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authorJason Yan <yanaijie@huawei.com>2020-06-15 12:00:47 +0800
committerRafael J. Wysocki <rafael.j.wysocki@intel.com>2020-06-24 17:36:08 +0200
commit134043cd64c96906c7c04515a745d2073d4d1939 (patch)
tree44c164fa29aa2d0361971a87860367733fd9bc2a /Documentation
parent48778464bb7d346b47157d21ffde2af6b2d39110 (diff)
ACPI: PAD: Eliminate usage of uninitialized_var() macro
This is an effort to eliminate the uninitialized_var() macro[1]. The use of this macro is the wrong solution because it forces off ANY analysis by the compiler for a given variable. It even masks "unused variable" warnings. Quoted from Linus[2]: "It's a horrible thing to use, in that it adds extra cruft to the source code, and then shuts up a compiler warning (even the _reliable_ warnings from gcc)." The gcc option "-Wmaybe-uninitialized" has been disabled and this change will not produce any warnnings even with "make W=1". Link: https://github.com/KSPP/linux/issues/81 # [1] Link: https://lore.kernel.org/lkml/CA+55aFz2500WfbKXAx8s67wrm9=yVJu65TpLgN_ybYNv0VEOKA@mail.gmail.com/ # [2] Signed-off-by: Jason Yan <yanaijie@huawei.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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