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Date: Mon, 4 Jul 2022 10:45:32 -0300
From: André Almeida <andrealmeid@...lia.com>
To: Alex Deucher <alexander.deucher@....com>,
'Christian König' <christian.koenig@....com>,
'Pan Xinhui' <Xinhui.Pan@....com>,
David Airlie <airlied@...ux.ie>,
Daniel Vetter <daniel@...ll.ch>,
Hawking Zhang <Hawking.Zhang@....com>,
Tao Zhou <tao.zhou1@....com>,
Felix Kuehling <Felix.Kuehling@....com>,
Jack Xiao <Jack.Xiao@....com>, amd-gfx@...ts.freedesktop.org,
dri-devel@...ts.freedesktop.org, linux-kernel@...r.kernel.org
Cc: kernel-dev@...lia.com,
André Almeida <andrealmeid@...lia.com>
Subject: [PATCH] drm/amdpgu/debugfs: Simplify some exit paths
To avoid code repetition, unify the function exit path when possible. No
functional changes.
Signed-off-by: André Almeida <andrealmeid@...lia.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c | 107 ++++++++------------
1 file changed, 42 insertions(+), 65 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
index f3ac7912c29c..f3b3c688e4e7 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
@@ -383,12 +383,8 @@ static ssize_t amdgpu_debugfs_regs_pcie_read(struct file *f, char __user *buf,
value = RREG32_PCIE(*pos);
r = put_user(value, (uint32_t *)buf);
- if (r) {
- pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
- pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
- amdgpu_virt_disable_access_debugfs(adev);
- return r;
- }
+ if (r)
+ goto out;
result += 4;
buf += 4;
@@ -396,11 +392,12 @@ static ssize_t amdgpu_debugfs_regs_pcie_read(struct file *f, char __user *buf,
size -= 4;
}
+ r = result;
+out:
pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
-
amdgpu_virt_disable_access_debugfs(adev);
- return result;
+ return r;
}
/**
@@ -441,12 +438,8 @@ static ssize_t amdgpu_debugfs_regs_pcie_write(struct file *f, const char __user
uint32_t value;
r = get_user(value, (uint32_t *)buf);
- if (r) {
- pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
- pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
- amdgpu_virt_disable_access_debugfs(adev);
- return r;
- }
+ if (r)
+ goto out;
WREG32_PCIE(*pos, value);
@@ -456,11 +449,12 @@ static ssize_t amdgpu_debugfs_regs_pcie_write(struct file *f, const char __user
size -= 4;
}
+ r = result;
+out:
pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
-
amdgpu_virt_disable_access_debugfs(adev);
- return result;
+ return r;
}
/**
@@ -502,12 +496,8 @@ static ssize_t amdgpu_debugfs_regs_didt_read(struct file *f, char __user *buf,
value = RREG32_DIDT(*pos >> 2);
r = put_user(value, (uint32_t *)buf);
- if (r) {
- pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
- pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
- amdgpu_virt_disable_access_debugfs(adev);
- return r;
- }
+ if (r)
+ goto out;
result += 4;
buf += 4;
@@ -515,11 +505,12 @@ static ssize_t amdgpu_debugfs_regs_didt_read(struct file *f, char __user *buf,
size -= 4;
}
+ r = result;
+out:
pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
-
amdgpu_virt_disable_access_debugfs(adev);
- return result;
+ return r;
}
/**
@@ -560,12 +551,8 @@ static ssize_t amdgpu_debugfs_regs_didt_write(struct file *f, const char __user
uint32_t value;
r = get_user(value, (uint32_t *)buf);
- if (r) {
- pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
- pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
- amdgpu_virt_disable_access_debugfs(adev);
- return r;
- }
+ if (r)
+ goto out;
WREG32_DIDT(*pos >> 2, value);
@@ -575,11 +562,12 @@ static ssize_t amdgpu_debugfs_regs_didt_write(struct file *f, const char __user
size -= 4;
}
+ r = result;
+out:
pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
-
amdgpu_virt_disable_access_debugfs(adev);
- return result;
+ return r;
}
/**
@@ -621,12 +609,8 @@ static ssize_t amdgpu_debugfs_regs_smc_read(struct file *f, char __user *buf,
value = RREG32_SMC(*pos);
r = put_user(value, (uint32_t *)buf);
- if (r) {
- pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
- pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
- amdgpu_virt_disable_access_debugfs(adev);
- return r;
- }
+ if (r)
+ goto out;
result += 4;
buf += 4;
@@ -634,11 +618,12 @@ static ssize_t amdgpu_debugfs_regs_smc_read(struct file *f, char __user *buf,
size -= 4;
}
+ r = result;
+out:
pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
-
amdgpu_virt_disable_access_debugfs(adev);
- return result;
+ return r;
}
/**
@@ -679,12 +664,8 @@ static ssize_t amdgpu_debugfs_regs_smc_write(struct file *f, const char __user *
uint32_t value;
r = get_user(value, (uint32_t *)buf);
- if (r) {
- pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
- pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
- amdgpu_virt_disable_access_debugfs(adev);
- return r;
- }
+ if (r)
+ goto out;
WREG32_SMC(*pos, value);
@@ -694,11 +675,12 @@ static ssize_t amdgpu_debugfs_regs_smc_write(struct file *f, const char __user *
size -= 4;
}
+ r = result;
+out:
pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
-
amdgpu_virt_disable_access_debugfs(adev);
- return result;
+ return r;
}
/**
@@ -1090,11 +1072,8 @@ static ssize_t amdgpu_debugfs_gfxoff_write(struct file *f, const char __user *bu
uint32_t value;
r = get_user(value, (uint32_t *)buf);
- if (r) {
- pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
- pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
- return r;
- }
+ if (r)
+ goto out;
amdgpu_gfx_off_ctrl(adev, value ? true : false);
@@ -1104,10 +1083,12 @@ static ssize_t amdgpu_debugfs_gfxoff_write(struct file *f, const char __user *bu
size -= 4;
}
+ r = result;
+out:
pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
- return result;
+ return r;
}
@@ -1139,18 +1120,12 @@ static ssize_t amdgpu_debugfs_gfxoff_read(struct file *f, char __user *buf,
uint32_t value;
r = amdgpu_get_gfx_off_status(adev, &value);
- if (r) {
- pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
- pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
- return r;
- }
+ if (r)
+ goto out;
r = put_user(value, (uint32_t *)buf);
- if (r) {
- pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
- pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
- return r;
- }
+ if (r)
+ goto out;
result += 4;
buf += 4;
@@ -1158,10 +1133,12 @@ static ssize_t amdgpu_debugfs_gfxoff_read(struct file *f, char __user *buf,
size -= 4;
}
+ r = result;
+out:
pm_runtime_mark_last_busy(adev_to_drm(adev)->dev);
pm_runtime_put_autosuspend(adev_to_drm(adev)->dev);
- return result;
+ return r;
}
static const struct file_operations amdgpu_debugfs_regs2_fops = {
--
2.36.1
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