From e3ff9f0e57472e6411dc446b41789cbd9e2cf887 Mon Sep 17 00:00:00 2001 From: Juan Quintela Date: Wed, 23 Aug 2017 10:25:26 +0200 Subject: [PATCH 1/2] tests: Use real size for iov tests We were using -1 instead of the real size because the functions check what is bigger, size in bytes or the size of the iov. Recent gcc's barf at this. Signed-off-by: Juan Quintela Reviewed-by: Peter Xu Tested-by: Cleber Rosa -- Remove comments about this feature. Fix missing -1. --- include/qemu/iov.h | 6 ------ tests/test-iov.c | 10 +++++----- 2 files changed, 5 insertions(+), 11 deletions(-) diff --git a/include/qemu/iov.h b/include/qemu/iov.h index bd9fd55b0a..72d4c559b4 100644 --- a/include/qemu/iov.h +++ b/include/qemu/iov.h @@ -31,11 +31,6 @@ size_t iov_size(const struct iovec *iov, const unsigned int iov_cnt); * Number of bytes actually copied will be returned, which is * min(bytes, iov_size(iov)-offset) * `Offset' must point to the inside of iovec. - * It is okay to use very large value for `bytes' since we're - * limited by the size of the iovec anyway, provided that the - * buffer pointed to by buf has enough space. One possible - * such "large" value is -1 (sinice size_t is unsigned), - * so specifying `-1' as `bytes' means 'up to the end of iovec'. */ size_t iov_from_buf_full(const struct iovec *iov, unsigned int iov_cnt, size_t offset, const void *buf, size_t bytes); @@ -76,7 +71,6 @@ iov_to_buf(const struct iovec *iov, const unsigned int iov_cnt, * up to the end of it, will be filled with the specified value. * Function return actual number of bytes processed, which is * min(size, iov_size(iov) - offset). - * Again, it is okay to use large value for `bytes' to mean "up to the end". */ size_t iov_memset(const struct iovec *iov, const unsigned int iov_cnt, size_t offset, int fillc, size_t bytes); diff --git a/tests/test-iov.c b/tests/test-iov.c index fa3d75aee1..458ca25099 100644 --- a/tests/test-iov.c +++ b/tests/test-iov.c @@ -81,17 +81,17 @@ static void test_to_from_buf_1(void) * skip whole vector and process exactly 0 bytes */ /* first set bytes [i..sz) to some "random" value */ - n = iov_memset(iov, niov, 0, 0xff, -1); + n = iov_memset(iov, niov, 0, 0xff, sz); g_assert(n == sz); /* next copy bytes [i..sz) from ibuf to iovec */ - n = iov_from_buf(iov, niov, i, ibuf + i, -1); + n = iov_from_buf(iov, niov, i, ibuf + i, sz - i); g_assert(n == sz - i); /* clear part of obuf */ memset(obuf + i, 0, sz - i); /* and set this part of obuf to values from iovec */ - n = iov_to_buf(iov, niov, i, obuf + i, -1); + n = iov_to_buf(iov, niov, i, obuf + i, sz - i); g_assert(n == sz - i); /* now compare resulting buffers */ @@ -109,7 +109,7 @@ static void test_to_from_buf_1(void) * with j in [i..sz]. */ /* clear iovec */ - n = iov_memset(iov, niov, 0, 0xff, -1); + n = iov_memset(iov, niov, 0, 0xff, sz); g_assert(n == sz); /* copy bytes [i..j) from ibuf to iovec */ @@ -225,7 +225,7 @@ static void test_io(void) for (i = 0; i <= sz; ++i) { for (j = i; j <= sz; ++j) { k = i; - iov_memset(iov, niov, 0, 0xff, -1); + iov_memset(iov, niov, 0, 0xff, sz); do { s = g_test_rand_int_range(0, j - k + 1); r = iov_recv(sv[0], iov, niov, k, s); From c18aaeb69072b74cb0a66e6638fcb14837c7cd3a Mon Sep 17 00:00:00 2001 From: Juan Quintela Date: Wed, 23 Aug 2017 10:27:11 +0200 Subject: [PATCH 2/2] tests: Make vmgenid test compile MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Just make sure that nr_tables is size_t not int. Once there, do the assert in the right place and be sure that we don't have a division by zero. Suggested-by: Cédric Le Goater Signed-off-by: Juan Quintela Tested-by: Cleber Rosa -- Drop the s/g_new0/g_malloc0/ change. Avoid division by zero with assert (danp) --- tests/vmgenid-test.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/tests/vmgenid-test.c b/tests/vmgenid-test.c index 3d5c1c3615..918c82c82a 100644 --- a/tests/vmgenid-test.c +++ b/tests/vmgenid-test.c @@ -40,7 +40,7 @@ static uint32_t acpi_find_vgia(void) AcpiRsdpDescriptor rsdp_table; uint32_t rsdt; AcpiRsdtDescriptorRev1 rsdt_table; - int tables_nr; + size_t tables_nr; uint32_t *tables; AcpiTableHeader ssdt_table; VgidTable vgid_table; @@ -62,9 +62,9 @@ static uint32_t acpi_find_vgia(void) ACPI_ASSERT_CMP(rsdt_table.signature, "RSDT"); /* compute the table entries in rsdt */ + g_assert_cmpint(rsdt_table.length, >, sizeof(AcpiRsdtDescriptorRev1)); tables_nr = (rsdt_table.length - sizeof(AcpiRsdtDescriptorRev1)) / sizeof(uint32_t); - g_assert_cmpint(tables_nr, >, 0); /* get the addresses of the tables pointed by rsdt */ tables = g_new0(uint32_t, tables_nr);