linux-kernel - [PATCH v4 06/16] drm/i915/dsi: Replace while(1) with one with clear exit condition

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Date:   Fri,  3 Nov 2023 22:18:21 +0200
From:   Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
To:     Jani Nikula <jani.nikula@...el.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        intel-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org
Cc:     Jani Nikula <jani.nikula@...ux.intel.com>,
        Joonas Lahtinen <joonas.lahtinen@...ux.intel.com>,
        Rodrigo Vivi <rodrigo.vivi@...el.com>,
        Tvrtko Ursulin <tvrtko.ursulin@...ux.intel.com>,
        David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Hans de Goede <hdegoede@...hat.com>,
        Andi Shyti <andi.shyti@...ux.intel.com>
Subject: [PATCH v4 06/16] drm/i915/dsi: Replace while(1) with one with clear exit condition

Move existing condition to while(), so it will be clear on what
circumstances the loop is successfully finishing.

Reviewed-by: Andi Shyti <andi.shyti@...ux.intel.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Acked-by: Jani Nikula <jani.nikula@...el.com>
---
 drivers/gpu/drm/i915/display/intel_dsi_vbt.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_dsi_vbt.c b/drivers/gpu/drm/i915/display/intel_dsi_vbt.c
index 4af43cf3cee0..290a112f1b63 100644
--- a/drivers/gpu/drm/i915/display/intel_dsi_vbt.c
+++ b/drivers/gpu/drm/i915/display/intel_dsi_vbt.c
@@ -702,13 +702,10 @@ static void intel_dsi_vbt_exec(struct intel_dsi *intel_dsi,
 	if (connector->panel.vbt.dsi.seq_version >= 3)
 		data += 4;
 
-	while (1) {
+	while (*data != MIPI_SEQ_ELEM_END) {
 		u8 operation_byte = *data++;
 		u8 operation_size = 0;
 
-		if (operation_byte == MIPI_SEQ_ELEM_END)
-			break;
-
 		if (operation_byte < ARRAY_SIZE(exec_elem))
 			mipi_elem_exec = exec_elem[operation_byte];
 		else
-- 
2.40.0.1.gaa8946217a0b