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Date: Mon, 18 Oct 2021 18:42:03 -0700 From: Nathan Chancellor <nathan@...nel.org> To: Jesse Brandeburg <jesse.brandeburg@...el.com>, Tony Nguyen <anthony.l.nguyen@...el.com>, "David S. Miller" <davem@...emloft.net>, Jakub Kicinski <kuba@...nel.org> Cc: Nick Desaulniers <ndesaulniers@...gle.com>, intel-wired-lan@...ts.osuosl.org, netdev@...r.kernel.org, linux-kernel@...r.kernel.org, llvm@...ts.linux.dev, Nathan Chancellor <nathan@...nel.org> Subject: [PATCH] ice: Fix clang -Wimplicit-fallthrough in ice_pull_qvec_from_rc() Clang warns: drivers/net/ethernet/intel/ice/ice_lib.c:1906:2: error: unannotated fall-through between switch labels [-Werror,-Wimplicit-fallthrough] default: ^ drivers/net/ethernet/intel/ice/ice_lib.c:1906:2: note: insert 'break;' to avoid fall-through default: ^ break; 1 error generated. Clang is a little more pedantic than GCC, which does not warn when falling through to a case that is just break or return. Clang's version is more in line with the kernel's own stance in deprecated.rst, which states that all switch/case blocks must end in either break, fallthrough, continue, goto, or return. Add the missing break to silence the warning. Link: https://github.com/ClangBuiltLinux/linux/issues/1482 Signed-off-by: Nathan Chancellor <nathan@...nel.org> --- drivers/net/ethernet/intel/ice/ice_lib.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/net/ethernet/intel/ice/ice_lib.c b/drivers/net/ethernet/intel/ice/ice_lib.c index f981e77f72ad..03443c060507 100644 --- a/drivers/net/ethernet/intel/ice/ice_lib.c +++ b/drivers/net/ethernet/intel/ice/ice_lib.c @@ -1903,6 +1903,7 @@ static struct ice_q_vector *ice_pull_qvec_from_rc(struct ice_ring_container *rc) case ICE_TX_CONTAINER: if (rc->tx_ring) return rc->tx_ring->q_vector; + break; default: break; } base-commit: 939a6567f976efb8b3e6d601ce35eb56b17babd0 -- 2.33.1.637.gf443b226ca
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