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Tue, 01 Sep 2026 23:30:03 -0700 (PDT) Message-ID: <12d3f4cc-e3c3-4f2a-a791-724271473fb9@suse.com> Date: Wed, 2 Sep 2026 08:30:02 +0200 MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: [PATCH 01/14] lib: obey to Misra rule 11.8 where possible 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?= 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-c201ff/1788330604-F7ABF2A1-2BB4FCD4/0/0 X-purgate-type: clean X-purgate-size: 2637 Casting away const-ness (or volatile-ness) is never a good idea, but some library functions (e.g. strchr()) require doing so. Where not required, remove / replace respective casts. While there convert touched functions to Xen style. No functional change intended. Signed-off-by: Jan Beulich --- a/xen/lib/memcpy.c +++ b/xen/lib/memcpy.c @@ -15,12 +15,13 @@ */ void *(memcpy)(void *dest, const void *src, size_t n) { - char *tmp = (char *) dest, *s = (char *) src; + char *tmp = dest; + const char *s = src; - while (n--) - *tmp++ = *s++; + while ( n-- ) + *tmp++ = *s++; - return dest; + return dest; } /* --- a/xen/lib/memmove.c +++ b/xen/lib/memmove.c @@ -14,21 +14,25 @@ */ void *(memmove)(void *dest, const void *src, size_t n) { - char *tmp, *s; + char *tmp; + const char *s; - if (dest <= src) { - tmp = (char *) dest; - s = (char *) src; - while (n--) - *tmp++ = *s++; - } else { - tmp = (char *) dest + n; - s = (char *) src + n; - while (n--) - *--tmp = *--s; - } + if ( dest <= src ) + { + tmp = dest; + s = src; + while ( n-- ) + *tmp++ = *s++; + } + else + { + tmp = dest + n; + s = src + n; + while ( n-- ) + *--tmp = *--s; + } - return dest; + return dest; } /* --- a/xen/lib/strcmp.c +++ b/xen/lib/strcmp.c @@ -11,16 +11,15 @@ */ int (strcmp)(const char *cs, const char *ct) { - unsigned char *csu = (unsigned char *)cs; - unsigned char *ctu = (unsigned char *)ct; - int res; + const unsigned char *csu = (const void *)cs; + const unsigned char *ctu = (const void *)ct; + int res; - while (1) { - if ((res = *csu - *ctu++) != 0 || !*csu++) - break; - } + for ( ; ; ) + if ( (res = *csu - *ctu++) != 0 || !*csu++ ) + break; - return res; + return res; } /* --- a/xen/lib/strncmp.c +++ b/xen/lib/strncmp.c @@ -12,17 +12,18 @@ */ int (strncmp)(const char *cs, const char *ct, size_t count) { - unsigned char *csu = (unsigned char *)cs; - unsigned char *ctu = (unsigned char *)ct; - int res = 0; + const unsigned char *csu = (const void *)cs; + const unsigned char *ctu = (const void *)ct; + int res = 0; - while (count) { - if ((res = *csu - *ctu++) != 0 || !*csu++) - break; - count--; - } + while ( count ) + { + if ( (res = *csu - *ctu++) != 0 || !*csu++ ) + break; + count--; + } - return res; + return res; } /*