diff --git a/src/buffer.c b/src/buffer.c
index 174ca1e..60b7c80 100644
--- a/src/buffer.c
+++ b/src/buffer.c
@@ -2560,7 +2560,6 @@
     }
 }
 
-#if defined(FEAT_QUICKFIX) || defined(FEAT_EVAL) || defined(FEAT_SPELL) || defined(PROTO)
 /*
  * Find file in buffer list by name (it has to be for the current window).
  * Returns NULL if not found.
@@ -2586,7 +2585,6 @@
     }
     return buf;
 }
-#endif
 
 /*
  * Find file in buffer list by name (it has to be for the current window).
diff --git a/src/testdir/test_gf.vim b/src/testdir/test_gf.vim
index 8317cb5..cc12b36 100644
--- a/src/testdir/test_gf.vim
+++ b/src/testdir/test_gf.vim
@@ -292,4 +292,65 @@
   set path&
 endfunc
 
+" Test for 'switchbuf' with gf and gF commands
+func Test_gf_switchbuf()
+  call writefile(repeat(["aaa"], 10), "Xtest1", 'D')
+  edit Xtest1
+  new
+  call setline(1, ['Xtest1'])
+
+  " Test for 'useopen'
+  set switchbuf=useopen
+  call cursor(1, 1)
+  exe "normal \<C-W>f"
+  call assert_equal([2, 2], [winnr(), winnr('$')])
+  close
+
+  " If the file is opened in another tabpage, then it should not be considered
+  tabedit Xtest1
+  tabfirst
+  exe "normal \<C-W>f"
+  call assert_equal([1, 2], [winnr(), winnr('$')])
+  call assert_equal([1, 2], [tabpagenr(), tabpagenr('$')])
+  close
+
+  " Test for 'usetab'
+  set switchbuf=usetab
+  exe "normal \<C-W>f"
+  call assert_equal([1, 1], [winnr(), winnr('$')])
+  call assert_equal([2, 2], [tabpagenr(), tabpagenr('$')])
+  %bw!
+
+  " Test for CTRL-W_F with 'useopen'
+  set isfname-=:
+  call setline(1, ['Xtest1:5'])
+  set switchbuf=useopen
+  split +1 Xtest1
+  wincmd b
+  exe "normal \<C-W>F"
+  call assert_equal([1, 2], [winnr(), winnr('$')])
+  call assert_equal(5, line('.'))
+  close
+
+  " If the file is opened in another tabpage, then it should not be considered
+  tabedit +1 Xtest1
+  tabfirst
+  exe "normal \<C-W>F"
+  call assert_equal([1, 2], [winnr(), winnr('$')])
+  call assert_equal(5, line('.'))
+  call assert_equal([1, 2], [tabpagenr(), tabpagenr('$')])
+  close
+
+  " Test for CTRL_W_F with 'usetab'
+  set switchbuf=usetab
+  exe "normal \<C-W>F"
+  call assert_equal([2, 2], [tabpagenr(), tabpagenr('$')])
+  call assert_equal([1, 1], [winnr(), winnr('$')])
+  call assert_equal(5, line('.'))
+
+  set switchbuf=
+  set isfname&
+  %bw!
+endfunc
+
 " vim: shiftwidth=2 sts=2 expandtab
diff --git a/src/version.c b/src/version.c
index f13f8e0..a873172 100644
--- a/src/version.c
+++ b/src/version.c
@@ -696,6 +696,8 @@
 static int included_patches[] =
 {   /* Add new patch number below this line */
 /**/
+    1546,
+/**/
     1545,
 /**/
     1544,
diff --git a/src/window.c b/src/window.c
index 27b353e..b4b23d3 100644
--- a/src/window.c
+++ b/src/window.c
@@ -580,7 +580,29 @@
 		    need_mouse_correct = TRUE;
 #endif
 		    setpcmark();
-		    if (win_split(0, 0) == OK)
+
+		    // If 'switchbuf' is set to 'useopen' or 'usetab' and the
+		    // file is already opened in a window, then jump to it.
+		    wp = NULL;
+		    if ((swb_flags & (SWB_USEOPEN | SWB_USETAB))
+						&& cmdmod.cmod_tab == 0)
+		    {
+			buf_T *existing_buf = buflist_findname_exp(ptr);
+
+			if (existing_buf != NULL)
+			{
+			    if (swb_flags & SWB_USEOPEN)
+				wp = buf_jump_open_win(existing_buf);
+
+			    // If 'switchbuf' contains "usetab": jump to first
+			    // window in any tab page containing "existing_buf"
+			    // if one exists.
+			    if (wp == NULL && (swb_flags & SWB_USETAB))
+				wp = buf_jump_open_tab(existing_buf);
+			}
+		    }
+
+		    if (wp == NULL && win_split(0, 0) == OK)
 		    {
 			RESET_BINDING(curwin);
 			if (do_ecmd(0, ptr, NULL, NULL, ECMD_LASTL,
@@ -591,12 +613,15 @@
 			    win_close(curwin, FALSE);
 			    goto_tabpage_win(oldtab, oldwin);
 			}
-			else if (nchar == 'F' && lnum >= 0)
-			{
-			    curwin->w_cursor.lnum = lnum;
-			    check_cursor_lnum();
-			    beginline(BL_SOL | BL_FIX);
-			}
+			else
+			    wp = curwin;
+		    }
+
+		    if (wp != NULL && nchar == 'F' && lnum >= 0)
+		    {
+			curwin->w_cursor.lnum = lnum;
+			check_cursor_lnum();
+			beginline(BL_SOL | BL_FIX);
 		    }
 		    vim_free(ptr);
 		}