pm24.git/arch/parisc/lib, branch master

net: checksum: Move from32to16() to generic header

2024-10-30T14:29:59Z

from32to16() is used by lib/checksum.c and also by arch/parisc/lib/checksum.c. The next patch will use it in the bpf_csum_diff helper. Move from32to16() to the include/net/checksum.h as csum_from32to16() and remove other implementations. Signed-off-by: Puranjay Mohan Signed-off-by: Daniel Borkmann Reviewed-by: Toke Høiland-Jørgensen Acked-by: Daniel Borkmann Link: https://lore.kernel.org/bpf/20241026125339.26459-2-puranjay@kernel.org

parisc: add u16 support to cmpxchg()

2024-04-10T05:06:00Z

Add (and export) __cmpxchg_u16(), teach __cmpxchg() to use it. And get rid of manual truncation down to u8, etc. in there - the only reason for those is to avoid bogus warnings about constant truncation from sparse, and those are easy to avoid by turning that switch into conditional expression. Signed-off-by: Al Viro Signed-off-by: Paul E. McKenney

parisc: unify implementations of __cmpxchg_u{8,32,64}

2024-04-10T05:06:00Z

identical except for type name involved Signed-off-by: Al Viro Signed-off-by: Paul E. McKenney

parisc: __cmpxchg_u32(): lift conversion into the callers

2024-04-10T05:06:00Z

__cmpxchg_u32() return value is unsigned int explicitly cast to unsigned long. Both callers are returns from functions that return unsigned long; might as well have __cmpxchg_u32() return that unsigned int (aka u32) and let the callers convert implicitly. Signed-off-by: Al Viro Signed-off-by: Paul E. McKenney

parisc: ucmpdi2: Fix no previous prototype for '__ucmpdi2' warning

2023-08-10T16:34:05Z

Signed-off-by: Helge Deller

parisc: Drop homebrewn io[read|write]64_[lo_hi|hi_lo]

2022-09-23T19:52:27Z

The parisc implements ioread64_lo_hi(), ioread64_hi_lo() iowrite64_lo_hi() and iowrite64_hi_lo() while we already have a perfectly working generic version in the generic portable assembly in . Drop the custom versions in favor for the defaults. Fixes: 77bfc8bdb5a1 ("parisc: Remove 64bit access on 32bit machines") Cc: Arnd Bergmann Acked-by: Helge Deller Reported-by: Helge Deller Reported-by: kernel test robot Signed-off-by: Linus Walleij Signed-off-by: Arnd Bergmann

parisc: Remove 64bit access on 32bit machines

2022-09-10T07:55:55Z

The parisc was using some readq/writeq accessors without special considerations as to what will happen on 32bit CPUs if you do this. Maybe we have been lucky that it "just worked" on 32bit due to the compiler behaviour, or the code paths were never executed. Fix the two offending code sites like this: arch/parisc/lib/iomap.c: - Put ifdefs around the 64bit accessors and make sure that ioread64, ioread64be, iowrite64 and iowrite64be are not available on 32bit builds. - Also fold in a bug fix where 64bit access was by mistake using 32bit writel() accessors rather than 64bit writeq(). drivers/parisc/sba_iommu.c: - Access any 64bit registers using _lo_hi-semantics by way of the readq and writeq operations provided by Signed-off-by: Linus Walleij Reviewed-by: Arnd Bergmann Cc: James E.J. Bottomley Cc: Helge Deller Cc: linux-parisc@vger.kernel.org Cc: linux-arch@vger.kernel.org Cc: Arnd Bergmann Cc: John David Anglin Signed-off-by: Arnd Bergmann

parisc: Use constants to encode the space registers like SR_KERNEL

2022-03-11T18:49:31Z

Use the provided space register constants instead of hardcoded values. Signed-off-by: Helge Deller

parisc: Add ioread64_lo_hi() and iowrite64_lo_hi()

2022-02-07T15:33:31Z

It's a followup to the previous commit f15309d7ad5d ("parisc: Add ioread64_hi_lo() and iowrite64_hi_lo()") which does only half of the job. Add the rest, so we won't get a new kernel test robot reports. Fixes: f15309d7ad5d ("parisc: Add ioread64_hi_lo() and iowrite64_hi_lo()") Signed-off-by: Andy Shevchenko Signed-off-by: Helge Deller

parisc: mark xchg functions notrace

2021-11-01T06:36:00Z

tracing the xchg functions leads to recursion in various places. Therefore mark the function as notrace. Signed-off-by: Sven Schnelle Signed-off-by: Helge Deller