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linux/drivers/ntb
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Fedor Pchelkin fbb0967846 ntb: use 64-bit arithmetic for the MSI doorbell mask 
commit fd5625fc86 upstream.

msi_db_mask is of type 'u64', still the standard 'int' arithmetic is
performed to compute its value.

While most of the ntb_hw drivers actually don't utilize the higher 32
bits of the doorbell mask now, this may be the case for Switchtec - see
switchtec_ntb_init_db().

Found by Linux Verification Center (linuxtesting.org) with SVACE static
analysis tool.

Fixes: 2b0569b3b7 ("NTB: Add MSI interrupt support to ntb_transport")
Cc: stable@vger.kernel.org
Signed-off-by: Fedor Pchelkin <pchelkin@ispras.ru>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2025-04-25 10:43:45 +02:00
..
hw ntb: intel: Fix using link status DB's 2025-04-10 14:33:40 +02:00
test ntb_perf: Delete duplicate dmaengine_unmap_put() call in perf_copy_chunk() 2025-04-10 14:33:42 +02:00
core.c NTB: fix possible name leak in ntb_register_device() 2024-03-26 18:20:49 -04:00
Kconfig New feature to add support for NTB virtual MSI interrupts, the ability 2019-07-21 09:46:59 -07:00
Makefile New feature to add support for NTB virtual MSI interrupts, the ability 2019-07-21 09:46:59 -07:00
msi.c NTB/msi: Use struct_size() helper in devm_kzalloc() 2022-01-23 16:15:15 -05:00
ntb_transport.c ntb: use 64-bit arithmetic for the MSI doorbell mask 2025-04-25 10:43:45 +02:00