Unverified Commit c0cad32e authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!7822 LoongArch: limit min pci msi-x/msi vector number when request more than 32 vectors 

Merge Pull Request from: @ci-robot 
 
PR sync from: Hongchen Zhang <zhanghongchen@loongson.cn>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/N2PIKF6TR6M2R44H6ILNFJQ2YW2ZIYET/ 
 
https://gitee.com/openeuler/kernel/issues/I9R7M9 
 
Link:https://gitee.com/openeuler/kernel/pulls/7822

 

Reviewed-by: default avatarJuxin Gao <gaojuxin@loongson.cn>
Signed-off-by: default avatarZhang Peng <zhangpeng362@huawei.com>
parents bf0a47f9 f1e87334

drivers/pci/msi/msi.c

+6 −2
Original line number Diff line number Diff line
@@ -424,8 +424,10 @@ int __pci_enable_msi_range(struct pci_dev *dev, int minvec, int maxvec, 
	int rc;



#ifdef CONFIG_LOONGARCH

	if (maxvec > 32)

	if (maxvec > 32) {

		maxvec = pci_irq_numbers;

		minvec = min_t(int, pci_irq_numbers, minvec);

	}

#endif



	if (!pci_msi_supported(dev, minvec) || dev->current_state != PCI_D0)
@@ -810,8 +812,10 @@ int __pci_enable_msix_range(struct pci_dev *dev, struct msix_entry *entries, int 
	int hwsize, rc, nvec = maxvec;



#ifdef CONFIG_LOONGARCH

	if (maxvec > 32)

	if (maxvec > 32) {

		nvec = pci_irq_numbers;

		minvec = min_t(int, pci_irq_numbers, minvec);

	}

#endif



	if (maxvec < minvec)