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| author | Alexander Duyck | 2012-11-16 22:56:35 +0100 |
|---|---|---|
| committer | H. Peter Anvin | 2012-11-17 01:42:09 +0100 |
| commit | 05a476b6e3795f205806662bf09ab95774266292 (patch) | |
| tree | 4fc68956b8c9fdb1f7bd37c12053aa28374477ec /arch/x86/mm/init_64.c | |
| parent | x86: Make it so that __pa_symbol can only process kernel symbols on x86_64 (diff) | |
| download | kernel-qcow2-linux-05a476b6e3795f205806662bf09ab95774266292.tar.gz kernel-qcow2-linux-05a476b6e3795f205806662bf09ab95774266292.tar.xz kernel-qcow2-linux-05a476b6e3795f205806662bf09ab95774266292.zip | |
x86: Drop 4 unnecessary calls to __pa_symbol
While debugging the __pa_symbol inline patch I found that there were a couple
spots where __pa_symbol was used as follows:
__pa_symbol(x) - __pa_symbol(y)
The compiler had reduced them to:
x - y
Since we also support a debug case where __pa_symbol is a function call it
would probably be useful to just change the two cases I found so that they are
always just treated as "x - y". As such I am casting the values to
phys_addr_t and then doing simple subtraction so that the correct type and
value is returned.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Link: http://lkml.kernel.org/r/20121116215552.8521.68085.stgit@ahduyck-cp1.jf.intel.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'arch/x86/mm/init_64.c')
0 files changed, 0 insertions, 0 deletions