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Tue, 01 Sep 2026 23:37:27 -0700 (PDT) Message-ID: Date: Wed, 2 Sep 2026 08:37:26 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: [PATCH 14/14] xhci-dbc: don't cast away const-ness in xhci_find_dbc() From: Jan Beulich To: "xen-devel@lists.xenproject.org" Cc: Nicola Vetrini , Andrew Cooper , Julien Grall , Stefano Stabellini , Anthony PERARD , Michal Orzel , =?UTF-8?Q?Roger_Pau_Monn=C3=A9?= , Marek Marczykowski References: <0ff5676d-2ad3-49e3-a94b-90e7c3edb55f@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: <0ff5676d-2ad3-49e3-a94b-90e7c3edb55f@suse.com> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 7bit X-purgate-ID: tlsNG-ef75cf/1788331048-35EC6AE4-BFE21905/0/0 X-purgate-type: clean X-purgate-size: 992 Doing so (at the return statement), besides being a bad idea anyway, is a violation of Misra rule 11.8. Make "xcap" have an initializer while adjusting the code anyway. No functional change intended. Signed-off-by: Jan Beulich --- a/xen/drivers/char/xhci-dbc.c +++ b/xen/drivers/char/xhci-dbc.c @@ -384,16 +384,15 @@ static bool __init dbc_init_xhc(struct d */ static struct dbc_reg __iomem *xhci_find_dbc(struct dbc *dbc) { - const uint32_t __iomem *xcap; uint32_t xcap_val; uint32_t next; uint32_t id = 0; - const void __iomem *mmio = dbc->xhc_mmio; + void __iomem *mmio = dbc->xhc_mmio; const uint32_t __iomem *hccp1 = mmio + 0x10; + uint32_t __iomem *xcap = mmio; const uint32_t DBC_ID = 0xA; int ttl = 48; - xcap = mmio; /* * This is initially an offset to the first capability. All the offsets * (both in HCCP1 and then next capability pointer) are dword-based.