From: Rik van Riel Date: Thu, 24 Jul 2008 04:27:07 +0000 (-0700) Subject: use generic_access_phys for /dev/mem mappings X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=7ae8ed5053a39082d224a3f48409e016baca9c16;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git use generic_access_phys for /dev/mem mappings Use generic_access_phys as the access_process_vm access function for /dev/mem mappings. This makes it possible to debug the X server. [akpm@linux-foundation.org: repair all the architectures which broke] Signed-off-by: Rik van Riel Cc: Benjamin Herrensmidt Cc: Dave Airlie Cc: Hugh Dickins Cc: Paul Mackerras Cc: Arnd Bergmann Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- diff --git a/arch/x86/pci/i386.c b/arch/x86/pci/i386.c index 2aafb67dc5f1..a09505806b82 100644 --- a/arch/x86/pci/i386.c +++ b/arch/x86/pci/i386.c @@ -280,6 +280,7 @@ static void pci_track_mmap_page_range(struct vm_area_struct *vma) static struct vm_operations_struct pci_mmap_ops = { .open = pci_track_mmap_page_range, .close = pci_unmap_page_range, + .access = generic_access_phys, }; int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma, diff --git a/drivers/char/mem.c b/drivers/char/mem.c index c2dba82eb5f7..672b08e694d0 100644 --- a/drivers/char/mem.c +++ b/drivers/char/mem.c @@ -327,7 +327,10 @@ static void mmap_mem_close(struct vm_area_struct *vma) static struct vm_operations_struct mmap_mem_ops = { .open = mmap_mem_open, - .close = mmap_mem_close + .close = mmap_mem_close, +#ifdef CONFIG_HAVE_IOREMAP_PROT + .access = generic_access_phys +#endif }; static int mmap_mem(struct file * file, struct vm_area_struct * vma)