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Date: Sat, 25 Nov 2023 10:09:33 +0300
From: Dan Carpenter <dan.carpenter@...aro.org>
To: oe-kbuild@...ts.linux.dev,
Ekansh Gupta <quic_ekangupt@...cinc.com>,
srinivas.kandagatla@...aro.org, linux-arm-msm@...r.kernel.org
Cc: lkp@...el.com, oe-kbuild-all@...ts.linux.dev,
gregkh@...uxfoundation.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v7 5/5] misc: fastrpc: Add support to allocate shared
context bank
Hi Ekansh,
kernel test robot noticed the following build warnings:
https://git-scm.com/docs/git-format-patch#_base_tree_information]
url: https://github.com/intel-lab-lkp/linux/commits/Ekansh-Gupta/misc-fastrpc-Add-fastrpc-multimode-invoke-request-support/20231121-175147
base: linus/master
patch link: https://lore.kernel.org/r/20231121094844.5764-6-quic_ekangupt%40quicinc.com
patch subject: [PATCH v7 5/5] misc: fastrpc: Add support to allocate shared context bank
config: arm-randconfig-r081-20231123 (https://download.01.org/0day-ci/archive/20231125/202311250922.W9tgrGT9-lkp@intel.com/config)
compiler: arm-linux-gnueabi-gcc (GCC) 13.2.0
reproduce: (https://download.01.org/0day-ci/archive/20231125/202311250922.W9tgrGT9-lkp@intel.com/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@...el.com>
| Reported-by: Dan Carpenter <error27@...il.com>
| Closes: https://lore.kernel.org/r/202311250922.W9tgrGT9-lkp@intel.com/
New smatch warnings:
drivers/misc/fastrpc.c:1621 fastrpc_init_create_process() warn: missing unwind goto?
vim +1621 drivers/misc/fastrpc.c
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1576 static int fastrpc_init_create_process(struct fastrpc_user *fl,
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1577 char __user *argp)
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1578 {
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1579 struct fastrpc_init_create init;
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1580 struct fastrpc_invoke_args *args;
becdceed7669e5 Ekansh Gupta 2023-11-21 1581 struct fastrpc_enhanced_invoke ioctl;
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1582 struct fastrpc_phy_page pages[1];
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1583 struct fastrpc_map *map = NULL;
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1584 struct fastrpc_buf *imem = NULL;
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1585 int memlen;
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1586 int err;
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1587 struct {
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1588 int pgid;
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1589 u32 namelen;
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1590 u32 filelen;
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1591 u32 pageslen;
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1592 u32 attrs;
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1593 u32 siglen;
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1594 } inbuf;
7f1f481263c3ce Jeya R 2022-02-14 1595 bool unsigned_module = false;
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1596
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1597 args = kcalloc(FASTRPC_CREATE_PROCESS_NARGS, sizeof(*args), GFP_KERNEL);
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1598 if (!args)
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1599 return -ENOMEM;
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1600
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1601 if (copy_from_user(&init, argp, sizeof(init))) {
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1602 err = -EFAULT;
b49f6d83e290f1 Thierry Escande 2019-03-07 1603 goto err;
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1604 }
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1605
7f1f481263c3ce Jeya R 2022-02-14 1606 if (init.attrs & FASTRPC_MODE_UNSIGNED_MODULE)
7f1f481263c3ce Jeya R 2022-02-14 1607 unsigned_module = true;
7f1f481263c3ce Jeya R 2022-02-14 1608
7f1f481263c3ce Jeya R 2022-02-14 1609 if (is_session_rejected(fl, unsigned_module)) {
7f1f481263c3ce Jeya R 2022-02-14 1610 err = -ECONNREFUSED;
7f1f481263c3ce Jeya R 2022-02-14 1611 goto err;
7f1f481263c3ce Jeya R 2022-02-14 1612 }
7f1f481263c3ce Jeya R 2022-02-14 1613
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1614 if (init.filelen > INIT_FILELEN_MAX) {
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1615 err = -EINVAL;
b49f6d83e290f1 Thierry Escande 2019-03-07 1616 goto err;
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1617 }
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1618
92fe4bcba19c31 Ekansh Gupta 2023-11-21 1619 fl->sctx = fastrpc_session_alloc(fl->cctx, fl->sharedcb);
92fe4bcba19c31 Ekansh Gupta 2023-11-21 1620 if (!fl->sctx)
92fe4bcba19c31 Ekansh Gupta 2023-11-21 @1621 return -EBUSY;
Should be "ret = -EBUSY; goto err;".
