tree: git://anongit.freedesktop.org/drm/drm-tip drm-tip head: 093a2914c367de18bbf8d07d0b15ce63c43e5f9e commit: 4e0795386a907989f92082c9f1af3c70dec46969 [4/8] Merge remote-tracking branch 'drm-misc/drm-misc-next' into drm-tip config: sparc64-allyesconfig (attached as .config) compiler: sparc64-linux-gnu-gcc (Debian 7.2.0-11) 7.2.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout 4e0795386a907989f92082c9f1af3c70dec46969 # save the attached .config to linux build tree GCC_VERSION=7.2.0 make.cross ARCH=sparc64

All warnings (new ones prefixed by >>):

In file included from include/linux/kernel.h:7:0, from include/asm-generic/bug.h:18, from arch/sparc/include/asm/bug.h:25, from include/linux/bug.h:5, from include/linux/mmdebug.h:5, from include/linux/gfp.h:5, from include/linux/slab.h:15, from drivers/gpu/drm/lima/lima_ctx.c:4: drivers/gpu/drm/lima/lima_ctx.c: In function 'lima_ctx_create': include/linux/limits.h:13:18: warning: passing argument 3 of 'xa_alloc' makes pointer from integer without a cast [-Wint-conversion] #define UINT_MAX (~0U) ^

...

drivers/gpu/drm/lima/lima_ctx.c:26:36: note: in expansion of macro 'UINT_MAX'

err = xa_alloc(&mgr->handles, id, UINT_MAX, ctx, GFP_KERNEL); ^~~~~~~~ In file included from include/linux/radix-tree.h:31:0, from include/linux/idr.h:15, from include/drm/drm_device.h:7, from drivers/gpu/drm/lima/lima_device.h:7, from drivers/gpu/drm/lima/lima_ctx.c:6: include/linux/xarray.h:816:32: note: expected 'void *' but argument is of type 'unsigned int' static inline __must_check int xa_alloc(struct xarray *xa, u32 *id, ^~~~~~~~ drivers/gpu/drm/lima/lima_ctx.c:26:46: error: incompatible type for argument 4 of 'xa_alloc' err = xa_alloc(&mgr->handles, id, UINT_MAX, ctx, GFP_KERNEL); ^~~ In file included from include/linux/radix-tree.h:31:0, from include/linux/idr.h:15, from include/drm/drm_device.h:7, from drivers/gpu/drm/lima/lima_device.h:7, from drivers/gpu/drm/lima/lima_ctx.c:6: include/linux/xarray.h:816:32: note: expected 'struct xa_limit' but argument is of type 'struct lima_ctx *' static inline __must_check int xa_alloc(struct xarray *xa, u32 *id, ^~~~~~~~

vim +/UINT_MAX +26 drivers/gpu/drm/lima/lima_ctx.c

a1d2a633 Qiang Yu 2019-03-09 3 a1d2a633 Qiang Yu 2019-03-09 @4 #include <linux/slab.h> a1d2a633 Qiang Yu 2019-03-09 5 a1d2a633 Qiang Yu 2019-03-09 6 #include "lima_device.h" a1d2a633 Qiang Yu 2019-03-09 7 #include "lima_ctx.h" a1d2a633 Qiang Yu 2019-03-09 8 a1d2a633 Qiang Yu 2019-03-09 9 int lima_ctx_create(struct lima_device *dev, struct lima_ctx_mgr *mgr, u32 *id) a1d2a633 Qiang Yu 2019-03-09 10 { a1d2a633 Qiang Yu 2019-03-09 11 struct lima_ctx *ctx; a1d2a633 Qiang Yu 2019-03-09 12 int i, err; a1d2a633 Qiang Yu 2019-03-09 13 a1d2a633 Qiang Yu 2019-03-09 14 ctx = kzalloc(sizeof(*ctx), GFP_KERNEL); a1d2a633 Qiang Yu 2019-03-09 15 if (!ctx) a1d2a633 Qiang Yu 2019-03-09 16 return -ENOMEM; a1d2a633 Qiang Yu 2019-03-09 17 ctx->dev = dev; a1d2a633 Qiang Yu 2019-03-09 18 kref_init(&ctx->refcnt); a1d2a633 Qiang Yu 2019-03-09 19 a1d2a633 Qiang Yu 2019-03-09 20 for (i = 0; i < lima_pipe_num; i++) { a1d2a633 Qiang Yu 2019-03-09 21 err = lima_sched_context_init(dev->pipe + i, ctx->context + i, &ctx->guilty); a1d2a633 Qiang Yu 2019-03-09 22 if (err) a1d2a633 Qiang Yu 2019-03-09 23 goto err_out0; a1d2a633 Qiang Yu 2019-03-09 24 } a1d2a633 Qiang Yu 2019-03-09 25 a1d2a633 Qiang Yu 2019-03-09 @26 err = xa_alloc(&mgr->handles, id, UINT_MAX, ctx, GFP_KERNEL); a1d2a633 Qiang Yu 2019-03-09 27 if (err < 0) a1d2a633 Qiang Yu 2019-03-09 28 goto err_out0; a1d2a633 Qiang Yu 2019-03-09 29 a1d2a633 Qiang Yu 2019-03-09 30 return 0; a1d2a633 Qiang Yu 2019-03-09 31 a1d2a633 Qiang Yu 2019-03-09 32 err_out0: a1d2a633 Qiang Yu 2019-03-09 33 for (i--; i >= 0; i--) a1d2a633 Qiang Yu 2019-03-09 34 lima_sched_context_fini(dev->pipe + i, ctx->context + i); a1d2a633 Qiang Yu 2019-03-09 35 kfree(ctx); a1d2a633 Qiang Yu 2019-03-09 36 return err; a1d2a633 Qiang Yu 2019-03-09 37 } a1d2a633 Qiang Yu 2019-03-09 38

:::::: The code at line 26 was first introduced by commit :::::: a1d2a6339961efc078208dc3b2f006e9e9a8e119 drm/lima: driver for ARM Mali4xx GPUs

:::::: TO: Qiang Yu yuq825@gmail.com :::::: CC: Eric Anholt eric@anholt.net

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