Kees Cook <keesc...@chromium.org> writes: > Using uninitialized_var() is dangerous as it papers over real bugs[1] > (or can in the future), and suppresses unrelated compiler warnings > (e.g. "unused variable"). If the compiler thinks it is uninitialized, > either simply initialize the variable or make compiler changes. > > I preparation for removing[2] the[3] macro[4], remove all remaining > needless uses with the following script: > > git grep '\buninitialized_var\b' | cut -d: -f1 | sort -u | \ > xargs perl -pi -e \ > 's/\buninitialized_var\(([^\)]+)\)/\1/g; > s:\s*/\* (GCC be quiet|to make compiler happy) \*/$::g;' > > drivers/video/fbdev/riva/riva_hw.c was manually tweaked to avoid > pathological white-space. > > No outstanding warnings were found building allmodconfig with GCC 9.3.0 > for x86_64, i386, arm64, arm, powerpc, powerpc64le, s390x, mips, sparc64, > alpha, and m68k. > > [1] https://lore.kernel.org/lkml/20200603174714.192027-1-gli...@google.com/ > [2] > https://lore.kernel.org/lkml/CA+55aFw+Vbj0i=1tgqcr5vqkczwj0qxk6cernou6eedsuda...@mail.gmail.com/ > [3] > https://lore.kernel.org/lkml/ca+55afwgbgqhbp1fkxvrkepzyr5j8n1vkt1vzdz9knmpuxh...@mail.gmail.com/ > [4] > https://lore.kernel.org/lkml/CA+55aFz2500WfbKXAx8s67wrm9=yvju65tplgn_ybynv0ve...@mail.gmail.com/ > > Signed-off-by: Kees Cook <keesc...@chromium.org>
[...] > drivers/net/wireless/ath/ath10k/core.c | 2 +- > drivers/net/wireless/ath/ath6kl/init.c | 2 +- > drivers/net/wireless/ath/ath9k/init.c | 2 +- > drivers/net/wireless/broadcom/b43/debugfs.c | 2 +- > drivers/net/wireless/broadcom/b43/dma.c | 2 +- > drivers/net/wireless/broadcom/b43/lo.c | 2 +- > drivers/net/wireless/broadcom/b43/phy_n.c | 2 +- > drivers/net/wireless/broadcom/b43/xmit.c | 12 ++++++------ > .../net/wireless/broadcom/b43legacy/debugfs.c | 2 +- > drivers/net/wireless/broadcom/b43legacy/main.c | 2 +- > drivers/net/wireless/intel/iwlegacy/3945.c | 2 +- > drivers/net/wireless/intel/iwlegacy/4965-mac.c | 2 +- > .../net/wireless/realtek/rtlwifi/rtl8192cu/hw.c | 4 ++-- For wireless drivers: Acked-by: Kalle Valo <kv...@codeaurora.org> -- https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
