linux-kernel - [PATCH v2] KVM: arm64: fix doc warnings in mmu code

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Message-ID: <1600221639-4471-1-git-send-email-tanxiaofei@huawei.com>
Date:   Wed, 16 Sep 2020 10:00:39 +0800
From:   Xiaofei Tan <tanxiaofei@...wei.com>
To:     <maz@...nel.org>, <james.morse@....com>,
        <julien.thierry.kdev@...il.com>, <suzuki.poulose@....com>,
        <catalin.marinas@....com>, <will@...nel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <kvmarm@...ts.cs.columbia.edu>, <linux-kernel@...r.kernel.org>
CC:     <linuxarm@...wei.com>, Xiaofei Tan <tanxiaofei@...wei.com>
Subject: [PATCH v2] KVM: arm64: fix doc warnings in mmu code

Fix following warnings caused by mismatch bewteen function parameters
and comments.
arch/arm64/kvm/mmu.c:128: warning: Function parameter or member 'mmu' not described in '__unmap_stage2_range'
arch/arm64/kvm/mmu.c:128: warning: Function parameter or member 'may_block' not described in '__unmap_stage2_range'
arch/arm64/kvm/mmu.c:128: warning: Excess function parameter 'kvm' description in '__unmap_stage2_range'
arch/arm64/kvm/mmu.c:499: warning: Function parameter or member 'writable' not described in 'kvm_phys_addr_ioremap'
arch/arm64/kvm/mmu.c:538: warning: Function parameter or member 'mmu' not described in 'stage2_wp_range'
arch/arm64/kvm/mmu.c:538: warning: Excess function parameter 'kvm' description in 'stage2_wp_range'

Signed-off-by: Xiaofei Tan <tanxiaofei@...wei.com>
---
 arch/arm64/kvm/mmu.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/kvm/mmu.c b/arch/arm64/kvm/mmu.c
index e8a51799..909e995 100644
--- a/arch/arm64/kvm/mmu.c
+++ b/arch/arm64/kvm/mmu.c
@@ -114,9 +114,10 @@ static bool kvm_is_device_pfn(unsigned long pfn)
  */
 /**
  * unmap_stage2_range -- Clear stage2 page table entries to unmap a range
- * @kvm:   The VM pointer
+ * @mmu:   pointer to mmu structure to operate on
  * @start: The intermediate physical base address of the range to unmap
  * @size:  The size of the area to unmap
+ * @may_block: The flag that if block is allowed here
  *
  * Clear a range of stage-2 mappings, lowering the various ref-counts.  Must
  * be called while holding mmu_lock (unless for freeing the stage2 pgd before
@@ -493,6 +494,7 @@ void kvm_free_stage2_pgd(struct kvm_s2_mmu *mmu)
  * @guest_ipa:	The IPA at which to insert the mapping
  * @pa:		The physical address of the device
  * @size:	The size of the mapping
+ * @writable:   If it is writable here
  */
 int kvm_phys_addr_ioremap(struct kvm *kvm, phys_addr_t guest_ipa,
 			  phys_addr_t pa, unsigned long size, bool writable)
@@ -530,7 +532,7 @@ int kvm_phys_addr_ioremap(struct kvm *kvm, phys_addr_t guest_ipa,
 
 /**
  * stage2_wp_range() - write protect stage2 memory region range
- * @kvm:	The KVM pointer
+ * @mmu:        pointer to mmu structure to operate on
  * @addr:	Start address of range
  * @end:	End address of range
  */
-- 
2.8.1