From 506ada89629ec7059b96ecfb0dc7d33ece0103ca Mon Sep 17 00:00:00 2001 From: Eduard Zingerman Date: Fri, 4 Sep 2026 17:05:56 -0700 Subject: bpf: mark a NULL kfunc argument precise check_kfunc_arg() allows bpf_register_is_null() for nullable arguments w/o marking the underlying scalar register precise. Hence a checkpoint created on such a path would prune against arbitrary scalar value. Fixes: 3bda08b63670 ("bpf: Allow NULL buffers in bpf_dynptr_slice(_rw)") Signed-off-by: Eduard Zingerman Link: https://lore.kernel.org/r/20260904-register-is-null-precise-fixes-v1-5-0f5a360ff15d@gmail.com Signed-off-by: Alexei Starovoitov --- drivers/spi/spi-intel-platform.c | 43 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 drivers/spi/spi-intel-platform.c (limited to 'drivers/spi/spi-intel-platform.c') diff --git a/drivers/spi/spi-intel-platform.c b/drivers/spi/spi-intel-platform.c new file mode 100644 index 000000000..6cbed0b2e --- /dev/null +++ b/drivers/spi/spi-intel-platform.c @@ -0,0 +1,43 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Intel PCH/PCU SPI flash platform driver. + * + * Copyright (C) 2016 - 2022, Intel Corporation + * Author: Mika Westerberg + */ + +#include +#include + +#include "spi-intel.h" + +static int intel_spi_platform_probe(struct platform_device *pdev) +{ + struct intel_spi_boardinfo *info; + void __iomem *base; + + info = dev_get_platdata(&pdev->dev); + if (!info) + return -EINVAL; + + base = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(base)) + return PTR_ERR(base); + + return intel_spi_probe(&pdev->dev, base, info); +} + +static struct platform_driver intel_spi_platform_driver = { + .probe = intel_spi_platform_probe, + .driver = { + .name = "intel-spi", + .dev_groups = intel_spi_groups, + }, +}; + +module_platform_driver(intel_spi_platform_driver); + +MODULE_DESCRIPTION("Intel PCH/PCU SPI flash platform driver"); +MODULE_AUTHOR("Mika Westerberg "); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:intel-spi"); -- cgit v1.3.1