diff options
author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-04-28 10:32:58 +0200 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-04-28 10:32:58 +0200 |
commit | 615dca38c2eae55aff80050275931c87a812b48c (patch) | |
tree | 8674a3a3f66a39bf7c7f2ab733a757e624bd99ec /kernel/dma/mapping.c | |
parent | 3baea29dc0a7b561170d7082f831a613ae6aa56e (diff) | |
parent | b4432656b36e5cc1d50a1f2dc15357543add530e (diff) |
Merge 6.15-rc4 into usb-next
We need the USB fixes in here as well, and this resolves the following
merge conflicts that were reported in linux-next:
drivers/usb/chipidea/ci_hdrc_imx.c
drivers/usb/host/xhci.h
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel/dma/mapping.c')
-rw-r--r-- | kernel/dma/mapping.c | 25 |
1 files changed, 17 insertions, 8 deletions
diff --git a/kernel/dma/mapping.c b/kernel/dma/mapping.c index cda127027e48..051a32988040 100644 --- a/kernel/dma/mapping.c +++ b/kernel/dma/mapping.c @@ -910,6 +910,19 @@ int dma_set_coherent_mask(struct device *dev, u64 mask) } EXPORT_SYMBOL(dma_set_coherent_mask); +static bool __dma_addressing_limited(struct device *dev) +{ + const struct dma_map_ops *ops = get_dma_ops(dev); + + if (min_not_zero(dma_get_mask(dev), dev->bus_dma_limit) < + dma_get_required_mask(dev)) + return true; + + if (unlikely(ops) || use_dma_iommu(dev)) + return false; + return !dma_direct_all_ram_mapped(dev); +} + /** * dma_addressing_limited - return if the device is addressing limited * @dev: device to check @@ -920,15 +933,11 @@ EXPORT_SYMBOL(dma_set_coherent_mask); */ bool dma_addressing_limited(struct device *dev) { - const struct dma_map_ops *ops = get_dma_ops(dev); - - if (min_not_zero(dma_get_mask(dev), dev->bus_dma_limit) < - dma_get_required_mask(dev)) - return true; - - if (unlikely(ops) || use_dma_iommu(dev)) + if (!__dma_addressing_limited(dev)) return false; - return !dma_direct_all_ram_mapped(dev); + + dev_dbg(dev, "device is DMA addressing limited\n"); + return true; } EXPORT_SYMBOL_GPL(dma_addressing_limited); |