Re: [PATCH v3 6/7] misc: bcm-vk: add Broadcom VK driver
From: kbuild test robot
Date: Wed Apr 22 2020 - 07:18:23 EST
Hi Scott,
I love your patch! Perhaps something to improve:
[auto build test WARNING on driver-core/driver-core-testing]
[also build test WARNING on next-20200421]
[cannot apply to char-misc/char-misc-testing kselftest/next linus/master v5.7-rc2]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]
url: https://github.com/0day-ci/linux/commits/Scott-Branden/firmware-add-partial-read-support-in-request_firmware_into_buf/20200422-114528
base: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core.git 55623260bb33e2ab849af76edf2253bc04cb241f
reproduce:
# apt-get install sparse
# sparse version: v0.6.1-191-gc51a0382-dirty
make ARCH=x86_64 allmodconfig
make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__'
If you fix the issue, kindly add following tag as appropriate
Reported-by: kbuild test robot <lkp@xxxxxxxxx>
sparse warnings: (new ones prefixed by >>)
>> drivers/misc/bcm-vk/bcm_vk_dev.c:189:15: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected struct bcm_vk_peer_log *p_ctl @@ got struct bcm_vk_peer_log *p_ctl @@
>> drivers/misc/bcm-vk/bcm_vk_dev.c:189:15: sparse: expected struct bcm_vk_peer_log *p_ctl
>> drivers/misc/bcm-vk/bcm_vk_dev.c:189:15: sparse: got void [noderef] <asn:2> *
>> drivers/misc/bcm-vk/bcm_vk_dev.c:685:36: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void const [noderef] <asn:1> *from @@ got oderef] <asn:1> *from @@
>> drivers/misc/bcm-vk/bcm_vk_dev.c:685:36: sparse: expected void const [noderef] <asn:1> *from
>> drivers/misc/bcm-vk/bcm_vk_dev.c:685:36: sparse: got struct vk_image *arg
drivers/misc/bcm-vk/bcm_vk_dev.c:780:36: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected void const [noderef] <asn:1> *from @@ got oderef] <asn:1> *from @@
drivers/misc/bcm-vk/bcm_vk_dev.c:780:36: sparse: expected void const [noderef] <asn:1> *from
>> drivers/misc/bcm-vk/bcm_vk_dev.c:780:36: sparse: got struct vk_reset *arg
>> drivers/misc/bcm-vk/bcm_vk_dev.c:858:45: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected struct vk_image *arg @@ got void [nstruct vk_image *arg @@
>> drivers/misc/bcm-vk/bcm_vk_dev.c:858:45: sparse: expected struct vk_image *arg
>> drivers/misc/bcm-vk/bcm_vk_dev.c:858:45: sparse: got void [noderef] <asn:1> *argp
>> drivers/misc/bcm-vk/bcm_vk_dev.c:862:40: sparse: sparse: incorrect type in argument 2 (different address spaces) @@ expected struct vk_reset *arg @@ got void [nstruct vk_reset *arg @@
>> drivers/misc/bcm-vk/bcm_vk_dev.c:862:40: sparse: expected struct vk_reset *arg
drivers/misc/bcm-vk/bcm_vk_dev.c:862:40: sparse: got void [noderef] <asn:1> *argp
--
>> drivers/misc/bcm-vk/bcm_vk_msg.c:507:17: sparse: sparse: cast removes address space '<asn:2>' of expression
drivers/misc/bcm-vk/bcm_vk_msg.c:707:15: sparse: sparse: cast removes address space '<asn:2>' of expression
drivers/misc/bcm-vk/bcm_vk_msg.c:715:23: sparse: sparse: cast removes address space '<asn:2>' of expression
drivers/misc/bcm-vk/bcm_vk_msg.c:871:31: sparse: sparse: cast removes address space '<asn:2>' of expression
drivers/misc/bcm-vk/bcm_vk_msg.c:899:47: sparse: sparse: cast removes address space '<asn:2>' of expression
vim +189 drivers/misc/bcm-vk/bcm_vk_dev.c
180
181 static void bcm_vk_dump_peer_log(struct bcm_vk *vk)
182 {
183 struct bcm_vk_peer_log log, *p_ctl;
184 char loc_buf[BCM_VK_PEER_LOG_LINE_MAX];
185 int cnt;
186 struct device *dev = &vk->pdev->dev;
187 uint data_offset;
188
> 189 p_ctl = vk->bar[BAR_2] + vk->peerlog_off;
190 log = *p_ctl;
191 /* do a rmb() to make sure log is updated */
192 rmb();
193
194 dev_dbg(dev, "Peer PANIC: Size 0x%x(0x%x), [Rd Wr] = [%d %d]\n",
195 log.buf_size, log.mask, log.rd_idx, log.wr_idx);
196
197 cnt = 0;
198 data_offset = vk->peerlog_off + sizeof(struct bcm_vk_peer_log);
199 while (log.rd_idx != log.wr_idx) {
200 loc_buf[cnt] = vkread8(vk, BAR_2, data_offset + log.rd_idx);
201
202 if ((loc_buf[cnt] == '\0') ||
203 (cnt == (BCM_VK_PEER_LOG_LINE_MAX - 1))) {
204 dev_err(dev, "%s", loc_buf);
205 cnt = 0;
206 } else {
207 cnt++;
208 }
209 log.rd_idx = (log.rd_idx + 1) & log.mask;
210 }
211 /* update rd idx at the end */
212 vkwrite32(vk, log.rd_idx, BAR_2, vk->peerlog_off);
213 }
214
---
0-DAY CI Kernel Test Service, Intel Corporation
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