92fe4bcba19c31 Ekansh Gupta 2023-11-21 1622
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1623 inbuf.pgid = fl->tgid;
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1624 inbuf.namelen = strlen(current->comm) + 1;
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1625 inbuf.filelen = init.filelen;
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1626 inbuf.pageslen = 1;
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1627 inbuf.attrs = init.attrs;
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1628 inbuf.siglen = init.siglen;
84195d206e1fbd Jonathan Marek 2020-09-08 1629 fl->pd = USER_PD;
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1630
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1631 if (init.filelen && init.filefd) {
e90d911906196b Vamsi Krishna Gattupalli 2022-02-14 1632 err = fastrpc_map_create(fl, init.filefd, init.filelen, 0, &map);
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1633 if (err)
b49f6d83e290f1 Thierry Escande 2019-03-07 1634 goto err;
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1635 }
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1636
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1637 memlen = ALIGN(max(INIT_FILELEN_MAX, (int)init.filelen * 4),
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1638 1024 * 1024);
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1639 err = fastrpc_buf_alloc(fl, fl->sctx->dev, memlen,
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1640 &imem);
b49f6d83e290f1 Thierry Escande 2019-03-07 1641 if (err)
b49f6d83e290f1 Thierry Escande 2019-03-07 1642 goto err_alloc;
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1643
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1644 fl->init_mem = imem;
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1645 args[0].ptr = (u64)(uintptr_t)&inbuf;
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1646 args[0].length = sizeof(inbuf);
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1647 args[0].fd = -1;
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1648
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1649 args[1].ptr = (u64)(uintptr_t)current->comm;
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1650 args[1].length = inbuf.namelen;
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1651 args[1].fd = -1;
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1652
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1653 args[2].ptr = (u64) init.file;
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1654 args[2].length = inbuf.filelen;
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1655 args[2].fd = init.filefd;
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1656
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1657 pages[0].addr = imem->phys;
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1658 pages[0].size = imem->size;
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1659
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1660 args[3].ptr = (u64)(uintptr_t) pages;
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1661 args[3].length = 1 * sizeof(*pages);
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1662 args[3].fd = -1;
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1663
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1664 args[4].ptr = (u64)(uintptr_t)&inbuf.attrs;
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1665 args[4].length = sizeof(inbuf.attrs);
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1666 args[4].fd = -1;
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1667
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1668 args[5].ptr = (u64)(uintptr_t) &inbuf.siglen;
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1669 args[5].length = sizeof(inbuf.siglen);
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1670 args[5].fd = -1;
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1671
becdceed7669e5 Ekansh Gupta 2023-11-21 1672 ioctl.inv.handle = FASTRPC_INIT_HANDLE;
becdceed7669e5 Ekansh Gupta 2023-11-21 1673 ioctl.inv.sc = FASTRPC_SCALARS(FASTRPC_RMID_INIT_CREATE, 4, 0);
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1674 if (init.attrs)
becdceed7669e5 Ekansh Gupta 2023-11-21 1675 ioctl.inv.sc = FASTRPC_SCALARS(FASTRPC_RMID_INIT_CREATE_ATTR, 4, 0);
e27748f5c08306 Ekansh Gupta 2023-11-21 1676 ioctl.inv.args = (u64)args;
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1677
becdceed7669e5 Ekansh Gupta 2023-11-21 1678 err = fastrpc_internal_invoke(fl, true, &ioctl);
b49f6d83e290f1 Thierry Escande 2019-03-07 1679 if (err)
b49f6d83e290f1 Thierry Escande 2019-03-07 1680 goto err_invoke;
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1681
b49f6d83e290f1 Thierry Escande 2019-03-07 1682 kfree(args);
b49f6d83e290f1 Thierry Escande 2019-03-07 1683
b49f6d83e290f1 Thierry Escande 2019-03-07 1684 return 0;
b49f6d83e290f1 Thierry Escande 2019-03-07 1685
b49f6d83e290f1 Thierry Escande 2019-03-07 1686 err_invoke:
b49f6d83e290f1 Thierry Escande 2019-03-07 1687 fl->init_mem = NULL;
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1688 fastrpc_buf_free(imem);
b49f6d83e290f1 Thierry Escande 2019-03-07 1689 err_alloc:
b49f6d83e290f1 Thierry Escande 2019-03-07 1690 fastrpc_map_put(map);
b49f6d83e290f1 Thierry Escande 2019-03-07 1691 err:
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1692 kfree(args);
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1693
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1694 return err;
d73f71c7c6ee15 Srinivas Kandagatla 2019-02-08 1695 }
--
0-DAY CI Kernel Test Service
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