Re: [PATCH 02/13] linux-headers: update against 5.10-rc1

[Matthew Rosato]

On 10/26/20 1:37 PM, Alex Williamson wrote:
> On Mon, 26 Oct 2020 11:34:30 -0400
> Matthew Rosato <mjrosato@linux.ibm.com> wrote:
>
> > commit 3650b228f83adda7e5ee532e2b90429c03f7b9ec
> >
> > Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com>
> > ---
> >   .../drivers/infiniband/hw/vmw_pvrdma/pvrdma_ring.h | 14 ++--
> >   .../infiniband/hw/vmw_pvrdma/pvrdma_verbs.h        |  2 +-
> >   include/standard-headers/linux/ethtool.h           |  2 +
> >   include/standard-headers/linux/fuse.h              | 50 +++++++++++++-
> >   include/standard-headers/linux/input-event-codes.h |  4 ++
> >   include/standard-headers/linux/pci_regs.h          |  6 +-
> >   include/standard-headers/linux/virtio_fs.h         |  3 +
> >   include/standard-headers/linux/virtio_gpu.h        | 19 ++++++
> >   include/standard-headers/linux/virtio_mmio.h       | 11 +++
> >   include/standard-headers/linux/virtio_pci.h        | 11 ++-
> >   linux-headers/asm-arm64/kvm.h                      | 25 +++++++
> >   linux-headers/asm-arm64/mman.h                     |  1 +
> >   linux-headers/asm-generic/hugetlb_encode.h         |  1 +
> >   linux-headers/asm-generic/unistd.h                 | 18 ++---
> >   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                        | 20 ++++++
> >   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                          | 19 ++++++
> >   linux-headers/linux/mman.h                         |  1 +
> >   linux-headers/linux/vfio.h                         | 29 +++++++-
> >   linux-headers/linux/vfio_zdev.h                    | 78 ++++++++++++++++++++++
> >   29 files changed, 301 insertions(+), 23 deletions(-)
> >   create mode 100644 linux-headers/linux/vfio_zdev.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 7b4062a..acd4c83 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);
> >   
> >   	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)) {
>
>
> The above is clearly just going to revert Stefan's changes to this file
> via:
>
> d73415a31547 )"qemu/atomic.h: rename atomic_ to qatomic_")
>
> For now I'm just going to drop these changes (with comment) to avoid
> that.  I'll leave it to others to fix the header update script to either
> reimplement the s/atomic_/qatomic_/ conversion or remove these code
> blocks altogether.  Sound ok?  Thanks,
>
> Alex

Yes, this makes sense to me.