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crypto: hisilicon/qm - check whether the input function and PF are on the same device

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[ Upstream commit 6a2c9164b52e6bc134127fd543461fdef95cc8ec ]

Function rate limiting is set through physical function driver.
Users configure by providing function information and rate limit values.
Before configuration, it is necessary to check whether the
provided function and PF belong to the same device.

Fixes: 22d7a6c39c ("crypto: hisilicon/qm - add pci bdf number check")
Signed-off-by: Zhushuai Yin <yinzhushuai@huawei.com>
Signed-off-by: Chenghai Huang <huangchenghai2@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Zhushuai Yin
2025-08-21 09:38:07 +08:00
committed by Greg Kroah-Hartman
parent c9035e9ba5
commit 3a7802716d
1 changed files with 4 additions and 0 deletions
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4
drivers/crypto/hisilicon/qm.c
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@@ -3748,6 +3748,10 @@ static ssize_t qm_get_qos_value(struct hisi_qm *qm, const char *buf,
}
pdev = container_of(dev, struct pci_dev, dev);
if (pci_physfn(pdev) != qm->pdev) {
pci_err(qm->pdev, "the pdev input does not match the pf!\n");
return -EINVAL;
}
*fun_index = pdev->devfn;