Xtensa updates for v5.20
- support KCOV - enable ARCH_HAS_GCOV_PROFILE_ALL - minor ISS network driver cleanups -----BEGIN PGP SIGNATURE----- iQJHBAABCgAxFiEEK2eFS5jlMn3N6xfYUfnMkfg/oEQFAmLsCugTHGpjbXZia2Jj QGdtYWlsLmNvbQAKCRBR+cyR+D+gRI9xD/9R+LcQFYoWXKJv57XAopM3q5QsR8hZ sQNWnErzf+LpUVCZHlniyQkywf6KpILm6lRHTd4qs/ny8B5rjnbWLD2xx8qSZ9lq 6YT5HtimCj6qeU7eQPp4OAf9NNC6bkpYOFF0D5eU+smgS1A2PyZnYGMvXWPwUhtM R+z4+CIB0XHRWazNC7hrJOAmge0rWQgpiDxRQMYCKTQH1o1MZc5F0k9V/OJtVDRt zLiC7fMI6Uijsw9woAU9sfl4zU7FnM0S10gXtL2J/e5DEKovDegHeGrHpXyNBtCG 9xnCXu285XKRlGDXGtO+EnSgmHmPmaIxW4F5I3uK/fCdfex4NdbuLf+WWuK2eSPM KDWLlWq76F9/Fdv4yPQoysUWoEXNjbpsgESITZdatyLZMZtUGE7rM4ysHOxN/VOG cDa1jwY9Od7Mg6HfVO1sm+8ZcY4adsMKfyUVp55H5l6Dvd44o50wF5Eblrq0ouuC zkBlnFdxn5CxyaMFNgaGJuAcdW5BesQdRLhmjh06uAC9WXOSmq1aGjt9IcKjBH+4 Uf/8iiVmQtcUanFokcbNlgByIaJ7Mwik13yMY6cVk7I4+3NoI15OWIF54241gtHb 6glbBkbTOTO3S1l1MasqAUDZjYl2yJxtckoVAREzDmMMlsYqJZ5J8UEmjJNNiqN0 f52eQXMUFZxjuQ== =CLFr -----END PGP SIGNATURE----- Merge tag 'xtensa-20220804' of https://github.com/jcmvbkbc/linux-xtensa Pull xtensa updates from Max Filippov: - support KCOV - enable ARCH_HAS_GCOV_PROFILE_ALL - minor ISS network driver cleanups * tag 'xtensa-20220804' of https://github.com/jcmvbkbc/linux-xtensa: xtensa: enable ARCH_HAS_GCOV_PROFILE_ALL xtensa: enable KCOV support xtensa: iss: fix handling error cases in iss_net_configure() xtensa: iss/network: provide release() callback xtensa: iss/network: drop 'devices' list
This commit is contained in:
Linus Torvalds
commit
c040862bfb
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@ -27,5 +27,5 @@
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| sparc: | TODO |
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| um: | ok |
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| x86: | ok |
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| xtensa: | TODO |
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| xtensa: | ok |
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-----------------------
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@ -27,5 +27,5 @@
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| sparc: | TODO |
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| um: | ok |
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| x86: | ok |
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| xtensa: | TODO |
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| xtensa: | ok |
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-----------------------
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@ -6,6 +6,8 @@ config XTENSA
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select ARCH_HAS_CURRENT_STACK_POINTER
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select ARCH_HAS_DEBUG_VM_PGTABLE
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select ARCH_HAS_DMA_PREP_COHERENT if MMU
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select ARCH_HAS_GCOV_PROFILE_ALL
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select ARCH_HAS_KCOV
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select ARCH_HAS_SYNC_DMA_FOR_CPU if MMU
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select ARCH_HAS_SYNC_DMA_FOR_DEVICE if MMU
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select ARCH_HAS_DMA_SET_UNCACHED if MMU
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@ -17,6 +17,8 @@ endif
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KASAN_SANITIZE := n
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KCSAN_SANITIZE := n
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KCOV_INSTRUMENT := n
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GCOV_PROFILE := n
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CFLAGS_REMOVE_inflate.o += -fstack-protector -fstack-protector-strong
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CFLAGS_REMOVE_zmem.o += -fstack-protector -fstack-protector-strong
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@ -37,10 +37,6 @@
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#define ETH_HEADER_OTHER 14
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#define ISS_NET_TIMER_VALUE (HZ / 10)
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static DEFINE_SPINLOCK(devices_lock);
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static LIST_HEAD(devices);
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/* ------------------------------------------------------------------------- */
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/* We currently only support the TUNTAP transport protocol. */
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@ -70,8 +66,6 @@ struct iss_net_ops {
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/* This structure contains out private information for the driver. */
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struct iss_net_private {
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struct list_head device_list;
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spinlock_t lock;
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struct net_device *dev;
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struct platform_device pdev;
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@ -472,23 +466,30 @@ static const struct net_device_ops iss_netdev_ops = {
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.ndo_set_rx_mode = iss_net_set_multicast_list,
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};
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static int iss_net_configure(int index, char *init)
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static void iss_net_pdev_release(struct device *dev)
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{
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struct platform_device *pdev = to_platform_device(dev);
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struct iss_net_private *lp =
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container_of(pdev, struct iss_net_private, pdev);
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free_netdev(lp->dev);
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}
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static void iss_net_configure(int index, char *init)
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{
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struct net_device *dev;
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struct iss_net_private *lp;
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int err;
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dev = alloc_etherdev(sizeof(*lp));
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if (dev == NULL) {
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pr_err("eth_configure: failed to allocate device\n");
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return 1;
