Hi > On 4 Mar 2025, at 7:57 PM, Arnd Bergmann <arnd@xxxxxxxxxx> wrote: > > From: Arnd Bergmann <arnd@xxxxxxxx> > > A size_t must be printed with the %z modifier instead of %l: > > In file included from include/linux/device.h:15, > from include/linux/usb.h:19, > from drivers/gpu/drm/tiny/appletbdrm.c:19: > drivers/gpu/drm/tiny/appletbdrm.c: In function 'appletbdrm_send_request': > include/drm/drm_print.h:589:54: error: format '%lu' expects argument of type 'long unsigned int', but argument 4 has type 'size_t' {aka 'unsigned int'} [-Werror=format=] > drivers/gpu/drm/tiny/appletbdrm.c:170:17: note: in expansion of macro 'drm_err' > 170 | drm_err(drm, "Actual size (%d) doesn't match expected size (%lu)\n", > | ^~~~~~~ > drivers/gpu/drm/tiny/appletbdrm.c: In function 'appletbdrm_read_response': > include/drm/drm_print.h:589:54: error: format '%lu' expects argument of type 'long unsigned int', but argument 4 has type 'size_t' {aka 'unsigned int'} [-Werror=format=] > drivers/gpu/drm/tiny/appletbdrm.c:211:17: note: in expansion of macro 'drm_err' > 211 | drm_err(drm, "Actual size (%d) doesn't match expected size (%lu)\n", > | ^~~~~~~ > > Fixes: 0670c2f56e45 ("drm/tiny: add driver for Apple Touch Bars in x86 Macs") > Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> > — Its the duplicate of: https://lore.kernel.org/dri-devel/20250304-appletbdrm-fix-size_t-specifier-v1-1-94fe1d2c91f8@xxxxxxxxxx/ as well as https://lore.kernel.org/dri-devel/20250304135456.429407-1-jani.nikula@xxxxxxxxx/