The patch titled
Subject: drivers/gpu/drm/amd/amdkfd: use in_compat_syscall to check open() caller type
has been removed from the -mm tree. Its filename was
amdkfd-use-in_compat_syscall-to-check-open-caller-type.patch
This patch was dropped because it was merged into mainline or a subsystem tree
------------------------------------------------------
From: Andy Lutomirski <luto@xxxxxxxxxx>
Subject: drivers/gpu/drm/amd/amdkfd: use in_compat_syscall to check open() caller type
amdkfd wants to know syscall type, not task type. Check directly.
Unfortunately, amdkfd is making nasty assumptions that a process' bitness
is a well-defined constant thing. This isn't the case on x86. I don't
know how much this matters, but this patch has no effect on generated code
on x86, so amdkfd is equally broken with and without this patch.
Signed-off-by: Andy Lutomirski <luto@xxxxxxxxxx>
Cc: Oded Gabbay <oded.gabbay@xxxxxxxxx>
Cc: David Airlie <airlied@xxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/amd/amdkfd/kfd_chardev.c | 2 +-
drivers/gpu/drm/amd/amdkfd/kfd_process.c | 2 +-
2 files changed, 2 insertions(+), 2 deletions(-)
diff -puN drivers/gpu/drm/amd/amdkfd/kfd_chardev.c~amdkfd-use-in_compat_syscall-to-check-open-caller-type drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
--- a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c~amdkfd-use-in_compat_syscall-to-check-open-caller-type
+++ a/drivers/gpu/drm/amd/amdkfd/kfd_chardev.c
@@ -107,7 +107,7 @@ static int kfd_open(struct inode *inode,
if (iminor(inode) != 0)
return -ENODEV;
- is_32bit_user_mode = is_compat_task();
+ is_32bit_user_mode = in_compat_syscall();
if (is_32bit_user_mode == true) {
dev_warn(kfd_device,
diff -puN drivers/gpu/drm/amd/amdkfd/kfd_process.c~amdkfd-use-in_compat_syscall-to-check-open-caller-type drivers/gpu/drm/amd/amdkfd/kfd_process.c
--- a/drivers/gpu/drm/amd/amdkfd/kfd_process.c~amdkfd-use-in_compat_syscall-to-check-open-caller-type
+++ a/drivers/gpu/drm/amd/amdkfd/kfd_process.c
@@ -311,7 +311,7 @@ static struct kfd_process *create_proces
goto err_process_pqm_init;
/* init process apertures*/
- process->is_32bit_user_mode = is_compat_task();
+ process->is_32bit_user_mode = in_compat_syscall();
if (kfd_init_apertures(process) != 0)
goto err_init_apretures;
_
Patches currently in -mm which might be from luto@xxxxxxxxxx are
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