On Wed, Jan 06, 2021 at 08:12:27PM +, Ionela Voinescu wrote:
> Initially I though it always only makes sense to have a __iomem pointer.
> That is, it only makes sense to have a pointer with a cookie attached
> specifying that it addresses a device memory space that should only be
> accessed
On Wednesday 06 Jan 2021 at 17:47:58 (+), Al Viro wrote:
> On Wed, Jan 06, 2021 at 03:07:24PM +, Ionela Voinescu wrote:
>
> > > > > 367 switch ((u64)reg->address) {
> > >
> > > That's not a dereference but I guess sparse complains of dropping the
> > > __iomem. We could change
On Wed, Jan 06, 2021 at 03:07:24PM +, Ionela Voinescu wrote:
> > > > 367switch ((u64)reg->address) {
> >
> > That's not a dereference but I guess sparse complains of dropping the
> > __iomem. We could change the cast to (__force u64) to silence sparse.
Oh, yes, it is - that of
Hi,
On Wednesday 06 Jan 2021 at 16:13:53 (+), Al Viro wrote:
> On Wed, Jan 06, 2021 at 03:52:14PM +, Ionela Voinescu wrote:
> > > > > > vim +367 arch/arm64/kernel/topology.c
> > > > > >
> > > > > >362
> > > > > >363 int cpc_read_ffh(int cpu, struct cpc_reg *reg, u64
On Wed, Jan 06, 2021 at 03:52:14PM +, Ionela Voinescu wrote:
> > > > > vim +367 arch/arm64/kernel/topology.c
> > > > >
> > > > >362
> > > > >363int cpc_read_ffh(int cpu, struct cpc_reg *reg, u64 *val)
> > > > >364{
> > > > >365int ret =
ILER=gcc-9.3.0 make.cross
> > > > C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=arm64
> > > >
> > > > If you fix the issue, kindly add following tag as appropriate
> > > > Reported-by: kernel test robot
> > > >
> >
linux build tree
> > > COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross
> > > C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=arm64
> > >
> > > If you fix the issue, kindly add following tag as appropriate
> > > R
> > If you fix the issue, kindly add following tag as appropriate
> > Reported-by: kernel test robot
> >
> >
> > "sparse warnings: (new ones prefixed by >>)"
> > >> arch/arm64/kernel/topology.c:367:22: sparse: sparse: dereference of
&g
"sparse warnings: (new ones prefixed by >>)"
>> arch/arm64/kernel/topology.c:367:22: sparse: sparse: dereference of noderef
>> expression
vim +367 arch/arm64/kernel/topology.c
362
363 int cpc_read_ffh(int cpu, struct cpc_reg *reg, u64 *val)
36
OME/0day COMPILER=gcc-9.3.0 make.cross C=1
> CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=arm64
>
> If you fix the issue, kindly add following tag as appropriate
> Reported-by: kernel test robot
>
>
> "sparse warnings: (new ones prefixed by >>)"
> >> ar
"sparse warnings: (new ones prefixed by >>)"
>> arch/arm64/kernel/topology.c:367:22: sparse: sparse: dereference of noderef
>> expression
vim +367 arch/arm64/kernel/topology.c
362
363 int cpc_read_ffh(int cpu, struct cpc_reg *reg, u64 *val)
36
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