This is a note to let you know that I've just added the patch titled
fbdev/hyperv-fb: Do not set struct fb_info.apertures
to the 6.1-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
fbdev-hyperv-fb-do-not-set-struct-fb_info.apertures.patch
and it can be found in the queue-6.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 1d05bd8a9820bca9ebf1d6035e032deb0ae257a2
Author: Thomas Zimmermann <tzimmermann@xxxxxxx>
Date: Mon Dec 19 17:05:06 2022 +0100
fbdev/hyperv-fb: Do not set struct fb_info.apertures
[ Upstream commit 81d2393485f0990cf6566b0c9e0697c199f68ae5 ]
Generic fbdev drivers use the apertures field in struct fb_info to
control ownership of the framebuffer memory and graphics device. Do
not set the values in hyperv-fb.
Signed-off-by: Thomas Zimmermann <tzimmermann@xxxxxxx>
Reviewed-by: Javier Martinez Canillas <javierm@xxxxxxxxxx>
Reviewed-by: Michael Kelley <mikelley@xxxxxxxxxxxxx>
Link: https://patchwork.freedesktop.org/patch/msgid/20221219160516.23436-9-tzimmermann@xxxxxxx
Stable-dep-of: 5ae3716cfdcd ("video/aperture: Only remove sysfb on the default vga pci device")
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/video/fbdev/hyperv_fb.c b/drivers/video/fbdev/hyperv_fb.c
index 4ff25dfc865d9..d3d643cf7506c 100644
--- a/drivers/video/fbdev/hyperv_fb.c
+++ b/drivers/video/fbdev/hyperv_fb.c
@@ -995,13 +995,10 @@ static int hvfb_getmem(struct hv_device *hdev, struct fb_info *info)
struct pci_dev *pdev = NULL;
void __iomem *fb_virt;
int gen2vm = efi_enabled(EFI_BOOT);
+ resource_size_t base, size;
phys_addr_t paddr;
int ret;
- info->apertures = alloc_apertures(1);
- if (!info->apertures)
- return -ENOMEM;
-
if (!gen2vm) {
pdev = pci_get_device(PCI_VENDOR_ID_MICROSOFT,
PCI_DEVICE_ID_HYPERV_VIDEO, NULL);
@@ -1010,8 +1007,8 @@ static int hvfb_getmem(struct hv_device *hdev, struct fb_info *info)
return -ENODEV;
}
- info->apertures->ranges[0].base = pci_resource_start(pdev, 0);
- info->apertures->ranges[0].size = pci_resource_len(pdev, 0);
+ base = pci_resource_start(pdev, 0);
+ size = pci_resource_len(pdev, 0);
/*
* For Gen 1 VM, we can directly use the contiguous memory
@@ -1034,8 +1031,8 @@ static int hvfb_getmem(struct hv_device *hdev, struct fb_info *info)
}
pr_info("Unable to allocate enough contiguous physical memory on Gen 1 VM. Using MMIO instead.\n");
} else {
- info->apertures->ranges[0].base = screen_info.lfb_base;
- info->apertures->ranges[0].size = screen_info.lfb_size;
+ base = screen_info.lfb_base;
+ size = screen_info.lfb_size;
}
/*
@@ -1077,9 +1074,7 @@ static int hvfb_getmem(struct hv_device *hdev, struct fb_info *info)
info->screen_size = dio_fb_size;
getmem_done:
- aperture_remove_conflicting_devices(info->apertures->ranges[0].base,
- info->apertures->ranges[0].size,
- false, KBUILD_MODNAME);
+ aperture_remove_conflicting_devices(base, size, false, KBUILD_MODNAME);
if (gen2vm) {
/* framebuffer is reallocated, clear screen_info to avoid misuse from kexec */
