tree: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git staging-testing head: ecbc62fd441210e54e25fa9683422bbc0143049d commit: ecbc62fd441210e54e25fa9683422bbc0143049d [190/190] staging: vc04_services: add CONFIG_COMPILE_TEST ability config: ia64-allmodconfig (attached as .config) compiler: ia64-linux-gcc (GCC) 6.2.0 reproduce: wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout ecbc62fd441210e54e25fa9683422bbc0143049d # save the attached .config to linux build tree make.cross ARCH=ia64 All warnings (new ones prefixed by >>): In file included from arch/ia64/include/asm/bug.h:12:0, from include/linux/bug.h:4, from include/linux/thread_info.h:11, from include/asm-generic/preempt.h:4, from ./arch/ia64/include/generated/asm/preempt.h:1, from include/linux/preempt.h:59, from include/linux/interrupt.h:8, from drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c:37: drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c: In function 'vchiq_platform_init': drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c:121:11: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] WARN_ON(((int)slot_mem & (PAGE_SIZE - 1)) != 0); ^ include/asm-generic/bug.h:92:25: note: in definition of macro 'WARN_ON' int __ret_warn_on = !!(condition); \ ^~~~~~~~~ In file included from drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.h:42:0, from drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c:55: drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c:175:3: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] (unsigned int)vchiq_slot_zero, &slot_phys); ^ drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.h:67:39: note: in definition of macro 'vchiq_log_info' printk(VCHIQ_LOG_PREFIX fmt "\n", ##__VA_ARGS__); } while (0) ^~~~~~~~~~~ >> drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c:95:23: warning: unused variable 'fw' [-Wunused-variable] struct rpi_firmware *fw = platform_get_drvdata(pdev); ^~ drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c: In function 'vchiq_copy_from_user': drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c:222:6: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] if ((uint32_t)src < TASK_SIZE) { ^ drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c: In function 'create_pagelist': drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c:375:11: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] offset = (unsigned int)buf & (PAGE_SIZE - 1); ^ In file included from drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.h:42:0, from drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c:55: drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c:390:27: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] "create_pagelist - %x", (unsigned int)pagelist); ^ drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.h:72:39: note: in definition of macro 'vchiq_log_trace' printk(VCHIQ_LOG_PREFIX fmt "\n", ##__VA_ARGS__); } while (0) ^~~~~~~~~~~ >> drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c:413:35: warning: value computed is not used [-Wunused-value] dmac_map_area(page_address(pg) + off, bytes, dir); >> drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c:413:40: warning: right-hand operand of comma expression has no effect [-Wunused-value] dmac_map_area(page_address(pg) + off, bytes, dir); ^ drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c:413:47: warning: right-hand operand of comma expression has no effect [-Wunused-value] dmac_map_area(page_address(pg) + off, bytes, dir); ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~^~~~~~ In file included from drivers/staging/vc04_services/interface/vchiq_arm/vchiq_arm.h:42:0, from drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c:55: drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c: In function 'free_pagelist': drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c:515:29: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] "free_pagelist - %x, %d", (unsigned int)pagelist, actual); ^ drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.h:72:39: note: in definition of macro 