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| author |   James Hogan <james.hogan@imgtec.com> | 2015-03-27 08:33:43 +0000 |
|---|---|---|
| committer |   Ralf Baechle <ralf@linux-mips.org> | 2015-09-30 16:27:39 +0200 |
| commit | 53960059d56ecef67d4ddd546731623641a3d2d1 (patch) | |
| tree | cb02dc12f055cb377cefb98b982ec8f6ef9387e0 /arch/mips/kernel/cps-vec.S | |
| parent | MIPS: Wire up userfaultfd and membarrier syscalls. (diff) | |
| download | linux-dev-53960059d56ecef67d4ddd546731623641a3d2d1.tar.xz linux-dev-53960059d56ecef67d4ddd546731623641a3d2d1.zip | |
MIPS: dma-default: Fix 32-bit fall back to GFP_DMA
If there is a DMA zone (usually 24bit = 16MB I believe), but no DMA32
zone, as is the case for some 32-bit kernels, then massage_gfp_flags()
will cause DMA memory allocated for devices with a 32..63-bit
coherent_dma_mask to fall back to using __GFP_DMA, even though there may
only be 32-bits of physical address available anyway.
Correct that case to compare against a mask the size of phys_addr_t
instead of always using a 64-bit mask.
Signed-off-by: James Hogan <james.hogan@imgtec.com>
Fixes: a2e715a86c6d ("MIPS: DMA: Fix computation of DMA flags from device's coherent_dma_mask.")
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: linux-mips@linux-mips.org
Cc: <stable@vger.kernel.org> # 2.6.36+
Patchwork: https://patchwork.linux-mips.org/patch/9610/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to '')
0 files changed, 0 insertions, 0 deletions