powerpc: Explicitly reverse bytes when checking for byte reversal
authorBenjamin Gray <bgray@linux.ibm.com>
Wed, 11 Oct 2023 05:37:02 +0000 (16:37 +1100)
committerMichael Ellerman <mpe@ellerman.id.au>
Thu, 19 Oct 2023 06:12:47 +0000 (17:12 +1100)
commit340a60e3725b9a229eaf03a9b3f8538f22f6ac16
tree88ddda6788d171453cfb81d721e2f417090d03bc
parentff7a60ab1e065257a0e467c13b519f4debcd7fcf
powerpc: Explicitly reverse bytes when checking for byte reversal

Sparse reports an invalid endian cast here. The code is written for
big endian platforms, so le32_to_cpu() acts as a byte reversal.

This file is checked by sparse on a little endian build though, so
replace the reverse function with the dedicated swab32() function to
better express the intent of the code.

Signed-off-by: Benjamin Gray <bgray@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20231011053711.93427-4-bgray@linux.ibm.com
arch/powerpc/sysdev/mpic.c