| Message ID | 20230314121216.413434-6-schnelle@linux.ibm.com (mailing list archive) |
|---|---|
| State | Handled Elsewhere |
| Headers | show |
| Series | Kconfig: Introduce HAS_IOPORT config option | expand |
On Tue, Mar 14, 2023 at 01:11:43PM +0100, Niklas Schnelle wrote: > In a future patch HAS_IOPORT=n will result in inb()/outb() and friends > not being declared. We thus need to add HAS_IOPORT as dependency for > those drivers using them. > > Co-developed-by: Arnd Bergmann <arnd@kernel.org> > Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com> > --- > drivers/counter/Kconfig | 1 + > 1 file changed, 1 insertion(+) > > diff --git a/drivers/counter/Kconfig b/drivers/counter/Kconfig > index b5ba8fb02cf7..1cae5097217e 100644 > --- a/drivers/counter/Kconfig > +++ b/drivers/counter/Kconfig > @@ -15,6 +15,7 @@ if COUNTER > config 104_QUAD_8 > tristate "ACCES 104-QUAD-8 driver" > depends on (PC104 && X86) || COMPILE_TEST > + depends on HAS_IOPORT > select ISA_BUS_API > help > Say yes here to build support for the ACCES 104-QUAD-8 quadrature > -- > 2.37.2 Is HAS_IOPORT needed because this driver uses devm_ioport_map()? The inb()/outb() functions and such are not used in this driver, so would it suffice to depend on HAS_IOPORT_MAP instead? William Breathitt Gray
On Tue, 2023-03-14 at 08:41 -0400, William Breathitt Gray wrote: > On Tue, Mar 14, 2023 at 01:11:43PM +0100, Niklas Schnelle wrote: > > In a future patch HAS_IOPORT=n will result in inb()/outb() and friends > > not being declared. We thus need to add HAS_IOPORT as dependency for > > those drivers using them. > > > > Co-developed-by: Arnd Bergmann <arnd@kernel.org> > > Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com> > > --- > > drivers/counter/Kconfig | 1 + > > 1 file changed, 1 insertion(+) > > > > diff --git a/drivers/counter/Kconfig b/drivers/counter/Kconfig > > index b5ba8fb02cf7..1cae5097217e 100644 > > --- a/drivers/counter/Kconfig > > +++ b/drivers/counter/Kconfig > > @@ -15,6 +15,7 @@ if COUNTER > > config 104_QUAD_8 > > tristate "ACCES 104-QUAD-8 driver" > > depends on (PC104 && X86) || COMPILE_TEST > > + depends on HAS_IOPORT > > select ISA_BUS_API > > help > > Say yes here to build support for the ACCES 104-QUAD-8 quadrature > > -- > > 2.37.2 > > Is HAS_IOPORT needed because this driver uses devm_ioport_map()? The > inb()/outb() functions and such are not used in this driver, so would it > suffice to depend on HAS_IOPORT_MAP instead? > > William Breathitt Gray Yes, good catch HAS_IOPORT_MAP indeed seems to be enough. Will be changed in v4. Thankfully the Kconfig change to add HAS_IOPORT has already landed in Linus' tree so for the future these per subsystem patches can be merged independently. Thanks, Niklas
diff --git a/drivers/counter/Kconfig b/drivers/counter/Kconfig index b5ba8fb02cf7..1cae5097217e 100644 --- a/drivers/counter/Kconfig +++ b/drivers/counter/Kconfig @@ -15,6 +15,7 @@ if COUNTER config 104_QUAD_8 tristate "ACCES 104-QUAD-8 driver" depends on (PC104 && X86) || COMPILE_TEST + depends on HAS_IOPORT select ISA_BUS_API help Say yes here to build support for the ACCES 104-QUAD-8 quadrature
In a future patch HAS_IOPORT=n will result in inb()/outb() and friends not being declared. We thus need to add HAS_IOPORT as dependency for those drivers using them. Co-developed-by: Arnd Bergmann <arnd@kernel.org> Signed-off-by: Niklas Schnelle <schnelle@linux.ibm.com> --- drivers/counter/Kconfig | 1 + 1 file changed, 1 insertion(+)