From 9d37b8b92faabfa4b2cd29041d586b2176f6016d Mon Sep 17 00:00:00 2001
From: Andreas Noack <andreas@noack.dk>
Date: Mon, 1 Jun 2020 10:42:54 +0200
Subject: [PATCH] Revert "Use norm instead of abs in generic lu factorization
 (#34575)"

This reverts commit ecc0c434fae2438c05093b0fb1443b21c5463825.
---
 stdlib/LinearAlgebra/src/lu.jl       | 4 ++--
 stdlib/LinearAlgebra/test/generic.jl | 2 --
 2 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/stdlib/LinearAlgebra/src/lu.jl b/stdlib/LinearAlgebra/src/lu.jl
index 18ba0bbe11e6a..c770f478d4f4a 100644
--- a/stdlib/LinearAlgebra/src/lu.jl
+++ b/stdlib/LinearAlgebra/src/lu.jl
@@ -140,9 +140,9 @@ function generic_lufact!(A::StridedMatrix{T}, ::Val{Pivot} = Val(true);
             # find index max
             kp = k
             if Pivot
-                amax = norm(zero(T))
+                amax = abs(zero(T))
                 for i = k:m
-                    absi = norm(A[i,k])
+                    absi = abs(A[i,k])
                     if absi > amax
                         kp = i
                         amax = absi
diff --git a/stdlib/LinearAlgebra/test/generic.jl b/stdlib/LinearAlgebra/test/generic.jl
index de7eade6030b3..9ca508d9a9908 100644
--- a/stdlib/LinearAlgebra/test/generic.jl
+++ b/stdlib/LinearAlgebra/test/generic.jl
@@ -365,8 +365,6 @@ LinearAlgebra.Transpose(a::ModInt{n}) where {n} = transpose(a)
 
     # Needed for pivoting:
     Base.abs(a::ModInt{n}) where {n} = a
-    LinearAlgebra.norm(a::ModInt{n}) where {n} = a
-
     Base.:<(a::ModInt{n}, b::ModInt{n}) where {n} = a.k < b.k
 
     @test A*(lu(A, Val(true))\b) == b