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return;
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}
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/* Initialize private element. */
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lp = netdev_priv(dev);
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*lp = (struct iss_net_private) {
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.device_list = LIST_HEAD_INIT(lp->device_list),
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.dev = dev,
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.index = index,
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};
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@ -509,7 +510,7 @@ static int iss_net_configure(int index, char *init)
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if (!tuntap_probe(lp, index, init)) {
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pr_err("%s: invalid arguments. Skipping device!\n",
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dev->name);
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goto errout;
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goto err_free_netdev;
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}
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pr_info("Netdevice %d (%pM)\n", index, dev->dev_addr);
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@ -517,17 +518,16 @@ static int iss_net_configure(int index, char *init)
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/* sysfs register */
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if (!driver_registered) {
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platform_driver_register(&iss_net_driver);
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if (platform_driver_register(&iss_net_driver))
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goto err_free_netdev;
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driver_registered = 1;
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}
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spin_lock(&devices_lock);
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list_add(&lp->device_list, &devices);
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spin_unlock(&devices_lock);
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lp->pdev.id = index;
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lp->pdev.name = DRIVER_NAME;
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platform_device_register(&lp->pdev);
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lp->pdev.dev.release = iss_net_pdev_release;
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if (platform_device_register(&lp->pdev))
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goto err_free_netdev;
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SET_NETDEV_DEV(dev, &lp->pdev.dev);
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dev->netdev_ops = &iss_netdev_ops;
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@ -536,23 +536,20 @@ static int iss_net_configure(int index, char *init)
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dev->irq = -1;
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rtnl_lock();
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err = register_netdevice(dev);
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if (register_netdevice(dev)) {
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rtnl_unlock();
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if (err) {
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pr_err("%s: error registering net device!\n", dev->name);
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/* XXX: should we call ->remove() here? */
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free_netdev(dev);
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return 1;
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platform_device_unregister(&lp->pdev);
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return;
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}
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rtnl_unlock();
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timer_setup(&lp->tl, iss_net_user_timer_expire, 0);
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return 0;
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return;
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errout:
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/* FIXME: unregister; free, etc.. */
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return -EIO;
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err_free_netdev:
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free_netdev(dev);
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}
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/* ------------------------------------------------------------------------- */
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@ -574,7 +571,7 @@ struct iss_net_init {
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static int __init iss_net_setup(char *str)
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{
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struct iss_net_private *device = NULL;
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struct iss_net_init *device = NULL;
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struct iss_net_init *new;
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struct list_head *ele;
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char *end;
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@ -595,16 +592,12 @@ static int __init iss_net_setup(char *str)
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}
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str = end;
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spin_lock(&devices_lock);
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list_for_each(ele, &devices) {
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device = list_entry(ele, struct iss_net_private, device_list);
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list_for_each(ele, ð_cmd_line) {
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device = list_entry(ele, struct iss_net_init, list);
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if (device->index == n)
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break;
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}
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spin_unlock(&devices_lock);
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if (device && device->index == n) {
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pr_err("Device %u already configured\n", n);
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return 1;
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