | 78.2 KB |
hugetlb.c | -rw-r--r-- | 98.1 KB |
hugetlb_cgroup.c | -rw-r--r-- | 10.3 KB |
hwpoison-inject.c | -rw-r--r-- | 3.3 KB |
init-mm.c | -rw-r--r-- | 619 bytes |
internal.h | -rw-r--r-- | 12.8 KB |
interval_tree.c | -rw-r--r-- | 3.2 KB |
iov_iter.c | -rw-r--r-- | 21.0 KB |
kmemcheck.c | -rw-r--r-- | 2.9 KB |
kmemleak-test.c | -rw-r--r-- | 3.2 KB |
kmemleak.c | -rw-r--r-- | 53.2 KB |
ksm.c | -rw-r--r-- | 63.3 KB |
list_lru.c | -rw-r--r-- | 3.4 KB |
maccess.c | -rw-r--r-- | 1.6 KB |
madvise.c | -rw-r--r-- | 14.1 KB |
memblock.c | -rw-r--r-- | 44.7 KB |
memcontrol.c | -rw-r--r-- | 173.8 KB |
memory-failure.c | -rw-r--r-- | 47.8 KB |
memory.c | -rw-r--r-- | 102.3 KB |
memory_hotplug.c | -rw-r--r-- | 51.4 KB |
mempolicy.c | -rw-r--r-- | 71.0 KB |
mempool.c | -rw-r--r-- | 10.7 KB |
migrate.c | -rw-r--r-- | 48.9 KB |
mincore.c | -rw-r--r-- | 7.8 KB |
mlock.c | -rw-r--r-- | 22.8 KB |
mm_init.c | -rw-r--r-- | 5.0 KB |
mmap.c | -rw-r--r-- | 88.5 KB |
mmu_context.c | -rw-r--r-- | 1.3 KB |
mmu_notifier.c | -rw-r--r-- | 10.5 KB |
mmzone.c | -rw-r--r-- | 2.4 KB |
mprotect.c | -rw-r--r-- | 10.5 KB |
mremap.c | -rw-r--r-- | 15.1 KB |
msync.c | -rw-r--r-- | 2.7 KB |
nobootmem.c | -rw-r--r-- | 10.7 KB |
nommu.c | -rw-r--r-- | 53.4 KB |
oom_kill.c | -rw-r--r-- | 20.0 KB |
page-writeback.c | -rw-r--r-- | 74.2 KB |
page_alloc.c | -rw-r--r-- | 181.9 KB |
page_cgroup.c | -rw-r--r-- | 12.0 KB |
page_io.c | -rw-r--r-- | 9.5 KB |
page_isolation.c | -rw-r--r-- | 8.6 KB |
pagewalk.c | -rw-r--r-- | 5.9 KB |
percpu-km.c | -rw-r--r-- | 2.8 KB |
percpu-vm.c | -rw-r--r-- | 10.0 KB |
percpu.c | -rw-r--r-- | 66.2 KB |
pgtable-generic.c | -rw-r--r-- | 5.2 KB |
process_vm_access.c | -rw-r--r-- | 10.2 KB |
quicklist.c | -rw-r--r-- | 2.4 KB |
readahead.c | -rw-r--r-- | 15.6 KB |
rmap.c | -rw-r--r-- | 48.6 KB |
shmem.c | -rw-r--r-- | 89.7 KB |
slab.c | -rw-r--r-- | 106.8 KB |
slab.h | -rw-r--r-- | 9.9 KB |
slab_common.c | -rw-r--r-- | 23.7 KB |
slob.c | -rw-r--r-- | 15.7 KB |
slub.c | -rw-r--r-- | 125.0 KB |
sparse-vmemmap.c | -rw-r--r-- | 6.0 KB |
sparse.c | -rw-r--r-- | 20.9 KB |
swap.c | -rw-r--r-- | 31.8 KB |
swap_state.c | -rw-r--r-- | 12.9 KB |
swapfile.c | -rw-r--r-- | 77.0 KB |
truncate.c | -rw-r--r-- | 24.4 KB |
util.c | -rw-r--r-- | 9.4 KB |
vmacache.c | -rw-r--r-- | 3.1 KB |
vmalloc.c | -rw-r--r-- | 68.1 KB |
vmpressure.c | -rw-r--r-- | 11.4 KB |
vmscan.c | -rw-r--r-- | 108.6 KB |
vmstat.c | -rw-r--r-- | 38.1 KB |
workingset.c | -rw-r--r-- | 13.6 KB |
zbud.c | -rw-r--r-- | 17.9 KB |
zpool.c | -rw-r--r-- | 9.5 KB |
zsmalloc.c | -rw-r--r-- | 30.1 KB |
zswap.c | -rw-r--r-- | 24.9 KB |
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