diff options
| author | Douglas Anderson <dianders@chromium.org> | 2026-04-06 16:22:58 -0700 |
|---|---|---|
| committer | Danilo Krummrich <dakr@kernel.org> | 2026-04-26 23:43:05 +0200 |
| commit | 9ad67f494ba6bdb4e7bb612640158f645932dca3 (patch) | |
| tree | 6b171edaed3d41d9c26d005ee4bfb9e19e2090da /kernel | |
| parent | d99167df047a12cac636188f994a9e8f1f9779ab (diff) | |
driver core: Replace dev->dma_ops_bypass with dev_dma_ops_bypass()
In C, bitfields are not necessarily safe to modify from multiple
threads without locking. Switch "dma_ops_bypass" over to the "flags"
field so modifications are safe.
Cc: Christoph Hellwig <hch@lst.de>
Cc: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Rafael J. Wysocki (Intel) <rafael@kernel.org>
Reviewed-by: Danilo Krummrich <dakr@kernel.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patch.msgid.link/20260406162231.v5.5.If62b84471ef2c85e7ad250f0468867d6dba965ab@changeid
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
Diffstat (limited to 'kernel')
| -rw-r--r-- | kernel/dma/mapping.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/kernel/dma/mapping.c b/kernel/dma/mapping.c index a81a316971ff..fe3ab94f3d83 100644 --- a/kernel/dma/mapping.c +++ b/kernel/dma/mapping.c @@ -126,11 +126,9 @@ static bool dma_go_direct(struct device *dev, dma_addr_t mask, if (likely(!ops)) return true; -#ifdef CONFIG_DMA_OPS_BYPASS - if (dev->dma_ops_bypass) + if (IS_ENABLED(CONFIG_DMA_OPS_BYPASS) && dev_dma_ops_bypass(dev)) return min_not_zero(mask, dev->bus_dma_limit) >= dma_direct_get_required_mask(dev); -#endif return false; } |