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centosplus patch
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commit 03ae3a9caf4a59edd32b65c89c375a98ce3ea1ef                                                            
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Author: Dmitry Torokhov <dmitry.torokhov@gmail.com>                                                        
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Date:   Mon Jun 25 12:02:40 2018 -0700                                                                     
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    Input: psmouse - fix button reporting for basic protocols                                              
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    The commit ba667650c568 ("Input: psmouse - clean up code") was pretty                                  
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    brain-dead and broke extra buttons reporting for variety of PS/2 mice:                                 
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    Genius, Thinkmouse and Intellimouse Explorer. We need to actually inspect                              
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    the data coming from the device when reporting events.                                                 
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    Fixes: ba667650c568 ("Input: psmouse - clean up code")
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    Reported-by: Jiri Slaby <jslaby@suse.cz>
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    Cc: stable@vger.kernel.org
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    Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
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    Applied-by: Akemi Yagi <toracat@elrepo.org>
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--- a/drivers/input/mouse/psmouse-base.c	2018-11-15 09:07:13.000000000 -0800
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+++ b/drivers/input/mouse/psmouse-base.c	2018-12-11 17:03:45.350702424 -0800
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@@ -175,8 +175,8 @@ psmouse_ret_t psmouse_process_byte(struc
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 		case 0xC0:
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 			input_report_rel(dev, REL_WHEEL,
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 					 -sign_extend32(packet[3], 3));
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-			input_report_key(dev, BTN_SIDE,  BIT(4));
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-			input_report_key(dev, BTN_EXTRA, BIT(5));
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+			input_report_key(dev, BTN_SIDE,  packet[3] & BIT(4));
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+			input_report_key(dev, BTN_EXTRA, packet[3] & BIT(5));
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 			break;
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 		}
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 		break;
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@@ -186,13 +186,13 @@ psmouse_ret_t psmouse_process_byte(struc
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 		input_report_rel(dev, REL_WHEEL, -(s8) packet[3]);
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 		/* Extra buttons on Genius NewNet 3D */
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-		input_report_key(dev, BTN_SIDE,  BIT(6));
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-		input_report_key(dev, BTN_EXTRA, BIT(7));
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+		input_report_key(dev, BTN_SIDE,  packet[0] & BIT(6));
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+		input_report_key(dev, BTN_EXTRA, packet[0] & BIT(7));
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 		break;
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 	case PSMOUSE_THINKPS:
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 		/* Extra button on ThinkingMouse */
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-		input_report_key(dev, BTN_EXTRA, BIT(3));
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+		input_report_key(dev, BTN_EXTRA, packet[0] & BIT(3));
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 		/*
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 		 * Without this bit of weirdness moving up gives wildly
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@@ -206,7 +206,7 @@ psmouse_ret_t psmouse_process_byte(struc
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 		 * Cortron PS2 Trackball reports SIDE button in the
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 		 * 4th bit of the first byte.
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 		 */
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-		input_report_key(dev, BTN_SIDE, BIT(3));
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+		input_report_key(dev, BTN_SIDE, packet[0] & BIT(3));
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 		packet[0] |= BIT(3);
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 		break;
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