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5/6] radix-tree: introduce RADIX_TREE{,_INIT}() From: Jan Beulich To: "xen-devel@lists.xenproject.org" Cc: Oleksii Kurochko , Andrew Cooper , Julien Grall , Stefano Stabellini , Anthony PERARD , Michal Orzel , =?UTF-8?Q?Roger_Pau_Monn=C3=A9?= References: <30f29dde-15e1-4af9-b86f-0040658c381a@suse.com> Content-Language: en-US Autocrypt: addr=jbeulich@suse.com; keydata= xsDiBFk3nEQRBADAEaSw6zC/EJkiwGPXbWtPxl2xCdSoeepS07jW8UgcHNurfHvUzogEq5xk hu507c3BarVjyWCJOylMNR98Yd8VqD9UfmX0Hb8/BrA+Hl6/DB/eqGptrf4BSRwcZQM32aZK 7Pj2XbGWIUrZrd70x1eAP9QE3P79Y2oLrsCgbZJfEwCgvz9JjGmQqQkRiTVzlZVCJYcyGGsD /0tbFCzD2h20ahe8rC1gbb3K3qk+LpBtvjBu1RY9drYk0NymiGbJWZgab6t1jM7sk2vuf0Py O9Hf9XBmK0uE9IgMaiCpc32XV9oASz6UJebwkX+zF2jG5I1BfnO9g7KlotcA/v5ClMjgo6Gl MDY4HxoSRu3i1cqqSDtVlt+AOVBJBACrZcnHAUSuCXBPy0jOlBhxPqRWv6ND4c9PH1xjQ3NP nxJuMBS8rnNg22uyfAgmBKNLpLgAGVRMZGaGoJObGf72s6TeIqKJo/LtggAS9qAUiuKVnygo 3wjfkS9A3DRO+SpU7JqWdsveeIQyeyEJ/8PTowmSQLakF+3fote9ybzd880fSmFuIEJldWxp Y2ggPGpiZXVsaWNoQHN1c2UuY29tPsJgBBMRAgAgBQJZN5xEAhsDBgsJCAcDAgQVAggDBBYC AwECHgECF4AACgkQoDSui/t3IH4J+wCfQ5jHdEjCRHj23O/5ttg9r9OIruwAn3103WUITZee e7Sbg12UgcQ5lv7SzsFNBFk3nEQQCACCuTjCjFOUdi5Nm244F+78kLghRcin/awv+IrTcIWF hUpSs1Y91iQQ7KItirz5uwCPlwejSJDQJLIS+QtJHaXDXeV6NI0Uef1hP20+y8qydDiVkv6l IreXjTb7DvksRgJNvCkWtYnlS3mYvQ9NzS9PhyALWbXnH6sIJd2O9lKS1Mrfq+y0IXCP10eS FFGg+Av3IQeFatkJAyju0PPthyTqxSI4lZYuJVPknzgaeuJv/2NccrPvmeDg6Coe7ZIeQ8Yj t0ARxu2xytAkkLCel1Lz1WLmwLstV30g80nkgZf/wr+/BXJW/oIvRlonUkxv+IbBM3dX2OV8 AmRv1ySWPTP7AAMFB/9PQK/VtlNUJvg8GXj9ootzrteGfVZVVT4XBJkfwBcpC/XcPzldjv+3 HYudvpdNK3lLujXeA5fLOH+Z/G9WBc5pFVSMocI71I8bT8lIAzreg0WvkWg5V2WZsUMlnDL9 mpwIGFhlbM3gfDMs7MPMu8YQRFVdUvtSpaAs8OFfGQ0ia3LGZcjA6Ik2+xcqscEJzNH+qh8V m5jjp28yZgaqTaRbg3M/+MTbMpicpZuqF4rnB0AQD12/3BNWDR6bmh+EkYSMcEIpQmBM51qM EKYTQGybRCjpnKHGOxG0rfFY1085mBDZCH5Kx0cl0HVJuQKC+dV2ZY5AqjcKwAxpE75MLFkr wkkEGBECAAkFAlk3nEQCGwwACgkQoDSui/t3IH7nnwCfcJWUDUFKdCsBH/E5d+0ZnMQi+G0A nAuWpQkjM1ASeQwSHEeAWPgskBQL In-Reply-To: <30f29dde-15e1-4af9-b86f-0040658c381a@suse.com> Content-Transfer-Encoding: quoted-printable X-ZohoMail-DKIM: pass (identity @suse.com) X-ZM-MESSAGEID: 1738600030349019100 Content-Type: text/plain; charset="utf-8" ... now that static initialization is possible. Use RADIX_TREE() for pci_segments and ivrs_maps. Requested-by: Andrew Cooper Signed-off-by: Jan Beulich --- v2: New. --- a/xen/drivers/passthrough/amd/iommu_init.c +++ b/xen/drivers/passthrough/amd/iommu_init.c @@ -31,7 +31,7 @@ static struct tasklet amd_iommu_irq_task unsigned int __read_mostly amd_iommu_acpi_info; unsigned int __read_mostly ivrs_bdf_entries; u8 __read_mostly ivhd_type; -static struct radix_tree_root ivrs_maps; +static RADIX_TREE(ivrs_maps); LIST_HEAD_RO_AFTER_INIT(amd_iommu_head); bool iommuv2_enabled; =20 @@ -1408,7 +1408,6 @@ int __init amd_iommu_prepare(bool xt) goto error_out; ivrs_bdf_entries =3D rc; =20 - radix_tree_init(&ivrs_maps); for_each_amd_iommu ( iommu ) { rc =3D amd_iommu_prepare_one(iommu); --- a/xen/drivers/passthrough/pci.c +++ b/xen/drivers/passthrough/pci.c @@ -68,7 +68,7 @@ bool pcidevs_locked(void) return rspin_is_locked(&_pcidevs_lock); } =20 -static struct radix_tree_root pci_segments; +static RADIX_TREE(pci_segments); =20 static inline struct pci_seg *get_pseg(u16 seg) { @@ -124,7 +124,6 @@ static int pci_segments_iterate( =20 void __init pci_segments_init(void) { - radix_tree_init(&pci_segments); if ( !alloc_pseg(0) ) panic("Could not initialize PCI segment 0\n"); } --- a/xen/include/xen/radix-tree.h +++ b/xen/include/xen/radix-tree.h @@ -72,6 +72,9 @@ struct radix_tree_root { *** radix-tree API starts here ** */ =20 +#define RADIX_TREE_INIT() {} +#define RADIX_TREE(name) struct radix_tree_root name =3D RADIX_TREE_INIT() + void radix_tree_init(struct radix_tree_root *root); =20 void radix_tree_destroy(