Re: [PATCH v3 2/3] Update linux headers to 5.11-rc2

[Cornelia Huck <cohuck@redhat.com>]

On Mon, 11 Jan 2021 08:00:45 -0500
"Michael S. Tsirkin" <mst@redhat.com> wrote:

> On Mon, Jan 11, 2021 at 01:54:04PM +0100, Cornelia Huck wrote:
> > On Mon,  4 Jan 2021 21:20:56 +0100
> > Eric Farman <farman@linux.ibm.com> wrote:
> >   
> > > Signed-off-by: Eric Farman <farman@linux.ibm.com>
> > > ---
> > >  .../infiniband/hw/vmw_pvrdma/pvrdma_ring.h    |  14 +-
> > >  .../infiniband/hw/vmw_pvrdma/pvrdma_verbs.h   |   2 +-
> > >  include/standard-headers/drm/drm_fourcc.h     | 175 +++++++++++++++++-
> > >  include/standard-headers/linux/const.h        |  36 ++++
> > >  include/standard-headers/linux/ethtool.h      |   2 +-
> > >  include/standard-headers/linux/fuse.h         |  30 ++-
> > >  include/standard-headers/linux/kernel.h       |   9 +-
> > >  include/standard-headers/linux/pci_regs.h     |  16 ++
> > >  include/standard-headers/linux/vhost_types.h  |   9 +
> > >  include/standard-headers/linux/virtio_gpu.h   |  82 ++++++++
> > >  include/standard-headers/linux/virtio_ids.h   |  44 +++--
> > >  linux-headers/asm-arm64/kvm.h                 |   3 -
> > >  linux-headers/asm-generic/unistd.h            |   6 +-
> > >  linux-headers/asm-mips/unistd_n32.h           |   1 +
> > >  linux-headers/asm-mips/unistd_n64.h           |   1 +
> > >  linux-headers/asm-mips/unistd_o32.h           |   1 +
> > >  linux-headers/asm-powerpc/unistd_32.h         |   1 +
> > >  linux-headers/asm-powerpc/unistd_64.h         |   1 +
> > >  linux-headers/asm-s390/unistd_32.h            |   1 +
> > >  linux-headers/asm-s390/unistd_64.h            |   1 +
> > >  linux-headers/asm-x86/kvm.h                   |   1 +
> > >  linux-headers/asm-x86/unistd_32.h             |   1 +
> > >  linux-headers/asm-x86/unistd_64.h             |   1 +
> > >  linux-headers/asm-x86/unistd_x32.h            |   1 +
> > >  linux-headers/linux/kvm.h                     |  56 +++++-
> > >  linux-headers/linux/userfaultfd.h             |   9 +
> > >  linux-headers/linux/vfio.h                    |   1 +
> > >  linux-headers/linux/vhost.h                   |   4 +
> > >  28 files changed, 461 insertions(+), 48 deletions(-)
> > >  create mode 100644 include/standard-headers/linux/const.h
> > > 
> > > diff --git a/include/standard-headers/drivers/infiniband/hw/vmw_pvrdma/pvrdma_ring.h b/include/standard-headers/drivers/infiniband/hw/vmw_pvrdma/pvrdma_ring.h
> > > index 7b4062a1a1..acd4c8346d 100644
> > > --- a/include/standard-headers/drivers/infiniband/hw/vmw_pvrdma/pvrdma_ring.h
> > > +++ b/include/standard-headers/drivers/infiniband/hw/vmw_pvrdma/pvrdma_ring.h
> > > @@ -68,7 +68,7 @@ static inline int pvrdma_idx_valid(uint32_t idx, uint32_t max_elems)
> > >  
> > >  static inline int32_t pvrdma_idx(int *var, uint32_t max_elems)
> > >  {
> > > -	const unsigned int idx = qatomic_read(var);
> > > +	const unsigned int idx = atomic_read(var);  
> > 
> > Hm, what was the state of these qatomic* instances in this header? Is
> > it ok to rename them, or do we need to do some munging in the import
> > script?
> > 
> > (Sorry, it's been a while.)  
> 
> 
> Yea looks like it was done manually last time:
> 
> commit d73415a315471ac0b127ed3fad45c8ec5d711de1
> Author: Stefan Hajnoczi <stefanha@redhat.com>
> Date:   Wed Sep 23 11:56:46 2020 +0100
> 
>     qemu/atomic.h: rename atomic_ to qatomic_

It seems that this hunk was dropped manually last time:

commit 53ba2eee52bff5a746e96835539a1079f6bcadd1
Author: Matthew Rosato <mjrosato@linux.ibm.com>
Date:   Mon Oct 26 11:34:30 2020 -0400

    linux-headers: update against 5.10-rc1
    
    commit 3650b228f83adda7e5ee532e2b90429c03f7b9ec
    
    Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com>
    [aw: drop pvrdma_ring.h changes to avoid revert of d73415a31547 ("qemu/atomic.h: rename atomic_ to qatomic_")]
    Signed-off-by: Alex Williamson <alex.williamson@redhat.com>

I can do that as well, but I'm not sure that this is the best way
forward.

> 
> 
> 
> > >  
> > >  	if (pvrdma_idx_valid(idx, max_elems))
> > >  		return idx & (max_elems - 1);
> > > @@ -77,17 +77,17 @@ static inline int32_t pvrdma_idx(int *var, uint32_t max_elems)
> > >  
> > >  static inline void pvrdma_idx_ring_inc(int *var, uint32_t max_elems)
> > >  {
> > > -	uint32_t idx = qatomic_read(var) + 1;	/* Increment. */
> > > +	uint32_t idx = atomic_read(var) + 1;	/* Increment. */
> > >  
> > >  	idx &= (max_elems << 1) - 1;		/* Modulo size, flip gen. */
> > > -	qatomic_set(var, idx);
> > > +	atomic_set(var, idx);
> > >  }
> > >  
> > >  static inline int32_t pvrdma_idx_ring_has_space(const struct pvrdma_ring *r,
> > >  					      uint32_t max_elems, uint32_t *out_tail)
> > >  {
> > > -	const uint32_t tail = qatomic_read(&r->prod_tail);
> > > -	const uint32_t head = qatomic_read(&r->cons_head);
> > > +	const uint32_t tail = atomic_read(&r->prod_tail);
> > > +	const uint32_t head = atomic_read(&r->cons_head);
> > >  
> > >  	if (pvrdma_idx_valid(tail, max_elems) &&
> > >  	    pvrdma_idx_valid(head, max_elems)) {
> > > @@ -100,8 +100,8 @@ static inline int32_t pvrdma_idx_ring_has_space(const struct pvrdma_ring *r,
> > >  static inline int32_t pvrdma_idx_ring_has_data(const struct pvrdma_ring *r,
> > >  					     uint32_t max_elems, uint32_t *out_head)
> > >  {
> > > -	const uint32_t tail = qatomic_read(&r->prod_tail);
> > > -	const uint32_t head = qatomic_read(&r->cons_head);
> > > +	const uint32_t tail = atomic_read(&r->prod_tail);
> > > +	const uint32_t head = atomic_read(&r->cons_head);
> > >  
> > >  	if (pvrdma_idx_valid(tail, max_elems) &&
> > >  	    pvrdma_idx_valid(head, max_elems)) {  
>