staging/rdma/hfi1: do not use u8 to store a 32-bit integer

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hfi1_rc_hdrerr() stores the result of be32_to_cpu() into opcode, which
is a local variable declared as u8.  Later this variable is used in a
24-bit logical right shift, which makes clang complains (when building
an allmodconfig kernel with LLVMLinux patches):

    drivers/staging/rdma/hfi1/rc.c:2399:9: warning: shift count >= width
    of type [-Wshift-count-overflow]
        opcode >>= 24;
               ^   ~~

All of this lead to the point that opcode may have been designed to be
a 32-bit integer instead of an 8-bit one.  Therefore make this variable
u32.

Signed-off-by: Nicolas Iooss <nicolas.iooss_linux@m4x.org>
Acked-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

...

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Nicolas Iooss 2015-09-20 16:07:15 +02:00 • committed by Greg Kroah-Hartman

parent 713519c710

commit 49c3203707

1 changed files with 1 additions and 1 deletions

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drivers/staging/rdma/hfi1/rc.c

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