On Fri, 2019-03-08 at 15:33:24 UTC, "Gautham R. Shenoy" wrote:
From: "Gautham R. Shenoy" ego@linux.vnet.ibm.com
In cpu_to_drc_index() in the case when FW_FEATURE_DRC_INFO is absent, we currently use of_read_property() to obtain the pointer to the array corresponding to the property "ibm,drc-indexes". The elements of this array are of type __be32, but are accessed without any conversion to the OS-endianness, which is buggy on a Little Endian OS.
Fix this by using of_property_read_u32_index() accessor function to safely read the elements of the array.
Fixes: commit e83636ac3334 ("pseries/drc-info: Search DRC properties for CPU indexes") Cc: stable@vger.kernel.org #v4.16+ Reported-by: Pavithra R. Prakash pavrampu@in.ibm.com Signed-off-by: Gautham R. Shenoy ego@linux.vnet.ibm.com Reviewed-by: Vaidyanathan Srinivasan svaidy@linux.vnet.ibm.com
Applied to powerpc fixes, thanks.
https://git.kernel.org/powerpc/c/ce9afe08e71e3f7d64f337a6e932e508
cheers