From: Helge Deller <deller@gmx.de>

Two and a half decades ago, there were plans to support HP-UX syscalls
in Linux. This was never fully implemented, never worked and was never
actually used by anybody.
Let's simply drop this define now and free it up for other usages.

Signed-off-by: Helge Deller <deller@gmx.de>
---
 include/uapi/linux/personality.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/include/uapi/linux/personality.h b/include/uapi/linux/personality.h
index 49796b7756af..243f5f80a7b8 100644
--- a/include/uapi/linux/personality.h
+++ b/include/uapi/linux/personality.h
@@ -62,7 +62,6 @@ enum {
 	PER_SOLARIS =		0x000d | STICKY_TIMEOUTS,
 	PER_UW7 =		0x000e | STICKY_TIMEOUTS | MMAP_PAGE_ZERO,
 	PER_OSF4 =		0x000f,			 /* OSF/1 v4 */
-	PER_HPUX =		0x0010,
 	PER_MASK =		0x00ff,
 };
 
-- 
2.54.0

On Fri, Jul 31, 2026 at 02:56:51PM +0200, Helge Deller wrote:
> From: Helge Deller <deller@gmx.de>
> 
> Two and a half decades ago, there were plans to support HP-UX syscalls
> in Linux. This was never fully implemented, never worked and was never
> actually used by anybody.
> Let's simply drop this define now and free it up for other usages.

Looks good:

Reviewed-by: Christoph Hellwig <hch@lst.de>

There's not real tree for include/uapi/linux/personality.h, maybe
we can get Andrew to merge it through -mm?

> 
> Signed-off-by: Helge Deller <deller@gmx.de>
> ---
>  include/uapi/linux/personality.h | 1 -
>  1 file changed, 1 deletion(-)
> 
> diff --git a/include/uapi/linux/personality.h b/include/uapi/linux/personality.h
> index 49796b7756af..243f5f80a7b8 100644
> --- a/include/uapi/linux/personality.h
> +++ b/include/uapi/linux/personality.h
> @@ -62,7 +62,6 @@ enum {
>  	PER_SOLARIS =		0x000d | STICKY_TIMEOUTS,
>  	PER_UW7 =		0x000e | STICKY_TIMEOUTS | MMAP_PAGE_ZERO,
>  	PER_OSF4 =		0x000f,			 /* OSF/1 v4 */
> -	PER_HPUX =		0x0010,
>  	PER_MASK =		0x00ff,
>  };
>  
> -- 
> 2.54.0
> 
---end quoted text---

On 8/4/26 14:59, Christoph Hellwig wrote:
> On Fri, Jul 31, 2026 at 02:56:51PM +0200, Helge Deller wrote:
>> From: Helge Deller <deller@gmx.de>
>>
>> Two and a half decades ago, there were plans to support HP-UX syscalls
>> in Linux. This was never fully implemented, never worked and was never
>> actually used by anybody.
>> Let's simply drop this define now and free it up for other usages.
> 
> Looks good:
> 
> Reviewed-by: Christoph Hellwig <hch@lst.de>
> 
> There's not real tree for include/uapi/linux/personality.h, maybe
> we can get Andrew to merge it through -mm?

I can take it with the parisc linux tree, if ok for you.

Helge

>> Signed-off-by: Helge Deller <deller@gmx.de>
>> ---
>>   include/uapi/linux/personality.h | 1 -
>>   1 file changed, 1 deletion(-)
>>
>> diff --git a/include/uapi/linux/personality.h b/include/uapi/linux/personality.h
>> index 49796b7756af..243f5f80a7b8 100644
>> --- a/include/uapi/linux/personality.h
>> +++ b/include/uapi/linux/personality.h
>> @@ -62,7 +62,6 @@ enum {
>>   	PER_SOLARIS =		0x000d | STICKY_TIMEOUTS,
>>   	PER_UW7 =		0x000e | STICKY_TIMEOUTS | MMAP_PAGE_ZERO,
>>   	PER_OSF4 =		0x000f,			 /* OSF/1 v4 */
>> -	PER_HPUX =		0x0010,
>>   	PER_MASK =		0x00ff,
>>   };
>>   
>> -- 
>> 2.54.0
>>
> ---end quoted text---

On Tue, Aug 04, 2026 at 03:02:11PM +0200, Helge Deller wrote:
> > Reviewed-by: Christoph Hellwig <hch@lst.de>
> > 
> > There's not real tree for include/uapi/linux/personality.h, maybe
> > we can get Andrew to merge it through -mm?
> 
> I can take it with the parisc linux tree, if ok for you.

Works for me, thanks.