'vchiq_log_trace' printk(VCHIQ_LOG_PREFIX fmt "\n", ##__VA_ARGS__); } while (0) ^~~~~~~~~~~ drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c:572:38: warning: value computed is not used [-Wunused-value] dmac_unmap_area(page_address(pg) + offset, drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c:572:46: warning: right-hand operand of comma expression has no effect [-Wunused-value] dmac_unmap_area(page_address(pg) + offset, ^ drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c:573:12: warning: right-hand operand of comma expression has no effect [-Wunused-value] dmac_unmap_area(page_address(pg) + offset, ~~~~~~~~~~~~~~~~~~~~~~~~~~~ bytes, DMA_FROM_DEVICE); ~~~~~^~~~~~~~~~~~~~~~~~ vim +/fw +95 drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c 71bad7f0 popcornmix 2013-07-02 49 #define dmac_unmap_area __glue(_CACHE,_dma_unmap_area) 71bad7f0 popcornmix 2013-07-02 50 71bad7f0 popcornmix 2013-07-02 51 #define TOTAL_SLOTS (VCHIQ_SLOT_ZERO_SLOTS + 2 * 32) 71bad7f0 popcornmix 2013-07-02 52 71bad7f0 popcornmix 2013-07-02 53 #define VCHIQ_ARM_ADDRESS(x) ((void *)((char *)x + g_virt_to_bus_offset)) 71bad7f0 popcornmix 2013-07-02 54 71bad7f0 popcornmix 2013-07-02 @55 #include "vchiq_arm.h" 71bad7f0 popcornmix 2013-07-02 56 #include "vchiq_2835.h" 71bad7f0 popcornmix 2013-07-02 57 #include "vchiq_connected.h" 71bad7f0 popcornmix 2013-07-02 58 #include "vchiq_killable.h" 71bad7f0 popcornmix 2013-07-02 59 71bad7f0 popcornmix 2013-07-02 60 #define MAX_FRAGMENTS (VCHIQ_NUM_CURRENT_BULKS * 2) 71bad7f0 popcornmix 2013-07-02 61 71bad7f0 popcornmix 2013-07-02 62 #define BELL0 0x00 71bad7f0 popcornmix 2013-07-02 63 #define BELL2 0x08 71bad7f0 popcornmix 2013-07-02 64 71bad7f0 popcornmix 2013-07-02 65 typedef struct vchiq_2835_state_struct { 71bad7f0 popcornmix 2013-07-02 66 int inited; 71bad7f0 popcornmix 2013-07-02 67 VCHIQ_ARM_STATE_T arm_state; 71bad7f0 popcornmix 2013-07-02 68 } VCHIQ_2835_ARM_STATE_T; 71bad7f0 popcornmix 2013-07-02 69 71bad7f0 popcornmix 2013-07-02 70 static void __iomem *g_regs; 71bad7f0 popcornmix 2013-07-02 71 static unsigned int g_cache_line_size = sizeof(CACHE_LINE_SIZE); 71bad7f0 popcornmix 2013-07-02 72 static unsigned int g_fragments_size; 71bad7f0 popcornmix 2013-07-02 73 static char *g_fragments_base; 71bad7f0 popcornmix 2013-07-02 74 static char *g_free_fragments; 71bad7f0 popcornmix 2013-07-02 75 static struct semaphore g_free_fragments_sema; 71bad7f0 popcornmix 2013-07-02 76 static unsigned long g_virt_to_bus_offset; 71bad7f0 popcornmix 2013-07-02 77 71bad7f0 popcornmix 2013-07-02 78 extern int vchiq_arm_log_level; 71bad7f0 popcornmix 2013-07-02 79 71bad7f0 popcornmix 2013-07-02 80 static DEFINE_SEMAPHORE(g_free_fragments_mutex); 71bad7f0 popcornmix 2013-07-02 81 71bad7f0 popcornmix 2013-07-02 82 static irqreturn_t 71bad7f0 popcornmix 2013-07-02 83 vchiq_doorbell_irq(int irq, void *dev_id); 71bad7f0 popcornmix 2013-07-02 84 71bad7f0 popcornmix 2013-07-02 85 static int 71bad7f0 popcornmix 2013-07-02 86 create_pagelist(char __user *buf, size_t count, unsigned short type, 71bad7f0 popcornmix 2013-07-02 87 struct task_struct *task, PAGELIST_T ** ppagelist); 71bad7f0 popcornmix 2013-07-02 88 71bad7f0 popcornmix 2013-07-02 89 static void 71bad7f0 popcornmix 2013-07-02 90 free_pagelist(PAGELIST_T *pagelist, int actual); 71bad7f0 popcornmix 2013-07-02 91 71bad7f0 popcornmix 2013-07-02 92 int vchiq_platform_init(struct platform_device *pdev, VCHIQ_STATE_T *state) 71bad7f0 popcornmix 2013-07-02 93 { 71bad7f0 popcornmix 2013-07-02 94 struct device *dev = &pdev->dev; 71bad7f0 popcornmix 2013-07-02 @95 struct rpi_firmware *fw = platform_get_drvdata(pdev); 71bad7f0 popcornmix 2013-07-02 96 VCHIQ_SLOT_ZERO_T *vchiq_slot_zero; 71bad7f0 popcornmix 2013-07-02 97 struct resource *res; 71bad7f0 popcornmix 2013-07-02 98 void *slot_mem; :::::: The code at line 95 was first introduced by commit :::::: 71bad7f086419dc674244b91ca35a12bfa4cb597 staging: add bcm2708 vchiq driver :::::: TO: popcornmix <popcornmix@xxxxxxxxx> :::::: CC: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
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