修改GPIO导出默认初始值

hc

2024-10-16 50a212ec906f7524620675f0c57357691c26c81f

 kernel/drivers/infiniband/hw/hfi1/user_exp_rcv.h
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@@ -1,6 +1,7 @@
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 #ifndef _HFI1_USER_EXP_RCV_H
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 #define _HFI1_USER_EXP_RCV_H
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 /*
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+ * Copyright(c) 2020 - Cornelis Networks, Inc.
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  * Copyright(c) 2015 - 2017 Intel Corporation.
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  *
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  * This file is provided under a dual BSD/GPLv2 license.  When using or
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@@ -48,7 +49,6 @@
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  */
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 #include "hfi.h"
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-
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 #include "exp_rcv.h"
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 struct tid_pageset {
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@@ -57,6 +57,8 @@
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 };
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 struct tid_user_buf {
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+	struct mmu_interval_notifier notifier;
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+	struct mutex cover_mutex;
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 	unsigned long vaddr;
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 	unsigned long length;
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 	unsigned int npages;
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@@ -66,14 +68,16 @@
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 };
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 struct tid_rb_node {
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-	struct mmu_rb_node mmu;
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+	struct mmu_interval_notifier notifier;
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+	struct hfi1_filedata *fdata;
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+	struct mutex invalidate_mutex; /* covers hw removal */
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 	unsigned long phys;
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 	struct tid_group *grp;
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 	u32 rcventry;
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 	dma_addr_t dma_addr;
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 	bool freed;
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 	unsigned int npages;
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-	struct page *pages[0];
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+	struct page *pages[];
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 };
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 static inline int num_user_pages(unsigned long addr,
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@@ -95,4 +99,9 @@
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 int hfi1_user_exp_rcv_invalid(struct hfi1_filedata *fd,
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 			      struct hfi1_tid_info *tinfo);
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+static inline struct mm_struct *mm_from_tid_node(struct tid_rb_node *node)
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+{
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+	return node->notifier.mm;
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+}
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+
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 #endif /* _HFI1_USER_EXP_RCV_H */