linux-kernel - [PATCH] drm/i915/pxp: use correct format string for size

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Message-Id: <20230601213624.3510244-1-arnd@kernel.org>
Date:   Thu,  1 Jun 2023 23:36:10 +0200
From:   Arnd Bergmann <arnd@...nel.org>
To:     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>
Cc:     Arnd Bergmann <arnd@...db.de>, David Airlie <airlied@...il.com>,
        Daniel Vetter <daniel@...ll.ch>,
        Daniele Ceraolo Spurio <daniele.ceraolospurio@...el.com>,
        Radhakrishna Sripada <radhakrishna.sripada@...el.com>,
        Alan Previn <alan.previn.teres.alexis@...el.com>,
        intel-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH] drm/i915/pxp: use correct format string for size_t

From: Arnd Bergmann <arnd@...db.de>

While 'unsigned long' needs the %ld format string, size_t needs the %z
modifier:

drivers/gpu/drm/i915/pxp/intel_pxp_gsccs.c: In function 'gsccs_send_message':
include/drm/drm_print.h:456:39: error: format '%ld' expects argument of type 'long int', but argument 4 has type 'size_t' {aka 'unsigned int'} [-Werror=format=]
  456 |         dev_##level##type((drm)->dev, "[drm] " fmt, ##__VA_ARGS__)

Fixes: dc9ac125d81fa ("drm/i915/pxp: Add GSC-CS backend to send GSC fw messages")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 drivers/gpu/drm/i915/pxp/intel_pxp_gsccs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/pxp/intel_pxp_gsccs.c b/drivers/gpu/drm/i915/pxp/intel_pxp_gsccs.c
index 8dc41de3f6f74..290ed5ac487de 100644
--- a/drivers/gpu/drm/i915/pxp/intel_pxp_gsccs.c
+++ b/drivers/gpu/drm/i915/pxp/intel_pxp_gsccs.c
@@ -143,7 +143,7 @@ gsccs_send_message(struct intel_pxp *pxp,
 
 	reply_size = header->message_size - sizeof(*header);
 	if (reply_size > msg_out_size_max) {
-		drm_warn(&i915->drm, "caller with insufficient PXP reply size %u (%ld)\n",
+		drm_warn(&i915->drm, "caller with insufficient PXP reply size %u (%zd)\n",
 			 reply_size, msg_out_size_max);
 		reply_size = msg_out_size_max;
 	}
-- 
2.39.2