Messages in this thread | | | Date | Thu, 1 Dec 2016 11:53:46 -0500 | From | Steven Rostedt <> | Subject | Re: [PATCH v3 1/5] tracing: add __print_flags_u64() |
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On Thu, 1 Dec 2016 09:37:47 -0700 Ross Zwisler <ross.zwisler@linux.intel.com> wrote:
> Add __print_flags_u64() and the helper trace_print_flags_seq_u64() in the > same spirit as __print_symbolic_u64() and trace_print_symbols_seq_u64(). > These functions allow us to print symbols associated with flags that are 64 > bits wide even on 32 bit machines. > > These will be used by the DAX code so that we can print the flags set in a > pfn_t such as PFN_SG_CHAIN, PFN_SG_LAST, PFN_DEV and PFN_MAP. > > Without this new function I was getting errors like the following when > compiling for i386: > > ./include/linux/pfn_t.h:13:22: warning: large integer implicitly truncated > to unsigned type [-Woverflow] > #define PFN_SG_CHAIN (1ULL << (BITS_PER_LONG_LONG - 1)) > ^ > > Signed-off-by: Ross Zwisler <ross.zwisler@linux.intel.com>
Reviewed-by: Steven Rostedt <rostedt@goodmis.org>
-- Steve
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