Re: [microblaze-linux] [PATCH 2/5] microblaze: s/#if[!] CONFIG/#if[n]def CONFIG/

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Hi Geert,

NACK - please see comments below

On Mon, Feb 20, 2012 at 1:11 AM, Geert Uytterhoeven
<geert@xxxxxxxxxxxxxx> wrote:
> Signed-off-by: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
> Cc: Michal Simek <monstr@xxxxxxxxx>
> Cc: microblaze-uclinux@xxxxxxxxxxxxxx
> ---
>  arch/microblaze/include/asm/exceptions.h |    2 +-
>  arch/microblaze/include/asm/irqflags.h   |    2 +-
>  arch/microblaze/kernel/entry-nommu.S     |    2 +-
>  arch/microblaze/kernel/entry.S           |    4 ++--
>  arch/microblaze/kernel/setup.c           |    4 ++--
>  5 files changed, 7 insertions(+), 7 deletions(-)
> diff --git a/arch/microblaze/include/asm/exceptions.h b/arch/microblaze/include/asm/exceptions.h
> index e6a8dde..48c197b 100644
> --- a/arch/microblaze/include/asm/exceptions.h
> +++ b/arch/microblaze/include/asm/exceptions.h
> @@ -25,7 +25,7 @@
>  /* Define MSR enable bit for HW exceptions */
>  #define HWEX_MSR_BIT (1 << 8)

We actually care about the value of this one - it is always defined,
but is either 0 or 1 depending upon the presence or absence of this
feature in the target CPU.

These CPU feature-related configs are defined in

not as bools, but as integers. is actually a placeholder
for a design file which is emitted from the MicroBlaze CPU / SoC
design tool flow and copied into place by the user.

In my view these should remain integers rather than booleans for a
couple of reasons:
 * breakage for all current users
 * MicroBlaze is an evolving architecture, there are other cases of
seemingly boolean HW parametesr growing to become integers, such as
the USE_FPU option.  Once upon a time it was yes/no, now there's 2
different flavours of FPU as well as 'none'.  MSR is just as likely to
change in future.


This guy is also always defined (Kconfig 'hex' type), we just need to
do something different for a non-zero value.


To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at
Please read the FAQ at

[Other Archives]     [Linux Kernel Newbies]     [Linux Driver Development]     [Fedora Kernel]     [Linux Kernel Testers]     [Linux SH]     [Linux Omap]     [Linux Kbuild]     [Linux Tape]     [Linux Input]     [Linux Kernel Janitors]     [Linux Kernel Packagers]     [Linux Doc]     [Linux Man Pages]     [Linux API]     [Linux Memory Management]     [Linux Modules]     [Linux Standards]     [Kernel Announce]     [Netdev]     [Git]     [Linux PCI]     Linux CAN Development     [Linux I2C]     [Linux RDMA]     [Linux NUMA]     [Netfilter]     [Netfilter Devel]     [SELinux]     [Bugtraq]     [FIO]     [Linux Perf Users]     [Linux Serial]     [Linux PPP]     [Linux ISDN]     [Linux Next]     [Kernel Stable Commits]     [Linux Tip Commits]     [Kernel MM Commits]     [Linux Security Module]     [Filesystem Development]     [Ext3 Filesystem]     [Linux bcache]     [Ext4 Filesystem]     [Linux BTRFS]     [Linux CEPH Filesystem]     [Linux XFS]     [XFS]     [Linux NFS]     [Linux CIFS]     [Ecryptfs]     [Linux NILFS]     [Linux Cachefs]     [Reiser FS]     [Initramfs]     [Linux FB Devel]     [Linux OpenGL]     [DRI Devel]     [Fastboot]     [Linux RT Users]     [Linux RT Stable]     [eCos]     [Corosync]     [Linux Clusters]     [LVS Devel]     [Hot Plug]     [Linux Virtualization]     [KVM]     [KVM PPC]     [KVM ia64]     [Linux Containers]     [Linux Hexagon]     [Linux Cgroups]     [Util Linux]     [Wireless]     [Linux Bluetooth]     [Bluez Devel]     [Ethernet Bridging]     [Embedded Linux]     [Barebox]     [Linux MMC]     [Linux IIO]     [Sparse]     [Smatch]     [Linux Arch]     [x86 Platform Driver]     [Linux ACPI]     [Linux IBM ACPI]     [LM Sensors]     [CPU Freq]     [Linux Power Management]     [Linmodems]     [Linux DCCP]     [Linux SCTP]     [ALSA Devel]     [Linux USB]     [Linux PA RISC]     [Linux Samsung SOC]     [MIPS Linux]     [IBM S/390 Linux]     [ARM Linux]     [ARM Kernel]     [ARM MSM]     [Tegra Devel]     [Sparc Linux]     [Linux Security]     [Linux Sound]     [Linux Media]     [Video 4 Linux]     [Linux IRDA Users]     [Linux for the blind]     [Linux RAID]     [Linux ATA RAID]     [Device Mapper]     [Linux SCSI]     [SCSI Target Devel]     [Linux SCSI Target Infrastructure]     [Linux IDE]     [Linux SMP]     [Linux AXP]     [Linux Alpha]     [Linux M68K]     [Linux ia64]     [Linux 8086]     [Linux x86_64]     [Linux Config]     [Linux Apps]     [Linux MSDOS]     [Linux X.25]     [Linux Crypto]     [DM Crypt]     [Linux Trace Users]     [Linux Btrace]     [Linux Watchdog]     [Utrace Devel]     [Linux C Programming]     [Linux Assembly]     [Dash]     [DWARVES]     [Hail Devel]     [Linux Kernel Debugger]     [Linux gcc]     [Gcc Help]     [X.Org]     [Wine]

Add to Google Powered by Linux

[Older Kernel Discussion]     [Yosemite National Park Forum]     [Large Format Photos]     [Gimp]     [Yosemite Photos]     [Stuff]